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All about Ham Radio
Updated: 1 hour 16 min ago

2 Meter VHF Quarter Wave Ground Plane Antenna – Ham Radio Q&A

Mon, 08/20/2018 - 8:31am

“Are you looking for a fun and easy antenna project? The 1/4 ground plane might be just the ticket. This particular ground plane is constructed out of an SO-239 chassis connector, so the radiator is attached to the center conductor of the connector and the radials each come off the base”

(adsbygoogle = window.adsbygoogle || []).push({}); Review DMR Dual Band Radioddity GD-77 Review HT October 25, 2017 No comments

Here is a video just showing the Radioddity GD-77 dual band DMR HT. A much better model than the GD-55, and definately worth the price over a TYT MD-3... Read more

Ailuance HD-1 Dual Band DMR HT Debut [ Video ] November 14, 2017 No comments

Check out this new dual band DMR HT and how easy it is to program! Read more

Unboxing and Testing the BaofengTech UV-5X3 Triband HT October 11, 2016 No comments

BaofengTech has released a model called the UV-5X3, which is a Triband HT, including the 220MHz band. Let’s take a look at this radio, see how t... Read more

Alex Loop vs CHA-P-Loop vs Alpha Loop Whats best for you? K6UDA Radio Episode 33 November 04, 2016 No comments

http://www.alphaantenna.com The Alpha Loop http://chameleonantenna.com The CHA-P-Loop http://www.alexloop.com My Alex Loop Antenna http://www.elecraft... Read more

Setting up a new RFinder M1DU August 23, 2017 No comments

◇ Main Features LTE 4G, Android IP67 rugged smartphone, professional walkie talkie. ◇ Basic Info ◇ Release 2017 April ◇ Walkie talkie output 4W DMR; 4... Read more

Show More Equipment DU3500AL Automatic Tuner by HA8DU March 17, 2015 No comments

  DU3500AL  Automatic Tuner by HA8DU Frequency range : 1,8-30MHz Matching range : max power  5:1  SWR 1,8MHz   35  ohm –   150 ohm 3,5MHz  ... Read more

Aerial-51 SKY-SDR August 06, 2017 No comments

GENERAL TRANSCEIVER  SPECIFICATIONS Technology Solid State SDR-DSP Direct Conversion Frequencies / Bands 1.8 MHz to 54.0 MHz 160, 80, 60, 40, 30, 20,... Read more

HF Linear 2KW HF2015DX – Chinese by BG5EFD May 06, 2016 No comments

RF Linear amplifier  coverd 1.8-30MHz WARC amateur bands , using Chinese FU728F ceramic tetrodes  working at  Class AB1 driving power:5-50W  output:20... Read more

Yaesu announced the external speaker SP-10 and SP-20 December 08, 2016 No comments

Yaesu SP-10 and SP-20 SP-10 and SP-20 On December 8, 2016, Yaesu Radio Co., Ltd. announced the external speaker “SP-10” (12,000 yen tax-ex... Read more

SmartLink™ for Remote Access – FlexRadio May 12, 2017 No comments

  Robust, Secure Remote Access to any FLEX-6000 – Operate from Anywhere Simple Click connect. It’s that simple. SmartLinkTM is designed fro... Read more

Show More VHF B-320-G VHF, HT/MOBLE AMP, 200W OUT, 144-148 MHZ February 18, 2016 No comments

Add this amp to your 2 Meter HTor mobile radio and get 200 Watts brutal output. Talk further, longer, clearer! Has 15 dB GaAsFET preamp, works all mod... Read more

FM / VHF Operating Guide by K0NR June 29, 2015 No comments

FM/ VHF Operating Guide By Bob Witte, KØNR This guide is intended to assist new amateur radio operators in figuring out what VHF FM and repeater opera... Read more

Cobra Electronics Announces 2015 Line of VHF Marine Radios In Time for Upcoming Boating Season May 06, 2015 No comments

  VHF Marine Radios CHICAGO, IL (May 6, 2015) — Cobra Electronics Corporation, the leading designer and marketer of award-winning marine, safety,... Read more

Anytone AT-3208UV May 13, 2015 No comments

    Anytone AT-3208UV Features: 5 Watts VHF 4 Watts UHF RX & TX 136-174 MHz & 400-520 MHz Can operate VFO mode & Channel mode at... Read more

New Video, D-STAR and the Icom RS-MS1A Android App April 24, 2015 No comments

  Icom UK together with TX Films have produced a video providing an introduction to D-STAR and the Icom RS-MS1A Android D-STAR application softwa... Read more

Show More Antenna Elecraft XG3 RF Signal Source January 18, 2015 No comments

Photo Credit: Bill Hammond, AK5X The XG3 RF Signal Source  is a powerful programmable signal source that fits in the palm of your hand. Miniature RF s... Read more

HF Portable Par End-Fedz EF-20, Jackite Fiberglass Pole Deployment November 17, 2015 No comments

This video shows how easy is is to set up an end-fed HF antenna and a fiberglass pole, even in non-ideal weather. Sorry for the water on the lens; the... Read more

THE TILTED TERMINATED FOLDED DIPOLE – A PRACTICAL BUILDING GUIDE March 02, 2015 No comments

“THE TILTED TERMINATED FOLDED DIPOLE Recently, I have been experimenting with the Tilted Terminated Folded Dipole, a.k.a. TTFD, a.k.a. T2FD.  I... Read more

Comet mobile antenna of 430MHz band – ASF-430 April 15, 2015 No comments

  Comet is the 19th Kansai first exhibition was of the amateur radio festival venue, fin-type mobile antenna · ASF-430 of 430MHz band. Adopted wa... Read more

Cross-Band Yagi 144/430 MHz 5+9 el. 150cm April 24, 2015 No comments

  DK7ZB based, especially recalculated for armateur sattelites use – 146 and 437 MHz. Cross-Band Yagi The antenna is designed mainly for co... Read more

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RUMlogNG2Go for iOS version 3.5.2 now available

Sun, 08/19/2018 - 9:52am

Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.5.2 of his RUMlogNG2Go logger for the iPhone and iPad.  RUMlogNG2Go can be downloaded from the Apple iTunes store.  More information on RUMlogNG2Go can be found on Tom’s website,

What’s New in Version 3.5.2
  • Added an option to sort the QSO table (iPhone)
  • Fixed a problem with “Auto login” for few dx-cluster (iPhone & iPad)

RUMlogNG2Go features include:

  • Use the same log file on your Mac computer
  • 4 user definable logging fields
  • Exchange the logs via iTunes Filesharing or Dropbox
  • Import ADIF files via email, clipboard or Dropbox
  • Export ADIF files via email, clipboard or Dropbox
  • Log your QSOs up to 3cm
  • Logging includes DXCC, heading and distance calculations
  • eQSL and/or LoTW users will be identified during logging
  • Can save your current position into the Note field, useful for portable or mobile operation
  • Sunset and sunrise calculations
  • RUMlog keeps track of your worked and confirmed countries
  • Direct log upload to eQSL (iPad only)
  • Direct QSL download from eQSL (iPad only)
  • Direct QSL download from LoTW
  • Direct log/QSO upload to Club Log
  • Integrated telnet DX cluster, including a spot collector
  • DX cluster command macros
  • LoTW users are marked in a dx spot
  • Real Time Grayline Map, showing short and log path to the station
  • HamQTH.com and qrz.com integration
  • Basic data exchange with Elecraft, Icom, Kenwood and Yaesu transceivers using the pigtail hardware (http://pignology.net) (iPad and few TRX only)
  • Full control panel for Elecraft K3, KX3 and KX2 (iPad only)
  • Work RTTY, PSK and CW using the Elecraft transceivers built in functions (iPad only)
  • DXCC table with counter (including Deleted DXCCs)

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Antenna ACOM HF Log-periodic antennas January 06, 2015 No comments

ACOM, Bulgaria manufactures a range of 8, 10 and 12 element HF log-periodic antennas.  Their main features are: designed and produced to give top perf... Read more

The 10/15/20 Meter Trap Vertical Antenna January 01, 2015 No comments

  “This antenna project came out very nice. It’s a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 met... Read more

Remote Antenna Switches DXE-RR8B-HP April 09, 2015 No comments

    Remote Antenna Switch, 8 Port, 5kW Key-Down, Each RR8B-HP Remote Antenna Switches are RF antenna switches with excellent performance on... Read more

How-To: Splice Wire to NASA Standards August 05, 2016 No comments

Developed during the heyday of the telegraph, the Lineman’s splice is designed for connections that will be under tension. It is commonly claimed that... Read more

MEF-330-1K Multi Band End Fed Half Wave Antenna March 10, 2015 No comments

  Product Description   MEF-330-1K Multi Band End Fed Half Wave Antenna This is an End-Fed Half Wave antenna (EFHW) resonant on 8 amateur bands. ... Read more

VHF Yaesu announced the FT-70DR March 21, 2017 No comments

Yaesu FT-70DR C4FM FDMA / FM 144/430 MHz DUAL BAND 5W Handheld Transceiver The FT-70DR is a compact System Fusion transceiver providing both conventio... Read more

MOTOTRBO XPR 7000 Series February 28, 2015 No comments

  The MOTOTRBO XPR 7000 Series is a communications powerhouse for demanding users. Offering a full set of features and rich functionality in one... Read more

How To Do a VHF SOTA Activation by K0NR April 06, 2015 No comments

  The Summits On The Air (SOTA) program has really taken off in North America. SOTA originated in the UK in 2002, so it took a little while for i... Read more

New 23cm IARU Region 1 record claimed July 23, 2017 No comments

Terry M0VRL reports that on 14 July 2017 he completed a QSO of 2,662km, from IO70PO to IL28FC, with Pedro EA8AVI in the Canary Islands that breaks the... Read more

ME3000-V 2m EME – VHF Amplifier ( 3KW – 144MHz ) January 02, 2015 No comments

  VHF Amplifier  Frequency Coverage: 144-146MHz amateur band.   extensions and/or changes   on request. • Power Output: 3000 W CW/SSB • Intermodu... Read more

Equipment HF Linear 2KW HF2015DX – Chinese November 18, 2015 No comments

HF2015DX RF Linear amplifier  coverd 1.8-30MHz amateur band , using Chinese FU728F ceramic tetrodes  working at  Class AB1 Input:30-40W  output:2000W... Read more

ModMic 4.0 Attachable Boom Microphone July 10, 2015 No comments

ModMic Attachable Boom Microphone. A High quality electret microphone on a boom that attaches to any headphones to create your perfect headset. Produc... Read more

Solid State General Communication Power Amplifier- GCS1D2GYV September 24, 2015 No comments

1.5 – 31.5 MHz / 2500 Watts The GCS1D2GYV (SKU 4054) is suitable for HF broadband or band specific high power, CW and pulse Jamming applications... Read more

Codan 2110M – HF Transceiver – Military March 05, 2015 No comments

    Frequency rangeTransmit: 1.6 to 30 MHz, 10 Hz steps Receive: 0.25 to 30 MHz, 10 Hz steps Frequency Stability: ±0.5 ppm from –30°C to +60... Read more

DX Engineering UT-KIT4 Complete Coax Cable Tool Kits DXE-UT-KIT4 January 05, 2016 No comments

DX Engineering DXE-UT-KIT4 Complete Coax Cable Tool Kits are cost-saving tool kits contained in a handsome, convenient carrying case. They are designe... Read more

Review HF Mobile Antennas – Ham Nation January 21, 2017 No comments

Gordon West (WB6NOA) talks about HF mobile antennas, and getting the feed-point impedance at 50 Ohms. Also covered, is a recommendation on the type of... Read more

Performance Test of MFJ-1846 Six-Band Hex-Beam Antenna August 02, 2018 No comments

“Performance results of MFJ-1846 Six-band hex-beam antenna. The antenna shows great directionality and ample gain. The SWR doesn’t quite c... Read more

The Xiegu X5105 : QRP Portable Transceiver February 21, 2017 No comments

X5105 is a highly portable  transceiver working at HF+6m band, with a built-in power output of 5W. Technical features: double-conversion superheterody... Read more

“Microphones” is the topic for the latest (April 12) episode of the “ARRL The Doctor is In” April 12, 2018 No comments

  “Microphones” is the topic for the latest (April 12) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Enginee... Read more

RF transistor handles 1.5kW 1.8 to 500 MHz August 25, 2016 No comments

NXP’s MRF1K50H is a 1,500W LDMOS transistor, following on from the 1,250W MRFE6VP61K25H. This high ruggedness device, MRF1K50H, is designed for use in... Read more

4-Square installation in Eastport, Maine [ W2RE ]

Sat, 08/18/2018 - 8:59am

Ray is installing a Four-Square system using four of the DX Engineering DXE-7580FS-VA-2 Vertical antennas at the Eastport, Maine site.

Brand:DX Engineering

Manufacturer’s Part Number:DXE-7580FS-VA-2

Part Type:HF Vertical Antennas and Packages

Product Line:DX Engineering 80 Meter Self Supporting Heavy Duty Vertical Antennas

DXE Part Number:DXE-7580FS-VA-2

HF Vertical Antenna Type:Monoband, adjustable

Vertical Antenna Height:68.00 ft.

Antenna Wind Survival:92 mph, self-supporting

Antenna Power Rating:5,000 W

Bandwidth Maximum at 2 to1 SWR:557 kHz

Maximum Antenna Tubing Diameter:3.000 in.

Vertical Antenna Mount Type:Heavy-duty pivoting fixture

Antenna Mount Operation:Single operator crank-up option

HF Vertical Antenna Mount Material:Stainless steel

Vertical Antenna Mount Included:Yes

Mounting Clamps Included:Yes

Mast Mounting Clamp Minimum:2.375 in.

Mast Mounting Clamp Maximum:3.000 in.

Radial Plate Included:No

Radial Wire Included:No

UNUN Included:No

Antenna Tuner Required:No

Antenna Tuner Included:No

Antenna Feedline Connection Type:Stainless hardware

Antenna Weight:60.00 lbs.

Quantity:Sold as a kit.

Notes:Customer-supplied radial wires required. A greater number of radials improves performance, but radial length is not critical for a ground mounted vertical antenna installation.

HF Vertical Antenna Band:80 meters

HF Vertical Antenna Mounting Position:Ground

Add Radials for Higher Performance:Yes

DX Engineering 80 Meter Self Supporting Heavy Duty Vertical Antennas, model DXE-7580FS-VA-2, are high performance vertical antennas specifically designed for the 75/80 meter band. These DX Engineering 68 ft. vertical antennas allow you to achieve the strongest possible presence at your power level and be competitive. These are FULL SIZE, quarter-wave vertical antennas that deliver fantastic specs and the highest possible performance at a price that can easily be justified.

Every design detail of the DXE-7580FS-VA-2 Heavy Duty Verticals provide for a very rugged 80 meter antenna that can stay up with no guying necessary and no worry. A 3 in. O.D. thick-wall 6061 aluminum tubing base and an extra-large insulating channel are combined with a patented* heavy duty stainless steel pivoting fixture that is second to none. Engineered for ease of assembly and adjustments, with corrosion-resistant aluminum tubing, stainless steel mounting brackets, and stainless steel hardware, these are very durable and attractive self-supporting antennas. If an extreme wind storm is predicted, one operator can easily lower and raise these antennas safely, due to the simplicity of the included Heavy Duty Pivoting Fixture and optional DXE-VRW-1 Manual Winch.

DX Engineering 80 Meter Self Supporting Heavy Duty Vertical Antennas offer full band coverage, with a 2:1 SWR bandwidth of up to 557 kHz, depending on your radial field. Your internal tuner can get the SWR down to 1:1 on any DX frequency for maximum power transfer.

DX Engineering 80 Meter Full Size Quarter Wave Heavy Duty Vertical Antennas feature:
— Self-supporting – will withstand steady-state winds in excess of 92 MPH without guying (guying required under extreme wind speed conditions)
— 5 kW SSB and CW rated—unparalleled reliability
— Ultra-rugged construction starts with 3 in. O.D. aircraft-grade heavy wall tubing
— Ultra-wide SWR bandwidth and unbeaten gain
— Highest wind ratings–high strength 6063/6061 tubing manufactured to DX Engineering specifications
— Easy tilt up and down– Unique fold-over antenna mount features DX Engineering’s patented stainless steel Pivoting Fixture, *U.S. Patent Number 8,130,168
— High power handling and high strength, UV protected EXTREN® insulators
— No rust–100 percent stainless steel tubing clamps and hardware
— Reliability second to none–specially manufactured stainless and aluminum saddle clamps, stainless bolts, and precision machining on each antenna

Note: For additional information, please look at the files under the “Documentation” tab.

Designed to the highest of standards, DX Engineering 80 Meter Self Supporting Heavy Duty Vertical Antennas are very affordable, and could very well be the finest 80 meter antenna you will ever own.

(adsbygoogle = window.adsbygoogle || []).push({}); VHF New Yaesu FTM-100DR System Fusion radio coming this June! May 14, 2015 No comments

      Yaesu FTM-100DR Item Description Dual Band Analog/Digital Mobile Transceiver Detailed Description FTM-100DR 2M/70 cm Dual-Band C4... Read more

Alinco DJ-MD5T VHF/UHF 5W DMR HT May 18, 2018 No comments

Alinco DJ-MD5T VHF/UHF 5W DMR DUal Mode Tier I/II HT Features: DMR Tier I and Tier II 1.77 inch TFT color LCD VFO/MR Switch Output Power Selection (5W... Read more

APRS with a Baofeng, Bluetooth TNC by Mobilinkd May 25, 2017 No comments

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Tytera (TYT) MD-380 UHF 400-480MHZ Digital Radio (DMR) June 05, 2015 No comments

  TYT MD-380 UHF 400-480MHZ Digital Radio(DMR) ■Remote kill/stun/activate ■Priority Scan ■Voice Prompt ■Complying with digital protocol ETSI TS10... Read more

VOXTER UV-W8 VHF and UHF March 04, 2015 No comments

    VOXTER UV-W8 Technical Parameter Model/ General VOXTER UV-W8 Frequency range VHF 136-174MHz UHF 400-480MHz Channel Capacity 2X128 Channe... Read more

Review Baofeng DM-5R DMR Radio – Unboxing & First Impressions October 16, 2016 No comments

BaoFeng DM-5R DMR Digital Radio VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power 21CM Dual Band Antenna 8-Level Stepped F... Read more

Icom 7300 WSJT-X Combined With HRD and JT-Alert February 13, 2017 No comments

Part 1 starts with Icom 7300 setup in the menu and connectors. In preparation for connecting to HRD and HRDLogbook. 03:03 Setting up Icom 7300 for rec... Read more

MFJ 8-Band Cobweb MFJ-1836+HK34 Add-On Kit Complete Setup February 20, 2018 No comments

“This video I will be assembling both the MFJ-1836 6 band cobweb antenna with the additional 30/40m add-on kit. The add-on kit is intended for t... Read more

Retevis RT3S Dual Band DMR Radio With GPS & Record + Programming July 05, 2018 No comments

RT3S dual band digital radio uses Digital Mobile Radio (DMR) Tier 2 Standard protocol. It is compatible with the popular MOTO TRBO series Tier I and I... Read more

Review of Chameleon P-Loop Magnetic Antenna May 30, 2017 No comments

  CHA P-LOOP 2.07.0-29.7 MHz The CHA P-LOOP 2.0 was designed with portability, ease of use simplicity, ruggedness and high performance in mind. U... Read more

Antenna A Poor Man Antenna Analyzer by GM3VLB December 15, 2014 No comments

A Poor Man Antenna Analyzer  by André Saunders, GM3VLB – Read .pdf File in adobe reader Link 1   or Link 2 Also Visit: http://www.gm3vlb.com/... Read more

SAL 30 Mark II Receiving HF antenna by Array Solutions July 20, 2017 No comments

The new version of the well known Shared Apex Loop Array, the SAL-30 Mark II is here. The four vertical sides of the loops have been replaced by a sin... Read more

Rotatable 160 Meter Receiving Loop – WB6RSE Wins July QST Cover Plaque Award July 22, 2015 No comments

The winner of the July 2015 QST Cover Plaque award is Steve Lawrence, WB6RSE, for his article “Rebuilding a Receiving Flag Antenna for 160 Meters.” Th... Read more

Chameleon Portable HF Antenna Deployment Configurations March 14, 2017 No comments

There is no shortage of ways to deploy a Chameleon Hybrid-mini/micro antenna! In this video, I will show you some of the most common ways to deploy a... Read more

NVIS: Near Vertical Incidence Skywave [ PodCast ] November 09, 2017 No comments

Sometimes the best direction to send your signal is straight up! Near vertical incidence skywave, or NVIS, is a skywave radio-wave propagation path th... Read more

App - Mobile DX Hunter – The amateur radio App for DX-enthusiasts June 02, 2015 No comments

DX Hunter – The amateur radio App for DX-enthusiasts Description DX-Hunter is an application for amateur radio operators, short wave listeners a... Read more

EchoLink for iOS version 2.10.18 is now available May 07, 2018 No comments

EchoLink for iOS version 2.10.18 is now available in the App Store. This is a 64-bit build that is fully compatible with iOS 10 and modern iOS devices... Read more

Yaesu FT817 CAT Control Setup & BT Remote Control | Android March 30, 2015 No comments

  In this video we run through setting up a bluetooth CAT control for the Yaesu FT-817, using an Android Tablet, bluetooth interface, and Yaesus... Read more

CWSpeed IOS App – The fun and efficient way of learning morse code March 19, 2015 No comments

Description The fun and efficient way of learning morse code! Features: – Uses Koch’s training method (the most efficient known to date)... Read more

HAM QuickLog – IOS App December 03, 2014 No comments

  Mircules HAM QuickLog is great new HAM radio logging software for the iPad, for quick and easy HAM Logging. This handy app helps you to quickly... Read more

 

SAQ in Sweden Receives More than 300 Reports on Alexanderson Day, July 1

Fri, 08/17/2018 - 1:31pm

SAQ, the old Alexanderson alternator transmitter at the World Heritage Grimeton Radio Station in Sweden, received 321 listener reports in response to its three 17.2 kHz transmissions on Alexanderson Day, July 1.

video of the transmissions is available on YouTube. SAQ said five reports indicated that SAQ was not heard. A summary of listener reports and a map of listener reports have been posted. Amateur Radio Station SK6SAQ was active on CW and SSB during the event.

 

This summer’s transmissions were the first Alexanderson Day transmissions since 2016. Last July, the event was cancelled due to ongoing maintenance work.

Source:ARRL

(adsbygoogle = window.adsbygoogle || []).push({}); VHF Kenwood D-STAR – Tribander 144/220/440 MHz May 21, 2016 No comments

Kenwood D-STAR Built-in high-performance GPS unit Transflective color TFT display Weatherproof toughness meeting IP54/55 standards Wide-band and multi... Read more

The ARRL Repeater Directory (Pocket-size) March 24, 2015 No comments

  The ARRL Repeater Directory (Pocket-size) The best directory of frequencies for repeaters around the country!The ARRL Repeater Directory includ... Read more

HYS TC-MAUV11 Dual Band with DTMF June 13, 2015 No comments

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Baofeng DM-5R: Manuals and Software September 21, 2016 No comments

Baofeng DM-5R DMR Digital Radio VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power 21CM Dual Band Antenna 8-Level Stepped F... Read more

BaoFeng UV-5R vs. AnyTone NSTIG-8R April 08, 2015 No comments

  A brief over view of differences between the AnyTone NSTIG-8R versus the BaoFeng UV-5R. This video highlights primarily the feature differences... Read more

Antenna Radials on Vertical Antenna Systems April 12, 2017 No comments

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Vertical Dipole Array by OH1TV January 13, 2017 No comments

An easy to build antenna for seaside locations 17m and 15m versions were used at 9M0O DX-pedition in 2016   Some notes • Wire lengths R and D are... Read more

Free Azimuthal Maps by NS6T December 03, 2014 No comments

  Request for free an Azimuthal Map for any place in World:                                                       http://ns6t.net/azimuth/azimuth... Read more

Log Periodic Dipole Array 13 element 10MHz – 54MHz High Performance LPD January 08, 2018 No comments

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6-40 Meter Alpha MOTO the mobile HF antenna September 17, 2015 No comments

All Alpha Antennas are handmade & built to order. We appreciate your pride & patience in your antenna system as it is prepared. The Alpha MOTO... Read more

Equipment DZKit Sienna HF Receiver/Transceiver Kit July 24, 2015 No comments

True kit – soldering required (about 40 hours to build boards, assemble, cal and test) Modular (start small, add modules as your budget allows)... Read more

Diamond CX-210N November 17, 2014 No comments

The Diamond CX-210N is a low loss, two position coaxial switch providing very low loss and high isolation. It is rated DC to 3000 MHz and can handle u... Read more

uBITX – A Compact HF Transceiver March 14, 2017 No comments

uBITX – A Compact HF Transceiver 10 watts pep on lower HF bands, dips to 5 watts on 28 MHz SSB and CW Simple to build and align Minimal controls... Read more

New DV4Home V2 digital IP transceiver for D-Star, DMR, C4FM, NXDN October 29, 2017 No comments

 DV4home V2    The DV4home V2 is another member of the successful family of DV4 products. As usual it supports all digital modes, while simplifyi... Read more

TEN-TEC Rebel Model 506 Open Source QRP CW Transceiver November 18, 2014 No comments

The TEN-TEC Rebel model 506 transceiver is designed with the purpose of providing Ham Radio operators a platform for developing and writing code using... Read more

Review Yaesu FTM 3200DR Transceiver- ARRL Review Video November 09, 2016 No comments

FTM-3200DR C4FM FDMA / FM 2-Meter TRANSCEIVER   The new FTM-3200DR is a ruggedly built yet compact C4FM/FM VHF mobile transceiver, providing high outp... Read more

HRN 399 3/4 – DMR Overview July 04, 2018 No comments

David and Guest Darren AJ6BL talk about getting up and running on DMR. Read more

QST Product Review – IC 7100 HF/VHF/UHF Transceiver December 06, 2015 No comments

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Jim, W6LG, Shows an Electrical Plug After It Failed June 01, 2018 No comments

Jim shows what happened to an electrical plug after it developed a loose screw. Read more

All About CTCSS – ARRL HQ Video March 08, 2017 No comments

A basic primer about the Continuous Tone Coded Squelch System Continuous Tone-Coded Squelch System The Continuous Tone Coded Squelch System, commonly... Read more

Well-Known Contester, DXer Bob Morris, W4MYA, SK

Fri, 08/17/2018 - 12:30pm

Robert S. “Bob” Morris, W4MYA, of Goochland, Virginia, died on August 14. An ARRL Life Member, he was 72. Morris had been suffering from cancer but remained active on the air until very recently. He was sometimes called “Dude” within the contesting community for one of his favorite expressions, “Run ’em, dude.”

Morris was a member of the Potomac Valley Radio Club, enjoyed both contesting and DXing, and had built a multi-multi station in Goochland, where he mentored budding operators. In his working years, he was employed by AT&T in the Long Lines department. Fred Laun, K3ZO, remembered W4MYA as “the same go-hung fellow, right up to the end.” — Thanks to The Daily DX

Source: ARRL

(adsbygoogle = window.adsbygoogle || []).push({}); VHF Kenwood TK-D200GE VHF DMR Portable with GPS, Display and Keypad February 24, 2015 No comments

    Kenwood TK-D200GE  Key Features TDMA DMR Digital Air Interface – 2 slot/1 carrier in 12.5kHz Complies with ETSI DMR Standard TS 10... Read more

Introducing the IC-M423G VHF/DSC with Integrated GPS Receiver January 14, 2015 No comments

The IC-M423G is an enhanced version of the IC-M423 fixed mount VHF/DSC with some new enhancements including an integrated GPS Receiver which allows cu... Read more

145 MHz Low Loss Bandpass Helical Filter April 29, 2015 No comments

    Low Loss Bandpass by Mile Kokotov Basic design of the filter is from RSGB VHF-UHF Manual, but I made some modifications. Both Inductors... Read more

BAOFENG UV-82 Dual Band Handheld Transceiver Radio Walkie Talkie January 25, 2015 No comments

    Description : BAOFENG UV-82 Dual Band Handheld Transceiver Radio Walkie Talkie The latest radio to come from Baofeng! This radio has upp... Read more

Baofeng DM-5R: Manuals and Software September 21, 2016 No comments

Baofeng DM-5R DMR Digital Radio VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power 21CM Dual Band Antenna 8-Level Stepped F... Read more

Antenna How High should my Dipole Antenna be? January 19, 2015 No comments

Dipole Antennas – the Effect of Height Above Ground I frequently hear the question: how high should my dipole be? Or alternatively, will my dipo... Read more

Rotators + Controller Rot1prog USB are smal, medium ideal for use with HEXBEAM December 23, 2017 No comments

New product on offer – HEXBEAM SP7IDX TECHNOLOGY recommends SPID ELEKTRONIK – NEW 2017 rotators + controller Rot1prog USB are smal, medium ideal... Read more

Light Beam Plus Antenna – LBP-20M February 10, 2015 No comments

  The support structure of the Light Beam Plus Antenna series is very different from that of any other antenna that is currently on the market. M... Read more

Antenna Circular Polarization October 08, 2015 No comments

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Green Heron Rotator Controller RT-21azel October 02, 2014 No comments

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Introducing the World’s longest 50MHz/70MHz Dual Bander?

Fri, 08/17/2018 - 8:14am

The new 6-4-20 is a serious performer with an 11.1m computer optimised tapered boom and 10 elements on both 50MHz and 70MHz with a single feed point.

The 6-4-20 provides impressive performance on both bands with 14.46dBi free space gain on 70MHz and 13.41dBi free space gain on 50MHz. Placed 12m above average conductive ground, gain increases on 70MHz to over 20dBi and on 50MHz to almost 19dBi.

In addition, the 6-4-20 has been optimised for FT8 frequencies as well as the traditional operational areas of the band so as can be seen from the plots, SWR is flat through both bands os no amplifiers will have issues.

The previous longest dualbander for these bands was the 8-8-8- which has an 8m boom with 8 elements on each band sells well. The new dualbander has been in operation at OH5LK and EA5GF this summer with excellent results.

Want a monster on your tower for both 50MHz and 70MHz? There is just one place to look.

Photo below shows the 6-4-20 @ EA5GF nested between an HF Yagi and long-boom 2m Yagi.

https://www.innovantennas.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=517&virtuemart_category_id=11&Itemid=141&lang=en

Justin Johnson G0KSC
InnovAntennas Limited
justin@innovantennas.com 
www.innovantennas.com 
InnovAntennas Ltd
Antenna House, 20 Sanders Road,
Canvey Island, Essex SS8 9NY
Tel UK: +44 (0) 203 384 0072

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“Dummy Loads” is the topic of the new (August 16) episode of the “ARRL The Doctor is In” podcast. Listen…and learn!

Thu, 08/16/2018 - 10:51am

“Dummy Loads” is the topic of the new (August 16) episode of the “ARRL The Doctor is In” podcast. Listen…and learn!

Sponsored by DX Engineering, “ARRL The Doctor is In” is an informative discussion of all things technical. Listen on your computer, tablet, or smartphone — whenever and wherever you like!

Every 2 weeks, your host, QST Editor-in-Chief Steve Ford, WB8IMY, and the Doctor himself, Joel Hallas, W1ZR, will discuss a broad range of technical topics. You can also e-mail your questions to doctor@arrl.org, and the Doctor may answer them in a future podcast.

Enjoy “ARRL The Doctor is In” on Apple iTunes, or by using your iPhone or iPad podcast app (just search for “ARRL The Doctor is In”). You can also listen online at Blubrry, or at Stitcher (free registration required, or browse the site as a guest) and through the free Stitcher app for iOS, Kindle, or Android devices. If you’ve never listened to a podcast before, download our beginner’s guide.

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A New Jersey radio amateur and Military Auxiliary Radio System (MARS) member has received a Lifetime Achievement Award from President Donald Trump. AR... Read more

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FT8CALL – The NEWEST HF Digital Mode, Introduction and Demo

Thu, 08/16/2018 - 8:19am

 

FT8CALL

“FT8, as we know, has dominated the airwaves for over a year now. Imagine the ability to have keyboard to keyboard ragchew, with the same exact performance of FT8. Why wouldn’t you? This is brand new, still under development, and will surely take off big time! FT8CALL is alive! https://groups.io/g/ft8call/wiki/FT8C... (Join to download software and chat with others) https://groups.io/g/ft8call/search?q=…”

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RigExpert AA-55 ZOOM Option Bluetooth is coming

Thu, 08/16/2018 - 7:53am

“Dear Partners & Customers,

As a rule, unexpected discoveries of the modern world take place at the intersection of technologies.
We implanted Bluetooth technology in the RigExpert AA-55 ZOOM antenna analyzer and opened up new applications for this popular device.

Now, thanks to its ability to work in conjunction with a smartphone or the newest Netbook, the new RigExpert AA-55 ZOOM Option Bluetooth antenna analyzer is your “laboratory” in a field.
Download and install the Android application or AntScope2 for your Netbook to:
– operate the analyzer remotely;
– see the characteristics of your antenna in more detail;
– locate cable faults in TDR mode;
– galvanically isolate the analyzer from the computer;
– share measurement results through social networks.

Android application and compatible AntScope2 software are here: https://rigexpert.com/products/software/

* Planned release date is September, 1st 2018.

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Dave Popkin, W2CC/AAR2BU Receives Presidential Lifetime Achievement Award

Wed, 08/15/2018 - 5:07pm

A New Jersey radio amateur and Military Auxiliary Radio System (MARS) member has received a Lifetime Achievement Award from President Donald Trump. ARRL Charter Life Member Dave Popkin, W2CC/AAR2BU, was recognized for his extraordinary contributions as a MARS volunteer.

“On behalf of a grateful nation, I thank you for your lifetime of service to your fellow Americans and those most in need,” President Trump said. “Through at least 4,000 hours of service, you have ensured the continuation of America’s unparalleled commitment to improving the lives of others. You have served as a model of the American spirit. Your many hours of service have strengthened the bonds of cooperation and trust that bring people together, while helping to address some of the greatest challenges of our time.”

MARS Region 2 Director Carver Washburn, W2TFM/AAA2RD, said Popkin’s “long and distinguished” history as a volunteer extends over 56 years with US Army MARS, averaging some 2,000 hours a year.

“Dave is particularly noted for his MARS leadership roles, mentoring, and training initiatives,” Washburn noted. “It all started with his inspiration and his motivation to take positive action that, to this day, has fundamentally enhanced the ability of [the Department of Defense] to achieve its goals under the most dire of circumstances, such as occurred in Puerto Rico during Hurricane Maria in September 2017.”

Washburn said Popkin served as net control for MARS radio nets in Region 2, and has served as MARS New Jersey State Director.

“Also evident were his unique talents to train and mentor these team members, substantially expanding the strength of the organization,” Washburn said. “Dave made a difference in innovative ways through this role. He worked on the HQ senior staff for many years as well. Chief Army MARS Paul English and I are most grateful for his long and valued MARS service.”

A former FCC field inspector who also served as an ARRL Official Observer, Popkin has made similar contributions to Amateur Radio, Washburn said, citing Popkin’s years of leadership with the New Jersey Phone Net and with the Englewood Cliffs (New Jersey) Amateur Radio    Club’s ARRL Field Day operation.

The President’s Volunteer Service Award is a civilian honor bestowed by the President of the United States. Established by executive order by George W. Bush, the award was established to honor volunteers who give hundreds of hours per year helping others through the President’s Council on Service and Civic Participation. The award can be granted to individuals, families and organizations in the US to recognize more than 4,000 hours of extraordinary service as a volunteer. — Thanks to Carver Washburn, W2TFM/AAA2RD 

Source:ARRL

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Yaesu announced two new radios are coming to the market! – Yaesu FTM-3207DR and FT-2980R May 16, 2017 No comments

Yaesu FTM-3207DR and FT-2980R will be available late summer / early fall!  Yaesu FT-2980R 80W FM 2M Mobile Transceiver As its model name suggests, the... Read more

All about repeaters – Ham College 12 January 04, 2016 No comments

All about repeaters. More Technician exam questions. Read more

BaoFeng UV-82HP (Camo) VHF/UHF April 13, 2016 No comments

BaoFeng UV-82HP WHAT MAKES IT UNIQUE? * It has 3 Power Levels (1, 5, 7 watt) * VFO/ MR (Frequency Mode) can be locked via software * The Dual Push-to-... Read more

DMR portable SPH6000 Serial – Samhoo March 02, 2015 No comments

  Samhoo is delighted to formally launch Digital Trunking Portable SPH6000 product serial, which is fully compliant with ETSI DMR Tier 3 & PD... Read more

Antenna Buddipole vs AlexLoop Walkham November 03, 2015 No comments

Buddipole vs AlexLoop Walkham  Tried to do the most objective analysis on a comparison between the Buddipole and a AlexLoop Walkham antenna. I used a... Read more

A powerful analyzer KC901S RF Multimeter with vector antenna analysis function April 24, 2015 No comments

  KC901S is a “RF multimeter”. It supports the analysis of single port vector network analysis and dual port scalar network analysis,... Read more

MFJ-226 1-230 MHZ ANTENNA EXPECT TIMES GRAPHIC ANALYZER April 02, 2015 No comments

  MFJ VNA Antenna Analyzer covers 1 to 230 MHz, 1Hz resolution. •Frequency sweep plots: SWR, Impedance, Resistance, Reactance,Phase Angle, Comple... Read more

3D Print – 3 element 2m (145 MHz) Ultra Portable yagi May 26, 2015 No comments

3D Print – 3 element 2m (145 MHz) Ultra Portable yagi by OK1CDJ Description Tape measurement yagi. Weight only 170 g. The longest part is 530 mm... Read more

Feed Point Sealant March 13, 2016 No comments

Description Liquid Rubber Feed Point Sealant 30ml bottle with brush-in-lid Applicator We have formulated an excellent UV resistant rubber sealant to e... Read more

Equipment Coax Cable Stripping Tools May 17, 2015 No comments

  Coax Cable Stripping Tools DX Engineering DXE-UT-8213LR Coax Cable Stripping Tools have been designed to properly prepare coaxial cable for use... Read more

Solid State General Communication Power Amplifier- GCS1D2GYV September 24, 2015 No comments

1.5 – 31.5 MHz / 2500 Watts The GCS1D2GYV (SKU 4054) is suitable for HF broadband or band specific high power, CW and pulse Jamming applications... Read more

Yamaha CM500 Headset with built-in microfone May 28, 2015 No comments

Yamaha CM500 Headset The Yamaha CM500 is a Circumaural headset that combines a pair of comfortable, noise-attenuating earcups and flexible headband wi... Read more

OFF-GRID HAM RADIO: Simple Emergency Communication When the Grid Goes Down December 01, 2014 No comments

Check great article about Emergency Communication from Robert Richardson  :     Read more

RS-918SSB HF SDR Transceiver April 07, 2017 No comments

Spectrum Dynamic Waterfall Display Multiple Working Modes: Receive Mode, Transmit Mode, TUNE Mode, VFO Mode, SPLIT Mode DSP Digital Signal Processing... Read more

 

AE4FH Interviews Hans from QRP Labs About the QSX SDR Transciever Kit

Wed, 08/15/2018 - 2:43pm

“YOTA 2018 South Africa is now over, and one of the highlights of the youngsters’ week were the kit building sessions. They had the opportunity to build one of three kits, one of which was the newly-introduced QSX SDR transceiver kit. This kit, which was designed by Hans Summers (G0UPL) of QRP Labs (http://qrp-labs.com), and it will be available in the near future. Hans generously donated the kits and his time to YOTA so the youngsters would have a fantastic kit to make and take home, so we decided to do an interview with him so hams around the world could learn about his kits and his company. Please take the time to watch the entire video to learn more about the kit.”

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Antenna MONO 3 40 MOXON January 14, 2017 No comments

MONO 3 40 moxon is every contester’s dream, a rugged monoband yagi, compact design and large bandwidth. Specifications Frequency MHz: 7~7,3 Active ele... Read more

ACOM HF Log-periodic Antenna June 04, 2016 No comments

ACOM, Bulgaria manufactures a range of 8, 10 and 12 element HF log-periodic antennas. Their main features are:  designed and produced to give top perf... Read more

W3DZZ Multi-band Antenna 80-40-20-15-10m January 14, 2015 No comments

Read on .pdf all information about the famous W3DZZ antenna  – Download Here Read more

Steel Slinky Dipole Antenna 10 to 80 meters band January 30, 2015 No comments

  Steel Slinky Dipole Read full Article:     Read more

RigExpert AA-30.Zero – HF Antenna Analyzer (0.6 TO 30 MHZ) November 23, 2017 No comments

A standard AA-30 analyzer but without enclosure, LCD display and keypad. But .ZERO is even more powerful than the good old AA-30. Description RigExper... Read more

Equipment YAESU – FT-857D February 25, 2015 No comments

    YAESU – FT-857D The FT-857D, the world’s smallest HF/VHF/UHF mobile transceiver, provides base station-type performance from... Read more

INRAD RX7300- New receive antenna socket for IC 7300 February 21, 2017 No comments

RX7300 IHSG and Vibroplex/INRAD announce the release of a new accessory product for the Icom IC-7300 which provides a receive antenna socket on the re... Read more

Elecraft KX2 announced at the Dayton Hamvention 2016 May 18, 2016 No comments

Elecraft KX2 Hello to all, We are please to announce a new radio to complement the KX3 and the KX-Line.  Here are the details. What:  Elecraft announc... Read more

LimeSDR Mini September 14, 2017 No comments

An open, full-duplex, USB stick radio for femtocells and more The LimeSDR Mini development board is a hardware platform for developing and prototyping... Read more

DU3500AL Automatic Tuner by HA8DU March 17, 2015 No comments

  DU3500AL  Automatic Tuner by HA8DU Frequency range : 1,8-30MHz Matching range : max power  5:1  SWR 1,8MHz   35  ohm –   150 ohm 3,5MHz  ... Read more

App - Mobile QRZ.com App for Android now in Beta Testing May 07, 2018 No comments

 The updates to QRZ’s Android App, formerly known as QRZDroid have been released and are available to those who are interested in trying it out.... Read more

DX Alert App ( Mobile ) October 20, 2015 No comments

DX Alert App Instead of being connected to a DX cluster directly you can use DX Alert to monitor the cluster for you and get notifications on your pho... Read more

CWSpeed IOS App – The fun and efficient way of learning morse code March 19, 2015 No comments

Description The fun and efficient way of learning morse code! Features: – Uses Koch’s training method (the most efficient known to date)... Read more

Amateur Radio Ringtone from NASA February 25, 2015 No comments

Download NASA Sounds Here’s a collection of NASA sounds from historic spaceflights and current missions. You can hear the roar of a space shuttl... Read more

DX Hunter – The amateur radio App for DX-enthusiasts June 02, 2015 No comments

DX Hunter – The amateur radio App for DX-enthusiasts Description DX-Hunter is an application for amateur radio operators, short wave listeners a... Read more

News W6NBC Wins the August QST Cover Plaque Award August 14, 2018 No comments

The winning article for the August 2018 QST Cover Plaque award is “A Novel Approach to Using Window Line” by John Portune, W6NBC. The QST Cover Plaque... Read more

New FCC Part 95 Personal Radio Services Rules Published in The Federal Register August 14, 2018 No comments

Reorganized and updated FCC Personal Radio Services (PRS) Part 95 rules have been published in The Federal Register. Among other things, the PRS cover... Read more

Storm Takes Down Antennas at Memorial Ham Station on Swedish-Norwegian Border August 14, 2018 No comments

The SJ9WL-LG5LG Morokulien memorial station on the border of Sweden and Norway is off the air after a large tree, brought down during a severe storm o... Read more

HAARP’s WSPR Research Campaign Yields Hundreds of Reports on 40 and 80 Meters August 13, 2018 No comments

Just-completed research at the High-Frequency Active Auroral Research Program (HAARP) transmitters in Gakona, Alaska, successfully took advantage of t... Read more

NIST FY 2019 Budget Would Eliminate WWV and WWVH August 11, 2018 No comments

The National Institute of Standards and Technology (NIST) FY 2019 budget request includes shutting down “NIST radio stations in Colorado and Hawaii” —... Read more

HDSDR VERSION 2.80 BETA RELEASED

Wed, 08/15/2018 - 12:12pm

HDSDR is a freeware Software Defined Radio (SDR) program for Microsoft Windows 2000/XP/Vista/7/8/8.1/10.

Typical applications are Radio listening, Ham Radio, SWL, Radio Astronomy, NDB-hunting and Spectrum analysis.

HDSDR (former WinradHD) is an advanced version of Winrad, written by Alberto di Bene (I2PHD).

After a long hiatus, development of HDSDR got going again in early2017 with versions 2.70 and 2.76, followed by 2.76a in March 2018. Now, version 2.80 is outin public beta, and there is every reason for HDSDR users to upgrade. The upgrade is a mix of new or enhanced functions, and a modest (as always) change to the graphical user interface (GUI).

I have talked with the team for the last year or so and sent a few suggestions which would improve my use of HDSDR. I’m happy to see some of them well taken care of, and otherchangeshave beenaddedtoo.Graphical User InterfaceIf we start off with the visual appearance,the lower left “Control Centre” if you like, has been rearranged a bit. For the first time since the Winrad days, the mode controls are different with the indicator “lights”moved below the text, allowing for smaller controls so the FreqMgr function could move up.

Also, the ExtIO function was moved to the F column to the left, renamed and assigned to the F8 key. Help/Update has been removed, but no worries, if you press F1 it’s still available. All this reshuffling opened room for two very useful additions: The Frequency Band selector, and most important of all in my view, the Frequency Step selector, which has moved away from its convoluted position within Options. Moreover, the Frequency Step (tuning step) function is now preassigned by band, so if you tune a SW broadcast band the default frequency or tuning step is 5 kHz. On MW, it’s 9 or 10 kHz depending on which ITU zone you have assigned in FreqMgr. One thing I particularly like with HDSDR is that the tuning steps are not mode-dependent.

Another newfeature is that during playback, frequency and mode are displayed together with the file data. Now why would you want that, with the information already available just above? It is because blind users are not able to see both the frequency and the running time simultaneously. By adding frequency to the same line, they can. Universal design

– fully integrated band management (ITU 1+2+3)
– FreqMgr: HFCC frequency list (import)
– FreqMgr: EiBi+HFCC FindMatch checks Time, AutoFindMatch
– band selection / frequency step on main window
– Misc option: Auto-LO
– Misc option: keep Tune when LO is changed
– Auto Band Zoom (Options -> Visualization -> RF)
– Mouse Wheel option “Zoom RF”
– Forwards button for WAV files
– WAV buttons << and >> operate without WAV file
  { left click: Band +/- } { right click: Tune +/- step }
– auto subdirectories for recording
– more options for digital mode application (Options -> DigiMode Settings)
– more command line options (-lo, -tune, -mode, -rec with recording time)
– drag and drop for wav files
– split for TX (SDR-TX only!)
– slow speed for AF display
– Autosave AF waterfall {CTRL+Shift+X}

(adsbygoogle = window.adsbygoogle || []).push({}); VHF New 23cm IARU Region 1 record claimed July 23, 2017 No comments

Terry M0VRL reports that on 14 July 2017 he completed a QSO of 2,662km, from IO70PO to IL28FC, with Pedro EA8AVI in the Canary Islands that breaks the... Read more

The first video from Yaesu FT-2D April 23, 2015 No comments

Yaesu FT-2D   Read more

Announcing the BTECH GMRS-V1 October 14, 2016 No comments

Announcing the BTECH GMRS-V1 We are excited to announce the most flexible GMRS radio, the BTECH GMRS-V1. The GMRS-V1 includes 23 modifiable channels f... Read more

AnyTone AT-D868UV dual-band VHF and UHF DMR portable October 07, 2016 No comments

  AnyTone AT-D868UV Today, Qixiang Electron Science & Technology Co., Ltd, the Chinese manufacturer that produces the AnyTone line of two-way... Read more

Kenwood TK-D200GE VHF DMR Portable with GPS, Display and Keypad February 24, 2015 No comments

    Kenwood TK-D200GE  Key Features TDMA DMR Digital Air Interface – 2 slot/1 carrier in 12.5kHz Complies with ETSI DMR Standard TS 10... Read more

Review BITX-40 On The Air – K7AGE February 02, 2017 No comments

“In this video, I do a bit of wiring and then get on the air and make some contacts during a contest.” The Raduino The new BITX40’s... Read more

DV4home New Software – DMR / D-Star crossmode, C4FM, Brandmeister, IPCS2 added January 30, 2017 No comments

“I’m currently testing a new software for the DV4home. The modifications included, the DMR+ complete masters list, the Brandmeister reflec... Read more

Alex Loop vs CHA-P-Loop vs Alpha Loop Whats best for you? K6UDA Radio Episode 33 November 04, 2016 No comments

http://www.alphaantenna.com The Alpha Loop http://chameleonantenna.com The CHA-P-Loop http://www.alexloop.com My Alex Loop Antenna http://www.elecraft... Read more

Heil HS2 Hand PTT switch for 2 radios with MFJ-1263 March 10, 2018 No comments

“In this video you will find information about the Heil HS2 handheld PTT switch that I use with my 2 Kenwood radios (TS-2000 and TS-990), thanks... Read more

Retevis RT82 Dual Band DMR Digital Two Way Radio at ML&S Overview August 07, 2017 No comments

    Retevis RT82 Description  RT82 is a dual band DMR radio  Frequency band:136-174 & 400-480MHz  10000 Contacts  IP67 Waterproof  Use T... Read more

Antenna SDR Receiver with a Slinky Antenna November 18, 2015 No comments

For years now Hams and Shortwave Listeners have been building antennas out of that great American toy: The Slinky. In this video we string two out to... Read more

The Alternative Multi-band Solution – Cobra UltraLite Antennas January 02, 2015 No comments

  Covers More Bands than a G5RV (Shorty). Goes up Fast, Easy on Trees. All Stainless Hardware Black Marine ABS Insulator Blocks Handles a Full kW... Read more

THE TILTED TERMINATED FOLDED DIPOLE – A PRACTICAL BUILDING GUIDE March 02, 2015 No comments

“THE TILTED TERMINATED FOLDED DIPOLE Recently, I have been experimenting with the Tilted Terminated Folded Dipole, a.k.a. TTFD, a.k.a. T2FD.  I... Read more

The Rotator Illuminator Kit December 27, 2014 No comments

  The Rotator Illuminator kit by Idiom Press is a three-LED replacement circuit for the incandescent lamp in Hy-Gain control boxes.  Buy this kit... Read more

Emergency Antenna Platform System (E-APS) – WC2FD November 02, 2015 No comments

  A system to facilitate emergency radio communications from parking lots using lamp posts as antenna masts. Designed and built by the kids of th... Read more

App - Mobile New iOS App Available for The ARRL Repeater Directory ® April 11, 2015 No comments

  The ARRL Repeater Directory ® — introduced this week for 2015-2016 — has a newly launched companion app for Apple® iOS® devices. iPhone®, iPad®... Read more

RFinder – The World Wide Repeater Directory now free trial on Android! November 09, 2015 No comments

In order to support the proliferation of third party app stores worldwide, we have now released RFinder on Android as trialware! Just go download it f... Read more

EchoLink for iOS version 2.10.18 is now available May 07, 2018 No comments

EchoLink for iOS version 2.10.18 is now available in the App Store. This is a 64-bit build that is fully compatible with iOS 10 and modern iOS devices... Read more

EchoLink App for IOS8 November 15, 2014 No comments

Description Please note: This app is for licensed Amateur Radio operators only. See www.echolink.org for more information. EchoLink for iOS provides a... Read more

AmsatDroid FREE – APP October 05, 2015 No comments

This software predicts future passes for amateur radio satellites for a specified location and period of time. Basic features: – Calculate passe... Read more

A Pair of Coronal Holes & a Probe: Solar Storm Shortie 08-14-2018

Tue, 08/14/2018 - 6:34pm

“Be sure to watch to the end for a Parker Solar Probe Dedication! aurora shows, especially at high latitudes. Two coronal holes are rotating through the Earth-strike zone, which means Earth will be preconditioned for activity! The news for amateur radio operators is not so great, as the last remaining bright region on the Earth-facing Sun rotates to the Sun’s backside out of view. Solar flux has dropped and we are back at poor levels for radio propagation on Earth’s dayside. Unfortunately, these conditions could easily continue over the next week or more. Learn the details of the coming solar storm, see why GPS users are smiling, and why “CW” for amateur radio operators may be the mode of choice.”

(adsbygoogle = window.adsbygoogle || []).push({}); Review Antenna Chameleon F-LOOP VS Chameleon P-LOOP October 19, 2016 No comments

“This is the long awaited Chameleon F-LOOP vs Chameleon P-LOOP review. In this video we go through the design and functionality of each antenna,... Read more

Icom IC-7300 vs K3s Elecraft [ Video´s ] April 11, 2016 No comments

Tested at night on 40m with QRM from BC stations. All controls set equal. Identical speakers. Antenna switched A/B. Keep in mind that I can fiddle wit... Read more

Unboxes the NEW Yaesu FT-891 September 23, 2016 No comments

Yaesu FT-891 Yaesu FT891 New, Exciting Yaesu Field Gear – HF/50MHz 100W All Mode Transceiver – FT-891 · Rugged construction in an ultra-compact... Read more

Debut of the Hytera AR482G DMR HT : Ham Radio 2.0: Episode 14 July 30, 2018 No comments

This is a new DMR HT from Hytera made for the Amateur Radio Community. In this episode I will show the menu of the radio and the CPS software, and key... Read more

Retevis RT82 Dual Band DMR Digital Two Way Radio at ML&S Overview August 07, 2017 No comments

    Retevis RT82 Description  RT82 is a dual band DMR radio  Frequency band:136-174 & 400-480MHz  10000 Contacts  IP67 Waterproof  Use T... Read more

Show More VHF The ARRL Repeater Directory (Pocket-size) March 24, 2015 No comments

  The ARRL Repeater Directory (Pocket-size) The best directory of frequencies for repeaters around the country!The ARRL Repeater Directory includ... Read more

BaoFeng UV-82HP (Camo) VHF/UHF April 13, 2016 No comments

BaoFeng UV-82HP WHAT MAKES IT UNIQUE? * It has 3 Power Levels (1, 5, 7 watt) * VFO/ MR (Frequency Mode) can be locked via software * The Dual Push-to-... Read more

Compact D-Star Transceiver, Icom ID-31 upgraded! August 10, 2017 No comments

Newly released handy transceiver ID-31PLUS for amateur radio which can enjoy long distance communication with D-STAR ® easily  Product name / model nu... Read more

How to win a VHF Contest – DR9A 2017 September 17, 2017 No comments

Read more

NEW Launch TYT DM-UVF10 DPMR Digital voiceWalkie Talkie VHF + UHF November 20, 2014 No comments

  TYT DM-UVF10 ,a dualdisplay, dual standby two-way radio,adopts high-technology and novel designDM-UVF10 adopts humanism design,making it smart... Read more

Show More Digital Modes A New FT8 with Rag Chew Abilities ( FT8CALL ) August 13, 2018 No comments

FT8 has taken over the airwaves as the digital communication mode for making QSOs over HF/VHF/UHF. The mode has been widely popular as the latest offe... Read more

Significant changes in store for FT8 and MSK144 with WSJT-X Version 2.0 July 30, 2018 No comments

WSJT-X co-developer Joe Taylor, K1JT, has announced that major changes are coming to the FT8 and MSK144 digital protocols when WSJT-X version 2.0 arri... Read more

Third Public Test of FT8 DXpediton Mode Deemed a Success May 09, 2018 No comments

The third public test of FT8 DXpedition Mode on May 5 is being called a success. The goal of the exercise was to simulate a rare DXpedition pileup on... Read more

Release: WSJT-X Version 1.9.0-rc4 April 29, 2018 No comments

Changes from WSJT-X Version 1.9.0-rc3 include the following: – Corrected a number of flaws in Fox and Hound behavior, FT8 DXpedition Mode... Read more

A New Spin on JT Alert HRD Logbook and WSJT X April 11, 2018 No comments

WSJT-X for rig control. There’s no need for HRD rig control to be running. Just HRD Logbook, WSJT-X and JT Alert. Read more

Show More News W6NBC Wins the August QST Cover Plaque Award August 14, 2018 No comments

The winning article for the August 2018 QST Cover Plaque award is “A Novel Approach to Using Window Line” by John Portune, W6NBC. The QST Cover Plaque... Read more

New FCC Part 95 Personal Radio Services Rules Published in The Federal Register August 14, 2018 No comments

Reorganized and updated FCC Personal Radio Services (PRS) Part 95 rules have been published in The Federal Register. Among other things, the PRS cover... Read more

Storm Takes Down Antennas at Memorial Ham Station on Swedish-Norwegian Border August 14, 2018 No comments

The SJ9WL-LG5LG Morokulien memorial station on the border of Sweden and Norway is off the air after a large tree, brought down during a severe storm o... Read more

HAARP’s WSPR Research Campaign Yields Hundreds of Reports on 40 and 80 Meters August 13, 2018 No comments

Just-completed research at the High-Frequency Active Auroral Research Program (HAARP) transmitters in Gakona, Alaska, successfully took advantage of t... Read more

NIST FY 2019 Budget Would Eliminate WWV and WWVH August 11, 2018 No comments

The National Institute of Standards and Technology (NIST) FY 2019 budget request includes shutting down “NIST radio stations in Colorado and Hawaii” —... Read more

Show More

 

W6NBC Wins the August QST Cover Plaque Award

Tue, 08/14/2018 - 5:50pm

The winning article for the August 2018 QST Cover Plaque award is “A Novel Approach to Using Window Line” by John Portune, W6NBC. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the September issue today.

Source:ARRL

Equipment A $38.99 RTL-SDR with 100 Khz – 1.7 GHz coverage April 07, 2016 No comments

RTL-SDR  100Khz-1.7GHz Full Band UV HF RTL-SDR USB Tuner Receiver/ R820T + 8232 Ham Radio 100% Brand New And High Quality Using the RTL2832 idle chann... Read more

NooElec NESDR Nano 2 – 25MHz-1750MHz December 03, 2015 No comments

Product Description   Brand new re-design! The NESDR Nano 2 are custom-made by NooElec for SDR applications, though they will still function as qualit... Read more

Icom IC-9100 Review [ Video ] April 10, 2015 No comments

  George Thomas, W5JDX, of Ham Nation and AmateurLogic.tv provides an in depth review of the Icom  IC-9100       Read more

RM Italy BLA 600 HF/6M 500 Watts Amp & HBF 1000 1KW HF/6M Low Pass Filter in the Dayton 2016 May 22, 2016 No comments

RM Italy   Read more

The Racal RA3712 Professional Receiver November 11, 2015 No comments

Racal RA3712 “The Racal RA3712 is a relatively hard to come by professional receiver. It was widely used by the Royal Navy, but certainly found... Read more

Show More VHF Vertex VXD-720 May 22, 2015 No comments

Vertex VXD-720 Clear, Quality Communications 512 Channels and 512 Groups 5 Watts VHF / 4 Watts UHF VHF: 136 – 174 MHz UHF: 403 – 470 MHz; 450 – 512 MH... Read more

Baofeng DM-5R: Manuals and Software September 21, 2016 No comments

Baofeng DM-5R DMR Digital Radio VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power 21CM Dual Band Antenna 8-Level Stepped F... Read more

HYS TC-MAUV11 Dual Band with DTMF June 13, 2015 No comments

HYS TC-MAUV11 Product Detail Basic Info Model NO.: TC-MAUV11 Type: Vehicle Mouted Function: Mobile Radio Place of Origin: Fujian, China (Mainland) Bra... Read more

Baofeng UV9R Plus Waterproof – Dual Band FM VHF UHF December 18, 2017 No comments

Baofeng UV9R Plus Product parameters Frequency Range: VHF 136-174,UHF 400-520MHz Theoretical communication distance: 10 km Power: 15W Battery: Polymer... Read more

VERO China New Arrival: 40 Watts Dual Band Mobile Radio VR-6900 With Band Scope and APRS Display June 13, 2018 No comments

  Firmware upgrade remote VR-6900 can update firmware remotely, fix some bugs when find it   Optional APRS VR-6900 support the optional APRS... Read more

Show More Review WELLBROOK ALA1530S+ LOOP ANTENNA – Review February 06, 2015 No comments

“I have been a keen shortwave listener since 1970 and have had many receivers and antenna types during this time. Currently I have two wire ante... Read more

YAESU FT 891 Unpacking and First Look – Waters & Stanton Ltd October 14, 2016 No comments

FT-891 HF+50Mhz ALL MODE MOBILE TRANSCEIVER The FT-891 HF All Mode Mobile Transceiver once again continues Yaesu‘s legacy for legendary receiver... Read more

IC-7610 Technical Report Vol. 2 (English Version) May 31, 2018 No comments

IC-7610 Technical Report, which explains the RF direct sampling system and RMDR used in the IC-7610.   You can find the Technical Report here:  http:/... Read more

TYT MD-2017 Dual Band DMR and MFJ-849 Digital SWR Watt Meter BY K6UDA July 02, 2017 No comments

“Curiosity got the best of me. I finally ordered a DMR handheld radio and picked the new TYT MD-2017 UHF/VHF DMR Analog unit. I’ve never u... Read more

Review of QRP Labs QCX QRP Radio November 30, 2017 No comments

“Unboxing, building and using the QRP Labs QCX single-band, 5-watt QRP radio. This advanced technology radio borrows ideas from software-defined... Read more

Show More App - Mobile My LoTW – Free app for iOS and Android June 08, 2016 No comments

My LoTW is a viewer app for ARRL’s Logbook of the World.   With My LoTW, you can: – View all the QSOs you have submitted to LoTW. –... Read more

RUMlogNG2Go for iOS version 3.3 now available February 03, 2017 No comments

Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.3 of his RUMlogNG2Go logger for the iPhone and iPad.  RUMlogNG2Go can be do... Read more

Free App Allows Blind Hams to Work PSK31 April 05, 2017 No comments

A free, new app — Accessible Digipan — has been released that allows blind hams to operate PSK31. The download includes the app, audio tutorials, deta... Read more

ATNO Alert – App for DXer´s August 10, 2016 No comments

This app was developed to help HAMs during DX operation, cluster viewing and award tracking. Main Features: * Send alerts to user devices – Our backgr... Read more

Ham Radio Prefixes – Android App October 12, 2014 No comments

  Enter a call sign and get immediately all the geographical informations (country, ITU zone, CQ zone, GMT).   Google Play: https://play.goo... Read more

Show More

New FCC Part 95 Personal Radio Services Rules Published in The Federal Register

Tue, 08/14/2018 - 2:16pm

Reorganized and updated FCC Personal Radio Services (PRS) Part 95 rules have been published in The Federal Register. Among other things, the PRS covers the Family Radio Service (FRS), General Mobile Radio Service (GMRS), and the Citizens Band Radio Service (CBRS).

The revised rules allot additional FRS channels and increase the power on certain FRS channels from 0.5 W to 2 W. FRS channels are in the 462.5625 – 462.7250 MHz range.

Effective September 30, 2019, it will be illegal to manufacture or import handheld portable radio equipment capable of operating under FRS rules and under other licensed or licensed-by-rule services. The FCC no longer will certify FRS devices that incorporate capabilities of GMRS capabilities or of other services. Existing GMRS/FRS combination radios that operate at power levels of less than 2 W ERP will be reclassified as FRS devices; existing GMRS/FRS radios that operate above that power level will be reclassified as GMRS devices, requiring an individual license.

Radios that can transmit on GMRS repeater input channels will continue to be licensed individually and not by rule.

Once the new rules are effective, CBers will be allowed to contact stations outside of the FCC-imposed — but widely disregarded — 155.3-mile distance limit.

Source:ARRL

(adsbygoogle = window.adsbygoogle || []).push({}); Antenna Acom HF antenna V101 April 24, 2015 No comments

  Acom HF antenna V101 FEATURES The V101 – 03AT antenna system consists of the Broadband Inverted Vee Dipole Antenna V101 and the automatic... Read more

HyEndFed 5 band 80/40/20/15/10 Antenna April 07, 2015 No comments

  HyEndFed 5 band for 80,40, 20, (15) and 10 meter. Max. Power : 200 watt PEP. Length : 23 meter. Enclosure : Polycarbonate IP67, 100% UV resista... Read more

Moonraker Ltd Whizz Loops 13-428 November 13, 2017 No comments

Moonraker Ltd Whizz Loops are compact QRP portable loops that are perfect for attaching directly to your ft-817 or other QRP transceiver. These nifty,... Read more

Sky Ham Radio End Fed Antenna , Resonant 40 – 20 – 10 December 30, 2014 No comments

Today many Hams encounter big problems when they want to install a good antenna. Many live in an apartment building, or in an area where the rules do... Read more

A Poor Man Antenna Analyzer by GM3VLB December 15, 2014 No comments

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Storm Takes Down Antennas at Memorial Ham Station on Swedish-Norwegian Border

Tue, 08/14/2018 - 8:43am

The SJ9WL-LG5LG Morokulien memorial station on the border of Sweden and Norway is off the air after a large tree, brought down during a severe storm on August 10, caused extensive damage to the station’s antennas. According to one report, the station’s 100-foot tower was broken into pieces after the tree fell across three tower guys. That pulled the support structure toward the station building, but a third set of guys on the other side of the tower held and kept it from damaging the structure. The tower has been up for at least a decade.

“This is a unique place, because the radio shack is exactly on the border, and the users are obliged to use the call signs alternatively — one day SJ9WL and the next day LG5LG,” Henryk Kotowski, SM0JHF, told ARRL. Kotowski has operated from the station in the past, and a photo he shot at Morkulien appeared on the cover of the October 1996 issue of QST.

“This was a memorial station devoted to SM5WL and LA5LG,” Kotowski explained. “They both promoted Amateur Radio and supported disabled hams. Swedish and Norwegian hams took over the abandoned border checkpoint house 50 years ago and made a joint club station there.” He said the area is now devoted to recreation and includes a peace monument. With funds from station rentals, the association Amateur Radio in Morokulien (ARIM) maintains and manages the station, which may be the only one located on an international border in what ARIM calls a “ham state.” The station is designed to accommodate individuals with disabilities. The name Morokulien is a combination of the words for fun — moro in Norwegian, and kul in Swedish — plus a suffix indicating “in one place.”

Antennas on the support structure included an eight-element log periodic for HF plus a 6-meter Yagi and antennas for VHF and UHF. The antenna structure was topped with a VHF-UHF vertical. The tower also supported dipoles for the lower bands.

“Sweden has been haunted this summer by drought, wildfires, and, recently, heavy storms and rainfall,” Kotowski recounted.

The cottage in Morokulien had been booked for the weekend, but the reservation was canceled. This fall, clubs on both sides of the international border are planning a joint 50th anniversary celebration.

Source:ARRL

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HAARP’s WSPR Research Campaign Yields Hundreds of Reports on 40 and 80 Meters

Mon, 08/13/2018 - 11:42am

Just-completed research at the High-Frequency Active Auroral Research Program (HAARP) transmitters in Gakona, Alaska, successfully took advantage of the WSPR digital protocol and the Weak Signal Propagation Reporter Network (WSPRnet) on July 30 through August 1. University of Alaska Fairbanks (UAF) Space Physics Group researcher and HAARP Chief Scientist Chris Fallen, KL3WX, told ARRL that the research — HAARP’s fourth research campaign under management of the University of Alaska Fairbanks — went well.

“My ‘citizen science’ experiments were funded by the National Science Foundation and were conducted for approximately 30 minutes at the end of each campaign day,” Fallen told ARRL. “They consisted of 2-minute transmissions using the WSPR digital mode in the 40- and 80-meter bands, with a 2-minute off period between transmissions.” He said HAARP transmitted in full-carrier, double-sideband AM because it does not have SSB capability. HAARP operated under its Part 5 Experimental license, WI2XFX, with Special Temporary Authority (STA) from the FCC to transmit on amateur bands.

“I systematically varied the HAARP transmission parameters, such as gain, net power, beam direction, and polarization, to see how they affected the reception reports collected in the WSPRnet.org database,” Fallen said. “During the 3 days, we gathered more than 300 confirmed reports of signal strength and location from nearly 100 unique participants throughout Canada and the US.”

Fallen said the spots, collected along with the corresponding HAARP transmission parameters, are available online, (1) and (2). He said the spreadsheet at the second link is editable by the public, “specifically by citizen scientists who want to manually add their spot or other interesting data analysis,” he added. “In this sense, the experiment continues.”

He said that HAARP’s low-elevation transmissions on 40 meters resulted in the greatest number of spots. “The 40-acre phased array antenna at HAARP, with its vertically oriented normal, is not designed for low-elevation transmissions, and so these directional experiments most likely included significant grating lobes in the opposite directions,” Fallen explained. “The most distant spot was located at grid EL96xi, near Boca Raton, Florida, reported by W1NEJ, from a distance of 6,154 kilometers. Interestingly, HAARP was aimed in the magnetic west direction during that spot. Those grating lobes!” A grating lobe occurs when the signal is steered too far with a phased array and the main beam reappears on the opposite side.

Fallen said a few Alaskans participated in the test, and all spots from there were on 80 meters, with the exception of a single 40-meter spot reported by KL4IU, located near Fairbanks. “KL4IU used a 30 MHz turnstile antenna recycled from the old Poker Flat Research Range imaging riometer, essentially a phased array HF receiver, that was destroyed by lightning many years ago,” he said.

HAARP and the Arecibo Observatory in Puerto Rico are planning to conduct heating campaigns this fall, Fallen noted, although not at the same time, as experimenters are shared.

Funding agencies for the recent HAARP research campaign included the National Science Foundation, Air Force Research Laboratory, and the Office of Naval Research, with experimenters from the Naval Research Laboratory, Air Force Research Laboratory, Eastern Michigan University, Cornell University, Virginia Tech, and the University of Alaska Fairbanks.

HAARP is holding its annual open house on August 25.

Source:ARRL

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A New FT8 with Rag Chew Abilities ( FT8CALL )

Mon, 08/13/2018 - 8:45am
FT8 has taken over the airwaves as the digital communication mode for making QSOs over HF/VHF/UHF. The mode has been widely popular as the latest offering in K1JT’s WSJT-X application. FT8 stands on the shoulders of JT65, JT9, and WSPR modes for weak signal communication, but transmits much faster with only slightly reduced sensitivity. While FT8 is an incredibly robust weak signal mode, it is designed heavily to take advantage of short band openings on HF/VHF/UHF and only offers a minimal QSO framework. However, many operators are using these weak signal qualities to make successful QSOs on the HF bands where other modes fail.

The idea with FT8Call is to take the robustness of FT8 mode and layer on a messaging and network protocol for weak signal communication on HF, similar to FSQ and Fldigi with a keyboard-to-keyboard interfac

Read more on the design inspiration here: https://github.com/jsherer/ft8call

 

For release announcements, join the FT8Call mailing list here: https://groups.io/g/ft8call

Notice

FT8Call is a derivative of the WSJT-X application, restructured and redesigned for keyboard-to-keyboard message passing. It is not supported by nor endorsed by the WSJT-X development group. While the WSJT-X group maintains copyright over the original work and code, FT8Call is a derivative work licensed under and in accordance with the terms of the GPLv3 license. Source code can be found in this public repository: https://bitbucket.org/widefido/wsjtx/

Install

FT8Call currently comes in a variety of builds.

 

  • Desktop Linux (64-bit x86_64, Ubuntu 18.04 AppImage) v0.4.2
  • Desktop Linux (64-bit x86_64, deb) v0.4.2
  • Desktop Linux (32-bit i386) v0.4.2: [not yet available]
  • Raspbian Stretch (armv7, AppImage) v0.4.2
  • Raspbian Stretch (armv7, deb) v0.4.2
  • Windows 10 (win32_64) v0.4.2
  • Mac OSX (x86_64) v0.4.2: [not yet available]

 

For the most up-to-date listing of build downloads, check the FT8Call release announcements and FT8Call Release Downloads Wiki. Of course, you are always free to take a look at the source code as well!

 

The application is distributed using the WSJT-X installer on Windows. For Linux, it is distributed as an AppImage, a single file executable that can be run portably on your Linux desktop or RaspberryPi, as well as a .deb. AppImage is an untraditional approach to distributing Linux software so if you’ve never dealt with an AppImage before, all you need to do is:

 

  1. Download the AppImage for your platform
  2. Set the AppImage file to be executable
  3. Run the AppImage file
  4. Profit!

 

NOTE: Until the general release of FT8Call, development versions will only carry a 10 day lifespan. After expiration, you’ll be required to upgrade to the latest version of the application.

Operation

If you’ve used Fldigi or WSJT-X before, you’ll feel right at home with FT8Call. The premise is that FT8Call changes the encoding structure of FT8 modulated messages, breaking up long freetext messages into multiple transmission frames / cycles.

 

Most operators testing the application can be found +/- 4-8kHz from the standard FT8 frequencies. It is essential to avoid the main FT8 frequencies, as that will cause confusion among WSJT-X operators. Here are some frequencies to use instead:

 

  • 160m:  1.838 MHz //  2 kHz below FT8
  • 80m:  3.580 MHz //  7 kHz above FT8
  • 40m:  7.080 MHz //  6 kHz above FT8
  • 30m: 10.130 MHz //  6 kHz below FT8
  • 20m: 14.080 MHz //  6 kHz above FT8
  • 17m: 18.104 MHz //  4 kHz above FT8u
  • 15m: 21.080 MHz //  6 kHz above FT8
  • 12m: 24.920 MHz //  5 kHz above FT8
  • 10m: 28.080 MHz //  6 kHz above FT8
  •  6m: 50.300 MHz // 13 kHz below FT8

 

You can use the mailing list Sked Chat or the Facebook group to schedule on other frequencies with test operators.

Band Activity

Band activity is displayed on the left. Callsigns you’ve heard CQing are on the right. Clicking either of those will move your RX/TX offset to that audio frequency (QSY).

There is a waterfall at the bottom of the screen to show you the signals in your audio passband.

  Messages

The top yellow text box shows you messages that are either on the frequency offset you’re on or who have directed a message to you (they sent a message that included your callsign).

You type into the white box on the bottom to prepare a message for transmission. Normal FT8 character restrictions do not apply! The extended character set includes all printable uppercase ASCII (A-Z 0-9 Space ./?+-`~!@#$%^&*()_=[]\{}|;’:”,<>). The message structure is variable encoded, so the most common characters take the least amount of space, and special characters take longer to send.

As you type your message you’ll see the send button display the number of frames (15 second transmit cycles) it’ll take to send your complete message. All you have to do is click send (or hit enter) to start transmitting on the next interval. As each frame is transmitted one after the other, the button will update with the number of frames left.

Because of this special variable encoding, messages in FT8Call cannot be decoded by WSJT-X. The same is also true, WSJT-X messages will not be shown in FT8Call.

 

Messages come in two forms:

  1. standard FT8Call free text messages
  2. directed FT8Call messages
  Standard Messages

Standard messages are freetext messages that do not start with a callsign or a directed command. These messages will only print at another’s station location if they align their receive offset within 10Hz of your transmit offset. This is operation similar to other keyboard-to-keyboard digital modes, like Olivia, RTTY, and PSK.

 

Directed Messages

Directed messages are special FT8Call transmissions that automatically prefix your message with your callsign, similar to how FSQCall operates. Directed messages are useful for communicating in that you do not have to include your callsign in your message, allowing you to use more of the transmission frame(s) for actual message text, as well as alerting the recipient that a message was sent to them. As long as you are in the same passband, you do not have to be on the same frequency offset to receive a directed message.

 

To send a directed message, all you need to do is include the callsign of the receiving station as the first word in the message. There is a special “ALLCALL” callsign that you can use to send the message to anybody who is able to receive your message. Some examples:

 

  • DR4CNK HELLO HOW ARE YOU JIM?
    • Will be sent as:   KN4CRD: DR4CNK HELLO HOW ARE YOU JIM?
  • ALLCALL HELLO NET PSE QSY 14300
    • Will be sent as:   KN4CRD: ALLCALL HELLO NET PSE QSY 14300

 

You’ll notice a special character at the end of the message, ala ⌁. It is a symbol to indicate the End of Transmission, the last frame of the message has been transmitted with nothing else to follow. This means you get a visual indicator that the transmission is done and you can begin transmitting a reply.

 

There are special directed messages that you can send to stations to have them automatically reply if they have AUTO enabled. They are comprised in the form of [CALLSIGN][COMMAND].

 

Available commands:

 

  • ? – What is my SNR?
  • @ – What is your QTH (station location)?
  • & – What is your QTC (station message)?
  • % – What is your station power?
  • $ – What stations are you hearing? (Top 4)
  • |message – Please ACK and retransmit the following message
    • The message is retransmitted by the receiving station  verbatim with the addition of “DE [CALLSIGN]” added to the end of the message…meaning you do not need to add it to your message.
  • !message – Please display this message in a alert dialog and ACK if acknowledged
  • #message – Please ACK if you receive this message in its entirety
  • AGN? – Have the station automatically retransmit their last message

 

Examples:

 

If I wanted to ask DR4CNK what his QTH was, I’d send:

  • DR4CNK@
    • And he would respond with a directed message back to me: “DR4CNK: KN4CRD MY QTH IS SOUTH OF FRANCE”, automatically if AUTO reply is enabled.

 

You can also use “ALLCALL” with the “?” command and all stations that receive your message will respond on a random frequency offset, example:

 

  • ALLCALL?
    • And all stations who heard your message would respond with your signal strength:
      “DR4CNK: KN4CRD SNR +21”

 

If I wanted to transmit a message to OH8STN through DR4CNK, I could use the retransmit command and send:

 

  • DR4CNK|OH8STN HELLO JULIAN!
    • During retransmit, at each hop the originating sender’s call is appended to the message.
    • The command above would be received by OH8STN, they would send an ACK back, then retransmit the message, like so:
      • My station sends:
        KN4CRD: DR4CNK|OH8STN HELLO JULIAN!
      • DR4 station acks and retransmits:
        DR4CNK: KN4CRD ACK
        DR4CNK: OH8STN HELLO JULIAN! DE KN4CRD

 

If I wanted to alert a message to LB9YH through OH8STN through DR4CNK, I could send:

 

  • DR4CNK|OH8STN|LB9YH!HEY KEN!

 

You can also mix and match standard and free text messages, but most of the time you won’t need to.

 

BCN – Beacons

There is an automated beacon that transmits on an interval once turned on (BCN button on the top right). This interval can be changed in the settings. There’s no protection against the beacon transmitting over a message you’re receiving, so you’ll have to keep an eye on it. All beacons are transmitted on your current frequency unless it is not free, in which case a random (unused) frequency free offset between 250Hz-1500Hz.

The intent of beaconing is not to report on propagation…it’s to help populate your heard list (on the right) so you know who’s likely to be reachable so you can try to make contact. You can’t work them if you can’t “hear” them.

 

AUTO – Automatic Replies

While auto is enabled, your software will automatically respond to directed queries, like “?”, “@”, and “&”. When auto is turned off, FT8Call will buffer responses in the send message textbox until you are ready to send the replies manually.

 

LOG

There’s a log button in the top right. You’ll have to fill out all of that information manually since the QSO is freetext and not automated.

 

SPOT

FT8Call will report callsigns you hear (or your callsign if heard by other stations) to PSKReporter.com under the “FT8CALL” mode.

 

MACRO

There are a few quick macro buttons for entering common messages. You can edit these in the settings window. Just be mindful that long macros will take a while to send.

 

Frequencies

If you want to transmit on a non-standard frequency (recommended) you can either modify the frequencies list in the settings, or you can type directly into the band dropdown box in the top left of the screen.

ips & Tricks
    • An example QSO:
      • KN4CRD: CQCQCQ EM73
      • DR4CNK: KN4CRD SNR +01 GOOD SIGNAL ⌁
      • KN4CRD: DR4CNK SNR -12 TU 4 FT8CALL RIG IS KX2 5W DIPOLE

 

  • DR4CNK: KN4CRD RR -22 FB KX3 100W VERT ⌁
  • KN4CRD: DR4CNK RR FB REALLY ENJOYING THE CHAT MODE WITH LONG MESSAGES. BUT HEY LET’S TRY A RELAY
  • … (and on, and on, if you want)

 

    • KN4CRD: DR4CNK 73
    • KN4CRD: CQCQCQ EM73
  • You do not need to include your callsign when initiating your directed replies. They will be prefixed to your message automatically.
  • You do not have to reply on the same frequency offset as the caller. But, if you’re calling another station off their frequency, you do need to include their callsign at the beginning of the the message so it is directed to them and will show up in their yellow directed activity window.
  • Directed messages pack as much data as standard FT8 frames. The following examples are all 1 transmit cycle long
    • Example:
      • KN4CRD/P: CQCQCQ EM73 (1 transmit frame)
      • KN4CRD: ALLCALL? (1 transmit frame)
      • DR4CNK: KN4CRD SNR +15 (1 transmit frame)
      • DR4CNK: KN4CRD AGN? (1 transmit frame)
  • For replying to a station’s CQ, double click their call in the call activity window, then either choose a directed command or type a message to them:
    • DR4CNK: KN4CRD SNR +12
    • DR4CNK: KN4CRD YES
    • DR4CNK: KN4CRD NO
    • DR4CNK: KN4CRD RR
    • DR4CNK: KN4CRD 73
    • DR4CNK: KN4CRD HELLO MY FRIEND GREAT TO HEAR YOU!
  • You can send freetext at any time! That’s what FT8Call is for:
    • HI JIM TU 4 CALL UR -12 INTO ATLANTA BTU DE KN4CRD (4 transmit frames)
  • It might be helpful to learn some of the morse code prosign/abbreviations and psk31 abbreviations:
Frequently Asked Questions
  • What are the random three (or six) characters at the end of my retransmit and alert commands?
    • These are a checksum for the message added to ensure all of the message frames were delivered correctly before retransmitting / alerting. If received in its entirety by the receiving station, these checksums will not be displayed to them.
  • Beacons transmit back to back (30 seconds). Why? Is this normal?
    • Yes. They currently transmit for 30 seconds to compensate for band fading.
    • In the future, beacons that transmit for 30 seconds may be able to offer extra information during the beacon (things like compound callsigns, extra long grid locators for telemetry, station power, etc)
  • You said that all printable ASCII characters can be used. Do some take more space than others?
    • Yes. The characters that are sent in the messages are variable encoded, ranging from 3 to 19 bits in length based on their probability of being used in a sentence. The most common characters take the least amount of space, allowing us to send more than 13 characters per transmission cycle on average.
    • Example: Space and E are only 3 bits in length. You could send about 22 (!!) of them in a single transmission. Whereas a character like { is 14 bits in length, you could only send 4 of those. (But really, how frequently do you use that character?)
    • Here are some examples of phrases that could be sent in one 15 second transmit cycle:
      • EEEEEEEEEEEEEEEEEEEEEEE (23 characters)
      • I HAVE EATEN A SHOE (19 characters)
      • WHICH WAY TO OHIO (17 characters)
      • NEVER HAVE I EVER (17 characters)
      • TU UR 599 INTO (14 characters)
      • Etc
  • How fast does FT8Call transmit?
    • FT8Call uses the same 15-second transmission cycle as FT8. What is different is that due to the variable encoding of the characters, FT8Call can transmit up to 23 characters per transmission frame. For average sentences, FT8Call can pack words very tightly, at around 10-15WPM.
    • Example:
      • “WE HOLD THESE TRUTHS TO BE SELF-EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS.”
        • This phrase is 35 words. It would take 13 transmission cycles to send (3 minutes 15 seconds). That is just under 11 WPM.
      • CW has a neat way of calculating WPM, timing how long it takes to transmit the word PARIS. In FT8, PARIS is encoded into 24 bits (4.8 bits/character). Each transmission cycle can pack up to 69 character bits. That equates to about 11.5 WPM. (69/24=2.875 words / 15seconds * 4)
Bug Reports

You can send bug reports to Jordan Sherer (KN4CRD) at kn4crd@gmail.com or drop notes in a bug report document: https://docs.google.com/document/d/1pUIajbza_rmZ8dgKt6HPMHyYlzGImsXc8-jOET96yEQ/edit?usp=sharing

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SmartSDR for iOS v2.6.2 Now Available

Sun, 08/12/2018 - 10:11am

FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App Store.

This App requires a FlexRadio Systems FLEX-6000 Signature Series Software Defined Radio (SDR) Device. However, the App also contains a FlexRadio Simulator (Demo Mode) that provides an approximation of the App’s features so you can evaluate this App even without owning a FLEX-6000 SDR.

This version includes the following changes and improvements:

■ Local Headsets Monitoring

Normally the MON button only works remotely (on the Radio). Now, local Headset Microphone input can also be monitored. You can turn on and adjust the monitor Volume from the Settings screen.

■ DX Cluster filters

Filters have been improved. It is now possible to filter not only by Band and Mode but also by Comment, CQ-Zone, ITU-Zone, Call Prefix and Country.

The Mode filter now also supports FT8, JT65, JT9 and WSPR.

■ Spot Details on Panadapter

Now, you can double-tap on a Spot on the Panadapter to get Details about the Spot including QRZ/HamQTY lookup. Tapping once still adjusts the active Slice to the spot.

■ Support for the following languages: Spanish, French, Italian, Netherlands, Japanese, Chinese (Traditional and Simplified)

Please note, if you are not happy with a translation, just change back to English (in the Settings of the App) and/or contact me to help and improve the translations.

■ Listen only mode added

This mode allows, for example, to use Speakers or Headphones in Stereo mode if they don’t support Stereo along with Microphone usage.

■ Band Zoom feature added

For this, two new buttons have been added under the left BT menu.

■ Possibility to use a hardware keyboard

If you have a hardware keyboard attached (Bluetooth or iPad Pro Keyboard) you can now press Space to toggle PTT, use the , or . keys to change the frequency or press Buttons 1 … 9 to activate Voice Macros.

■ Several MIDI Controller fixes and improvements

The CMD-Micro and Hercules controllers are now working way better than before (TNX Doug!).

A new sensitivity setting has been added to reduce the Wheel sensitivity independent from the Step value.

■ Improvements for all Controllers (Midi,Flic,PowerMate)

Now, SplitMode, Band Zoom, Bandwidth, WNB as well as NB values and WNB values and even global Profiles can be selected.

■ Button to squeeze / expand the Voice Macro button bar and CWX Window

Now, you can squeeze the Macro button bar and CWX Window to save space.

■ Transverter “LO Error” now in MHz not Hz

■ CW Straight Key and Paddle improvements

Now, keying is no longer interrupted when moving the finger.

The CWX screen can now be moved further down to cover the TabBar so they can’t be accidentally hit.

■ Fixes and improvements of the +/- Split function

The RX Slice remains Active slice after enabling Split mode.

The RX Slice becomes again TX Slice after disabling Split mode.

■ Some Slice Flag Changes

S-Meter is now Colored.

When transmitting, the S-Meter changes to Level meter on the TX Slice.

This App is still backward compatible to Version 1 of SmartSDR or can run with the latest SmartSDR version, including SmartLink.

SmartSDR for IOS v2.6.2 is available free of charge.

 

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NIST FY 2019 Budget Would Eliminate WWV and WWVH

Sat, 08/11/2018 - 4:07pm

The National Institute of Standards and Technology (NIST) FY 2019 budget request includes shutting down “NIST radio stations in Colorado and Hawaii” — in other words, WWV and WWVH. Radio amateurs, HF listeners, and others around the world routinely make use of the time and frequency standard signals, which also include propagation information. NIST said eliminating funding currently “supporting fundamental measurement dissemination” would include putting WWV and WWVH off the air for a saving of $6.3 million. The overall NIST FY 2019 budget request is $127 million, which, the agency said, is a net decrease of $49 million from FY 2018 levels.

“The proposed reductions will allow NIST to consolidate and focus on narrower core [fundamental] measurement programs while meeting budget levels,” the agency said in its FY 2019 budget summary. “NIST will focus on basic research while reducing funding for efforts applying some of its breakthroughs into new measurement applications.

The FY 2019 proposed budget cuts developed earlier this year came to light via Tom Witherspoon, K4SWL, who maintains The SWLing Post website, after a number of viewers called it to his attention. He posted an article on his blog.

“I’ve always considered WWV and WWVH to be the heartbeat of the shortwaves here in North America — a constant, timely companion and brilliant gauge of HF propagation,” Witherspoon wrote. I assumed both stations would be some of the last to go silent on the shortwaves.”

NIST said other “illustrative” cuts in the FY 2019 budget include:

  • $3.5 million for Lab to Market, which seeks to accelerate technology transfer from federal laboratories
  • $6.6 million in environmental measurements projects across NIST laboratories, including work measuring the impact of aerosols on pollution and climate change, and gas reference materials used by industry to reduce costs of complying with regulations
  • $5.8 million eliminating the NIST Greenhouse Gas (GHG) Measurements program, including Urban Dome research grants to advance the direct measurement of GHG emissions on the scale of cities or regions.
  • $6.7 million in forensic science, reducing the program size to $7.3 million by prioritizing measurement science in the NIST labs and eliminating program management functions and external grants for the Organization of Scientific Area Committees for Forensic Science and the Forensic Science Center of Excellence 
  • $4.1 million in R&D targeting application of NIST quantum breakthroughs to applied measurement needs, including temperature and atmospheric gas metrology

“I find this budget request very disappointing,” Witherspoon said with respect to the proposed elimination of WWV and WWVH. “Let’s hope, somehow, this does not come to fruition.” He said The SWLing Post would be tracking and posting any new developments.

Source:ARRL

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