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Former ARRL Headquarters Staffer Ellen White, W1YL, is Krenkel Medalist

ARRL News - Tue, 05/07/2019 - 2:54pm

[UPDATED 2019-05-07 @ 2318 UTC] ARRL Headquarters staff alumna and Life Member Ellen White, W1YL, is the sole US radio amateur to in 2019 to be awarded the Russian E.T. Krenkel Medal, a prestigious award granted to individuals and organizations for outstanding global contributions to Amateur Radio. In 2018, QST was awarded a Krenkel Medal.

First licensed in 1946, White had already learned Morse ...

Categories: Amateur radio news

Former ARRL Headquarters Staffer Ellen White, W1YL, is Among Krenkel Medalists

ARRL News - Tue, 05/07/2019 - 2:54pm

ARRL Headquarters staff alumna Ellen White, W1YL, is among those awarded the Russian E.T. Krenkel Medal, a prestigious award granted to individuals and organizations for outstanding global contributions to Amateur Radio. An ARRL Life Member, White is one of 28 Amateur Radio operators to receive the award this year.

First licensed in 1946, White had already learned Morse code in high school, and...

Categories: Amateur radio news

Building a 4:1 balun

QRZ Now - Tue, 05/07/2019 - 12:49pm

“I’m working on an antenna project and needed a 4:1 balun. Believe it or not, I’ve never built one before. Extremely easy to make. “

VHF Icom IC-9700 First Impression, Comparision with IC-7400 April 06, 2019 No comments

Icom IC-9700 Specifications General Frequency coverage 144.000–148.000, 430.000–450.000, 1240.000–1300.000 MHz Mode SSB, CW, RTTY, AM, FM, DV, DD Numb... Read more

Trial for transatlantic VHF QSO this weekend January 29, 2016 No comments

Taken from Facebook from IZ7FLS Nico Hi everybody.. News from the South of the World.. As some of you surely remember, Pieter v51pj created a work gro... Read more

Wouxun KG-UVD1P August 29, 2015 No comments

Wouxun KG-UVD1P Description of Features 1. 1750 Hz Burst Tone 2. DTMF Encoding Function 3. Working Mode :vhf tx-uhf rx or uhf tx-vhf rx can be set fre... Read more

Software N1MM+ Logger – SSB signal detection and QSY via keyboard May 07, 2019 No comments

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JTAlert 2.13.4 – for FT4 May 01, 2019 No comments

Provides several audio and visual alert types based on decoded Callsigns within JT65-HF and WSJT-X. Audio and visual alerts for several alert conditio... Read more

Reported Bugs in WSJT-X 2.1.0-rc5 May 01, 2019 No comments

“We are aware of the following bugs or anomalies in release candidate 5 of WSJT-X 2.1.0. There is no need to provide further feedback on any of... Read more

Digital Modes FT4 vs FT8 – A new mode, what’s the difference? May 01, 2019 No comments

The FT4 Protocol for Digital Contesting by K1JT   Read more

New FT4 Mode with more 20K spots in few your hours realese April 29, 2019 No comments

    Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting  The FT4 Protocol for Digital Contesting by K1J... Read more

FT4 Video presentation by K1JT April 24, 2019 No comments

See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start tran... Read more

Antenna Introducing the SteppOut Vertical High-performance 1/4-wave HF Antenna From 14 to 30 Mhz By Bill, AA4BQ August 05, 2015 No comments

From price to performance, the SteppOut Vertical is a true 1/4-wave vertical for 20-10m and for under $50! Let’s have some fun. The end product... Read more

Long Range Wi-Fi Dish Antenna by AB9IL December 27, 2015 No comments

Long Range Wi-fi Dish Antenna THIS INEXPENSIVE WI-FI DISH ANTENNA OUTPERFORMS ALL OTHERS! Presented here is a project showing how to convert common sa... Read more

W4OP Loop Antenna January 12, 2017 No comments

It seems that more and more, amateurs are facing increasingly strict HOAs. This antenna is not designed for the backpacker, but rather for the QRP ama... Read more

Equipment Expert Electronics SunSDR2-MB1 Transceiver March 17, 2015 No comments

  The DUC/DDC transceiver SunSDR-MB1 – this is a new generation of amateur radio. Transceiver combines a classic design, accumulated many d... Read more

ICOM IC-DPR30 September 21, 2016 No comments

ICOM IC-DPR30 Smallest and lightest ever ※ 1 , built-in antenna, Bluetooth ® support. New release of the transceiver IC-DPR30 that can be used to styl... Read more

CloudIQ – The next chapter in #connected software defined radios June 01, 2015 No comments

  CloudIQ   The Cloud-IQ is the latest high performance software defined receiver from RFSPACE. The Cloud-IQ offers two modes of operation.... Read more

News ARRL Field Day Site Locator is Live, Promotional Material Available May 06, 2019 No comments

ARRL Field Day is June 22 – 23. See the May issue of QST, page 85, for the Field Day announcement. The Field Day site locator is now up and running, a... Read more

Hamvention® 2019 UPDATE with Michael Kalter, W8CI and Tim Duffy, K3LR – May 1, 2019 May 03, 2019 No comments

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Coronation station HS10KING/mm on geostationary satellite May 02, 2019 No comments

To mark the Coronation of King Vajiralongkorn Bodindradebayavarangkun(King Rama X) from May 4-6, 2019 the Radio Amateur Society of Thailand under the... Read more

The post Building a 4:1 balun appeared first on QRZ Now - Amateur Radio News.

ARRL Teachers Institute Application Deadline Extended

ARRL News - Tue, 05/07/2019 - 11:11am

The deadline to apply for the 2019 ARRL Teachers Institute program has been extended until Friday, May 10. As part of educational outreach to schools through our Education & Technology Program, ARRL each summer offers multiple sessions of the Teachers Institute on Wireless Technology, an expenses- paid professional development seminar.

The Teachers Institute has provided teachers at all grade le...

Categories: Amateur radio news

N1MM+ Logger – SSB signal detection and QSY via keyboard

QRZ Now - Tue, 05/07/2019 - 8:59am

VHF What’s Inside The Retevis RT97 Portable Repeater?! February 09, 2019 No comments

Retevis RT97 Portable Mobile Analog Mode Repeater  Features: 1, Customizable: The TX and RX frequencies can be customized between UHF (400-470MHZ)  2,... Read more

Yaesu FT-4XR / FT-4VR : ANNOUNCEMENT March 19, 2018 No comments

Yaesu FT-4XR FM DUAL BAND TRANSCEIVER Range: 136-174, 400-480MHz Antenna Connector: SMA Power Source: 12.6 VDC Nominal, Battery Operated Exclusively R... Read more

VHF /UHF / SHF Distance Records March 14, 2015 No comments

  DX Records VHF /UHF / SHF Distance Records Claimed North American Distance Records as of June 4, 2014. List maintained by Al Ward, W5LUA. Send... 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

Review Building a 4:1 balun May 07, 2019 No comments

“I’m working on an antenna project and needed a 4:1 balun. Believe it or not, I’ve never built one before. Extremely easy to make.... Read more

Yaesu FTDX101D First Look May 06, 2019 No comments

Hybrid SDR Configuration In addition to the Narrow band SDR receiver, that boasts overwhelming Basic Performance, the Hybrid Configuration Digital Pro... Read more

Icom IC-7300 HF/6m Radio Walkthrough May 03, 2019 No comments

“Here’s a walkthrough of the Icom IC-7300 radio. This very popular transceiver is a capable, very modern software-defined radio with a tra... Read more

Yaesu FT-991a VS Icom IC7300 Comparison May 02, 2019 No comments

Read more

(adsbygoogle = window.adsbygoogle || []).push({}); Antenna Which is better: Vertical or Dipole? November 16, 2017 No comments

Vertical or dipole? Which is better for you? Antenna modeling software (EZNEC+) helps answer the question!  Read more

End-Fed Antennas – The Doctor Will See You Now! ARRL April 27, 2017 No comments

 End-Fed HF antennas are becoming increasingly popular, especially for limited space applications, but how well do they really work? In this episode,... Read more

What’s In The Box? DX Commander All Band Vertical April 04, 2019 No comments

Read more

472kHz Antenna Calculator June 01, 2016 No comments

This tool calculates the antenna capacitance and radiation resistance of small vertical monopoles at 475 kHz. It is by no means a replacement for ante... Read more

Equipment 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

Ten-Tec PM1 QRP November 05, 2015 No comments

Description The MX1, AA1, VO1, and TX1 modules are wired into a band-switching 80-40 meter CW transceiver. Front panel controls: On-off, Transmit-Rece... Read more

Linear Amp Gemini HF-1K 1.8-50MHz 1kW Solid State Linear Amplifier October 19, 2015 No comments

Solid State Linear Amplifier 1kW Output High Spectral Purity 460KHz* to 50MHz All Bands Touch Screen Full Colour LCD Display Full QSK Fully automatic... Read more

The Foxx-3 Transceiver – 80m, 60m, 40m, 30m, 20m versions available September 04, 2015 No comments

  Connections are as follows: antenna via 50 ohm BNC, power via 2 pin 0.1″ header, headphones via 3.5mm mono or stereo jack plug or 2 pin h... Read more

The post N1MM+ Logger – SSB signal detection and QSY via keyboard appeared first on QRZ Now - Amateur Radio News.

Union County ARES Digital Simplex Net

Union County ARES Connect - Mon, 05/06/2019 - 9:25pm

Monday night Union County ARES Digital Simplex net on 145.60

Union County ARES Digital Simplex Net

Union County ARES Net - Mon, 05/06/2019 - 9:25pm

Monday night Union County ARES Digital Simplex net on 145.60

Union County ARES Group Net

Union County ARES Connect - Mon, 05/06/2019 - 9:00pm

9pm Monday night Union County ARES net on -145.35 Tone 127.3

Union County ARES Group Net

Union County ARES Net - Mon, 05/06/2019 - 9:00pm

9pm Monday night Union County ARES net on -145.35 Tone 127.3

F3400D F5400D Series – Radios Digitales IDAS

QRZ Now - Mon, 05/06/2019 - 7:31pm

  • Small, Slim and Smart
  • High-Resolution Color LCD
  • Multiple Languages
  • License Key Upgrade
  • NXDN Trunking Upgrade
  • DES/AES Encryption with OTAR
  • OTAP and OAA
  • Built-in Bluetooth®
  • Digital Voice Recording
  • Motion/Stationary Detection Sensors
  • GPS Receiver
  • USB Port for PC Connection
  • Transparent Data/ Text Message
  • ANC (Active Noise Canceling)
  • Audio Equalizer
  • Voice Announcement
  • Vibration Alert
  • AquaQuake Draining Function
  • Multiple Controller Configurations

(adsbygoogle = window.adsbygoogle || []).push({}); Antenna OL7M installed monster G0KSC 28MHz system December 28, 2015 in: Antenna No comments

After one year in the making, the contest team at OL7M have finished the construction and installation of 4 x 6 element 28MHz G0KSC OWA Yagis. This incredible video takes you through this amazing project from concept to completion, it is wo... Read more

News ARRL Field Day Site Locator is Live, Promotional Material Available May 06, 2019 in: News No comments

ARRL Field Day is June 22 – 23. See the May issue of QST, page 85, for the Field Day announcement. The Field Day site locator is now up and running, and so far more than 430 sites already are in the database. To find a Field Day site near y... Read more

Recent Posts Amateur Radio Volunteers Responding to Louisiana Flooding Catastrophe August 15, 2016 No comments

Amateur Radio volunteers are responding to help, after flooding of historic proportions struck parts of Louisiana and Mississippi over the weekend in... Read more

K6TU PROPAGATION generates predictions using the VOACAP engine December 27, 2014 No comments

K6TU.NET generates predictions using the VOACAP engine automated by software developed by Stu K6TU. The idea behind K6TU.NET was to remove the learnin... Read more

FCC Announces Plans for Partial Government Shutdown January 19, 2018 No comments

The FCC has issued a brief statement regarding its plans in the event of a partial government shutdown, which could start on January 20. “In the event... Read more

Russian WW MultiMode Contest October 29, 2014 No comments

The organizer of contest is the Russian Digital Radio Club. The Russian contest on radio short waves communicationsRussian WW MultiMode Contest by usi... Read more

DX0P Pagasa Island AS-051 March 20, 2015 No comments

  DXpedition Team 14 – 20 April 2015 asDX0P. DU1BP, DU2BOQ, DU7RJA, DV1JM,  K6BF, K6BG, WA6LOS, WE6DX, WJ1P, WW6CP   Team Leader:  WA6LOS  RIGS:... Read more

Recent Posts 3Y0Z – ABORTED – Bouvet Island DXpedition February 03, 2018 No comments

2000 UTC 3 February 2018 During the last 72 hours we continued to experience the high winds, low clouds, fog, and rough seas that have prevented helic... Read more

FCC Satellite Related Filings October 31, 2018 No comments

FCC Satellite Related Filings For easier navigation of US FCC Satellite related filings Luke Rehmann has built an RSS feed of the FCC’s ELS and IBFS s... Read more

MD/ON6KX Isle of Man June 04, 2015 No comments

Isle of Man – From June 5 till June 15th active on Isle of man (IOTA EU-116). Special activiation for Isle of Man TT races ! Will be active on S... Read more

Nominations Open for AMSAT-NA Board of Directors May 09, 2017 No comments

It’s time to nominate candidates for the upcoming AMSAT-NA Board of Directors election. Four directors’ terms expire this year — Barry Baines, WD4ASW;... Read more

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

All about repeaters. More Technician exam questions. Read more

The post F3400D F5400D Series – Radios Digitales IDAS appeared first on QRZ Now - Amateur Radio News.

DX Voice from Mount Athos Monk Apollo, SV2ASP, SK

ARRL News - Mon, 05/06/2019 - 2:30pm

Mount Athos' best-known radio amateur, Monk Apollo, SV2ASP, died on May 5 after complications resulting from cancer. He was 64. Monk Apollo was essentially the lone DX voice from Mount Athos, the 20th most-wanted DXCC entity, where he operated from his Orthodox Monastery of Docheiariou. Born into a large family in western Greece, he became a monk in 1973, eventually joining the ascetic monaster...

Categories: Amateur radio news

ARRL Field Day Site Locator is Live, Promotional Material Available

QRZ Now - Mon, 05/06/2019 - 1:25pm

ARRL Field Day is June 22 – 23. See the May issue of QST, page 85, for the Field Day announcement. The Field Day site locator is now up and running, and so far more than 430 sites already are in the database. To find a Field Day site near you, enter your town and state in the “Location or Call Sign” box at the upper left. Listings also are available by state or Canadian province.

To add a site, visit the Add Field Day Station page. Information on promoting Field Day is available. Also, visit the Field Day social media page for information on promoting your Field Day operation via Facebook, Twitter, Instagram, LinkedIn, and YouTube.

Source:ARRL

 

VHF Dynascan P-72 December 19, 2018 No comments

Dynascan P-72 Double band 20W equipment, with a very small size.  Double simultaneous reception. Microphone connection or micro-speaker on the side.  ... Read more

Two Repeaters One Antenna Feed Line June 21, 2017 No comments

“We had an opportunity recently to provide a unique duplexer system. The customer needed a single antenna feed line for two repeaters. This solu... Read more

F-600A Dual mode FDMA DPMR analog digital walkie talkie with GPS in-bulit June 29, 2015 No comments

F-600A Quick Details Place of Origin: Fujian, China (Mainland) Brand Name: Creation Walkie Talkie Model Number: F-600A Digital Walkie Talkie Type: Han... Read more

How To Program the Juentai JT-6188 / Zastone MP-300 Mobile Radio October 28, 2015 No comments

Ham Radio 2.0: Episode 20 As a follow up to Episode 5, this video shows you how to program a repeater channel into the radio and save it into the memo... Read more

Review Yaesu FTDX101D First Look May 06, 2019 No comments

Hybrid SDR Configuration In addition to the Narrow band SDR receiver, that boasts overwhelming Basic Performance, the Hybrid Configuration Digital Pro... Read more

Icom IC-7300 HF/6m Radio Walkthrough May 03, 2019 No comments

“Here’s a walkthrough of the Icom IC-7300 radio. This very popular transceiver is a capable, very modern software-defined radio with a tra... Read more

Yaesu FT-991a VS Icom IC7300 Comparison May 02, 2019 No comments

Read more

ICOM IC-7610 [4K VIDEO] May 01, 2019 No comments

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Antenna HF Portable Vertical Antenna MP1R SuperWhip July 09, 2015 No comments

The MP1R is an MP1B with an SW1 SuperWhip Ruggedized Antenna Whip on the top of it. New! Free! Every MP1R Super Antenna now comes with a free FG1 Freq... Read more

ICOM AH-710 Folded Dipole Antennas AH-710 April 16, 2015 No comments

Wire Antenna, Assembled, Multi-Band, Non-resonant, 150 W, UHF Male, PL-259, 80.3 ft. Length, Each Wire Antenna Band Wire Antenna Frequency 160 meters... Read more

Kite antenna for 160-10m – Oceania DX Contest January 16, 2015 No comments

“Testing a kite antenna for HF during the Oceania DX Phone Contest on Oct 3, 2010 at Tania Park, Balgowlah Heights, Sydney. The Rokkaku kite eas... Read more

ALFASPID BIG RING-01 ANTENNA ROTATORS (ROHN 45 / 55) March 16, 2015 No comments

  Heavy Duty, Super Accurate (Under 1 Degree Resolution) Tower Mounted Ring Rotator for Rohn 45 / 55 Towers – NEW FOR 2015! o you want to g... Read more

News ARRL Field Day Site Locator is Live, Promotional Material Available May 06, 2019 No comments

ARRL Field Day is June 22 – 23. See the May issue of QST, page 85, for the Field Day announcement. The Field Day site locator is now up and running, a... Read more

Hamvention® 2019 UPDATE with Michael Kalter, W8CI and Tim Duffy, K3LR – May 1, 2019 May 03, 2019 No comments

Read more

Coronation station HS10KING/mm on geostationary satellite May 02, 2019 No comments

To mark the Coronation of King Vajiralongkorn Bodindradebayavarangkun(King Rama X) from May 4-6, 2019 the Radio Amateur Society of Thailand under the... Read more

ARRL’s Free Exam Review for Ham Radio Updated May 02, 2019 No comments

ARRL Exam Review for Ham Radio has been updated in advance of the release of the ninth edition of The ARRL General Class License Manual for Ham Radio... Read more

The post ARRL Field Day Site Locator is Live, Promotional Material Available appeared first on QRZ Now - Amateur Radio News.

Mobile Event App will Help Dayton Hamvention Visitors to Navigate the Show

ARRL News - Mon, 05/06/2019 - 12:36pm

Dayton Hamvention® 2019, host of the ARRL National Convention, will mark the debut of a free mobile event app to help attendees navigate the extensive Hamvention program, activities, and exhibits using their smartphones or tablets. A collaborative effort between ARRL and Dayton Hamvention, the app was developed by TripBuilder Media™. ARRL Convention and Event Coordinator Eric Casey, KC2ERC, has...

Categories: Amateur radio news

Yaesu FTDX101D First Look

QRZ Now - Mon, 05/06/2019 - 12:07pm

Hybrid SDR Configuration

In addition to the Narrow band SDR receiver, that boasts overwhelming Basic Performance, the Hybrid Configuration Digital Processing with Direct Sampling SDR permits inclusion of the superb Real-Time Spectrum Scope. *300Hz and 1.2kHz roofing filters (Optional)

Narrow band SDR

Crystal Roofing Filters produce phenomenal Multi-signal characteristics

The Down Conversion type receiver construction is similar to the FTDX5000. The first IF frequency is 9 MHz, and a low noise figure dual gate MOS FET, D-quad DBM (Double Balanced Mixer) with excellent intermodulation characteristics, is implemented in the mixer section. Narrow band SDR configuration makes it possible to use the narrow bandwidth crystal roofing filters that have the sharp shape factor. This achieves the amazing multi-signal receiving performance when confronted with the most challenging on-the-air interference situations.

In addition to IF down-conversion, The FTDX101 receivers implement the YAESU legendary powerful RF Front-Ends, outstanding low-noise Local Oscillators, roofing filters with sharp shape factors, and the latest circuit configurations that we carefully selected for all circuit elements. Consequently, the proximity BDR (Blocking Dynamic Range) in the 14 MHz band reaches 150 dB or more, the RMDR (Reciprocal Mixing Dynamic range) reaches 123 dB or more, and the 3rd IMDR (third-order Intermodulation Dynamic Range) reaches 110 dB or more.

Narrow band SDR + Direct Sampling SDR

Emphasizes Excellent Receiver Performance and Hybrid SDR Functionality

Digital Processing Generated Real-Time Spectrum Scope

The Narrow band SDR receiver removes strong out of band signals by using a superheterodyne method, with narrow band roofing filters which significantly attenuates unwanted out of band frequency components, and the wanted signals within the passband are converted to digital by a high resolution 18-bit A/D converter and sent to an FPGA (Field Programmable Gate Array) for signal processing.

The FT DX 101 series uses a hybrid SDR configuration that integrates a direct sampling SDR receiver in order to view the entire band status in real time, with the excellent dynamic receiver performance achieved by the narrow band SDR receiver circuit.

By using this hybrid SDR design, the overall performance of the entire FTDX101 receiver system is improved. The Direct Sampling SDR driving the real time Spectrum display with its large dynamic range enables the weakest signal to be observed on the display when it appears and the Narrow Band SDR enables that signal to be selected, filtered and then decoded.

If there is powerful AM station near your location or in challenging operating situations where there are a lot of strong signals in the band from Contests, DX-pedition activities, those signals outside the pass band can be attenuated by the very effective roofing filter in the front stage of the A/D converter. This reduces the signal load on the A/D converter which is a bottleneck from the viewpoint of the entire receiving circuit. Therefore, interference is reduced making it is possible to continue to operate even under such difficult conditions.

Truly Quiet and Clear Reception

Ultra Low-Noise Local Oscillator System; 400MHz HRDDS (High Resolution Direct Digital Synthesizer)

The C/N ratio (signal-to-noise ratio) of the local signal injected into the 1st mixer is an important factor in improving the proximity multi-signal characteristics. The local circuit of the FTDX101 series uses the 400 MHz HRDDS (High Resolution Direct Digital Synthesizer) method that was used in the FTDX5000. This circuit configuration is different from a generic PLL that generates a local signal. Creating the local signal by directly dividing the high frequency of 400 MHz, the theoretical PLL lockup time becomes zero, and C/N deterioration by the lockup time does not occur.

The significant improvement of the C/N characteristic by directly dividing the frequency contributes dramatically to reduce the noise in the entire receiver stage, and also improve the BDR (Blocking Dynamic Range) characteristic in strong signals proximity.

In the FTDX 101 series, in addition to the adoption of the 400 MHz HRDDS, the latest circuit configurations that reduced noise, and carefully selected components are used. As a result, the phase noise characteristic of the local signal achieves an excellent value of -150 dBc/Hz or less at 2kHz separation.

This low-noise, high-quality local signal contributes significantly to the multi-signal and the ultra-close signal proximity (such as a few hundred hertz) characteristics.

Unparalleled -70 dB Maximum Attenuation VC-Tune

Newly developed VC-Tune RF Preselector with high precision stepping motor drive provides outstanding attenuation characteristics

Frequency automatic adjustment RF Preselector VC-Tune

In the FTDX101 series, a next-generation RF preselector VC-Tune further improves the high-performance RF μ (mu)-Tuning system adopted in FTDX9000. Using a remarkable miniaturization design while producing unparalleled characteristics and maximum attenuation of -70 dB.

Newly developed VC-tune circuit drives a variable capacitor (VC) with a high precision stepping motor and achieved remarkable miniaturization over μ-tuning system.

VC-Tune has no annoying steps or switching relays by continuously covering the band with a variable capacitor driven by a high-precision stepping motor following the frequency. The conventional preset method of switching coils and capacitors with relays is eliminated.

When there are multiple strong signals in the band, press the “VC TUNE” key and turn the MPVD (Multi-Purpose VFO Outer Dial) ring on the VFO dial to activate the high-precision stepping motor to adjust the variable capacitor. Fine tune to the optimum point that attenuates the strong signal in the band while operating the VFO dial.

VC-Tune stores the last tuning point for each band, so when broadcast-like signals are periodically transmitted on the same frequency, that frequency can always be attenuated by setting the VC-Tune once.

The Highest Transmit Signal Purity

High-Quality transmission with outstanding phase noise characteristics

Transmit Final Stage produces the Highest Signal Purity

The excellent C/N characteristics provided by the 400MHz HRDDS (High Resolution Direct Digital Synthesizer) used in the local oscillator circuit also contributes significantly to the transmitter section. In a generic circuit, noise or distortion may occur depending on the circuit configuration and the components, up to the final stage that is producing the transmit signal, even if the local signal is of high quality. In the FTDX101, a thorough examination of each element up to the final TX stage was made. The clock that divides and distributes the local signal from the 400MHz HRDDS circuit to each block, as well as the FPGA, D/A converter, the final power amplifier etc., and carefully selecting the latest circuit configurations to improve the C/N characteristics of the entire transmitter block. The transmit signal of the FTDX101 is directly generated from a 16-bit D/A converter without passing through a mixer circuit, therefore distortion and noise are significantly suppressed.

As a result, high-quality local signal characteristics are maintained without degradation to the final stage, and the transmission phase noise characteristics achieve -150 dBc/Hz at 2kHz separation. FTDX101 transceiver user will appreciate the finest performance with a high-purity transmission signal.

New Generation Scope Display 3DSS

Intuitively grasp changes in the strength of the signals

Newly developed 3DSS (3-Dimentional Spectrum Stream) system

in addition to a conventional Waterfall display

7-inch TFT Color Touch Panel Display

Size: 7-inch Wide

Resolution: 800 x 480 pixels

ABI (Active Band Indicator) & MPVD (Multi-Purpose VFO Outer Dial)

Deliver Superior Operability and Visibility plus Introduce Numerous Functions

Front Panel Design Emphasizes Solid Superior Touch and Operability

Primary important operation functions such as the Main VFO dial, VC-TUNE, WIDTH/SHIFT are arranged near the center of the pane for easy access.

Band select keys are placed as a row of ABI (active band indicator) at the top of the VFO dial, with your operating efficiency and comfort.

Even with a Large 7-inch Touch Panel Display, the panel layout emphasizes quick visibility and operability as a First Priority.

ABI (Active Band Indicator)

ABI is arranged as the band select key in the horizontal a row at the top of VFO dial.

When the band selected as MAIN Band, the LED indicates in white, and when the band selected by SUB band, the LED indicates in blue. At the status of transmission, the LED turns red so you can instantly confirm which VFO is transmitting.

In addition, since the orange LED lights up when you press and hold the band key, you can use it to display a band that has an antenna connected or to display a band operated in DX-pedition mode as a memo. Below the band key is a key for selection between transmission and reception of the MAIN and SUB band, and below that, there is a switching key for using the VFO knob on the MAIN or SUB tuning, so, even when the operating split using both MAIN and SUB bands at the same time, the band control can be performed smoothly, and so tuning the wrong band by mistake is reduced.

MPVD (Multi-Purpose VFO Outer Dial)

The MPVD is a large high-grade aluminium multifunctional ring around the outside of the VFO dial. The ring allows control of SUB VFO frequency dial, VC-TUNE, Clarifier and C/S (custom select function). The MPVD is a handy dial that allows you to adjust important functions in ever-changing HF communications without taking your hand off the VFO. The ring has the traditional Yaesu outstanding smooth and solid feeling when used.

PC Remote Control Software to Expand the Operating Range

Even from a distance, Dual Band-Scope Available Comfortable Operation utilizing the advantage of Hybrid SDR

Remote operation connected to LAN or Internet

PC control software performed remote operation of the transceiver from a remote location via the LAN or the Internet is available. (Requires optional external LAN unit)

In remote operation, in addition to the transceiver basic operation, it is compatible with DUAL-BAND scope and versatile displays, enabling comfortable operation. Also, you can enjoy various usages such as monitoring the band condition on a large display at a place away from the shack by connecting to a home LAN.

By communicating of Transmit/receive voice, RF scope, AF scope and CAT command to the transceiver, band status monitor by scope display, various filter settings, interference reduction function etc., can be easily set from PC, and possible to perform comfortable communication.

(adsbygoogle = window.adsbygoogle || []).push({}); VHF Baofeng UV-5RX3 Handheld Triband Radio August 21, 2018 No comments

UV-5RX3 is a compact, ergonomically hand fit HT, which balances cost, functionality and reliability. It provides real 5 watts in the frequency range o... Read more

Introducing Icom’s IC-A25NE Next Generation Airband Radio March 14, 2018 No comments

Icom is pleased to launch a new advanced 8.33 kHz handportable radio to its airband range. The IC-A25NE is the latest development in airband radio tec... Read more

Baofeng For Dummies: UV5R+ HAM Radio Tutorial August 05, 2015 No comments

Baofeng Watch in HD! Today I show you how I use my HAM radios to listen in to local police, fire and EMS. Also handy for receiving weather radio and t... Read more

What Frequency Do I Use On 2 Meters (144MHz )? September 03, 2015 No comments

You’ve just purchased your first handheld transceiver and have been chatting with both old and new friends around town on the 2 Meter band. There are... Read more

Equipment Expert Electronics SunSDR2-MB1 Transceiver March 17, 2015 No comments

  The DUC/DDC transceiver SunSDR-MB1 – this is a new generation of amateur radio. Transceiver combines a classic design, accumulated many d... Read more

TAJFUN 1000 50 MHz – 1KW November 13, 2014 No comments

    Description TAJFUN 1000 is small, lightweight but robus LDMOS Power Amplifier Freqency Coverage: 50 MHz Operating Mode: FM, CW, SSB, DIG... Read more

Fifine Condenser Microphone K669B Review/Test April 19, 2019 No comments

Plug and play USB recording microphone with 5.9-Foot USB Cable included for computer PC laptop that connects directly to USB port for record music,com... Read more

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(adsbygoogle = window.adsbygoogle || []).push({}); Antenna Portable Antenna Build by K6UDA January 19, 2016 No comments

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Read great article from VE3VN – 40 Meters 4-element Wire Yagi : Read more

Inac AH-1430 (20, 17, 15, 12, 10 m band) – Antenna December 14, 2014 No comments

  AH-521, is a halo antenna of small size but high performance. Supports an RF level between 140 and 210 W. Covers bands used between 12 and 30 M... Read more

Digital Modes FT4 vs FT8 – A new mode, what’s the difference? May 01, 2019 No comments

The FT4 Protocol for Digital Contesting by K1JT   Read more

New FT4 Mode with more 20K spots in few your hours realese April 29, 2019 No comments

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FT4 Video presentation by K1JT April 24, 2019 No comments

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Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week April 23, 2019 No comments

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The post Yaesu FTDX101D First Look appeared first on QRZ Now - Amateur Radio News.

Support ARRL When Shopping for Mother’s Day

ARRL News - Mon, 05/06/2019 - 11:42am

Mother’s Day is Sunday, May 12. If you’re looking for the perfect gift, shop at AmazonSmile and choose American Radio Relay League Inc. (ARRL) as your charity of choice. With every purchase you make at AmazonSmile, Amazon will make a contribution to ARRL. This helps the League to extend its reach in public service, advocacy, education, technology, and membership.

Make Mom smile, get her somethin...

Categories: Amateur radio news

Chameleon Emcomm IIIP Antenna – Antenna, Portable, 160M-10M

QRZ Now - Mon, 05/06/2019 - 11:02am

CHAMELEON ANTENNA EMCOMM-III Portable HF Antenna is specially designed for short to long range portable and man-pack HF communications. The EMCOMM III Portable antenna is ideal for hiking, backpacking, and both tent and Recreational Vehicle (RV) camping. It is also highly suitable for military, government agencies, non- governmental organizations (NGOs), Military Affiliate Radio System (MARS), Civil Air Patrol (CAP), Amateur Radio Emergency Service (ARES) / Radio Amateur Civil Emergency Service (RACES), Salvation Army Team Emergency Radio Network (SATERN), and amateur radio operators (hams) involved in field communication and disaster preparedness.

The EMCOMM III Portable antenna is configurable to facilitate Near-Vertical Incident Sky wave (NVIS) communication and will support most Automatic Link Establishment (ALE), frequency-hopping, and spread- spectrum modes and operations. An antenna tuner or coupler may be required for in some instances. The EMCOMM III Portable antenna can be deployed by the operator in the field in less than 15 minutes, using almost any available support, with no masts or guying required.

The EMCOMM III Portable antenna is comprised of a matching transformer, a 73 foot antenna wire on a line winder, and a 25 foot counterpoise – making a highly portable and effective HF antenna system.

 

CHAMELEON ANTENNA EMCOMM-III Portable HF Antenna Specifications:
– Frequency: 160M – 10M (dependent upon tuner)
– Power: 100W SSB or 50W CW
– Length: 73′ + 25″ Copper Clad KEVLAR PTFE (Teflon) (-70°C to 150°C) wire
– Weight: 1.5 Lb.

The EMCOMM-III Portable HF Antenna system consists of:
1 X CHA EMCOMM III matching box
1 X 73′ Copper Clad KEVLAR Wire (Radiator)
1 X 25′ Copper Clad KEVLAR Wire (Counterpoise)

 

(adsbygoogle = window.adsbygoogle || []).push({}); News ARRL Field Day Site Locator is Live, Promotional Material Available May 06, 2019 No comments

ARRL Field Day is June 22 – 23. See the May issue of QST, page 85, for the Field Day announcement. The Field Day site locator is now up and running, a... Read more

Hamvention® 2019 UPDATE with Michael Kalter, W8CI and Tim Duffy, K3LR – May 1, 2019 May 03, 2019 No comments

Read more

Coronation station HS10KING/mm on geostationary satellite May 02, 2019 No comments

To mark the Coronation of King Vajiralongkorn Bodindradebayavarangkun(King Rama X) from May 4-6, 2019 the Radio Amateur Society of Thailand under the... Read more

Equipment The Siru Innovatios SDR20 multi-touch portable SDR June 05, 2015 No comments

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YouKits HB1B upgrade January 06, 2015 No comments

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Automatic Semiconductor Analyser April 16, 2016 No comments

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(adsbygoogle = window.adsbygoogle || []).push({}); Software JTAlert 2.13.4 – for FT4 May 01, 2019 No comments

Provides several audio and visual alert types based on decoded Callsigns within JT65-HF and WSJT-X. Audio and visual alerts for several alert conditio... Read more

Reported Bugs in WSJT-X 2.1.0-rc5 May 01, 2019 No comments

“We are aware of the following bugs or anomalies in release candidate 5 of WSJT-X 2.1.0. There is no need to provide further feedback on any of... Read more

SDRuno V1.31 Release April 09, 2019 No comments

“We are pleased to announce the release of v1.31 of SDRuno. This release contains a number of bug fixes, functional enhancements and other chang... Read more

App - Mobile 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

New APP for digital QST March 25, 2019 No comments

Apple has released a new app for digital QST (version 5.1) readers that use that platform. A long-standing problem involved the inability of some Appl... Read more

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The post Chameleon Emcomm IIIP Antenna – Antenna, Portable, 160M-10M appeared first on QRZ Now - Amateur Radio News.

An introduction to QOscar 100

QRZ Now - Mon, 05/06/2019 - 10:24am

Noel Matthews, G8GTZ, Dave Crump, G8GKQ and Phil Crump, M0DNY gave a presentation at AGM 2019 on Qatar Oscar 100, the geostationary amateur transponder on the Es’hail-2 commercial satellite.

 

QOscar 100 was launched in February 2019 and has seen stations making contacts across a third of the globe on the narrow band and wide band DATV transponders.

The presentation slides are now available to download (33-page/3.06MB PDF) and include a brief history of the project, an overview of equipment required to operate Oscar 100 and an introduction and demonstration of the web SDR and spectrum monitor—which allow you to listen to stations on the narrow band segment using only a standard web browser.

There’s also a recording of the presentation on the AGM 2019 proceedings pageunder Listen to AGM 2019—play the afternoon recording and the presentation starts 20 minutes and 41 seconds in.

Source: RSGB

(adsbygoogle = window.adsbygoogle || []).push({}); Equipment STEMlab 122.88-16 SDR kit basic – REDPITAYA February 23, 2019 No comments

REDPITAYA – Tailored for HF+50MHz SDR & other RF applications – Comes with two 16 bit ACDs 50 ohm inputs; 14 bit DACs 50 ohm outputs... Read more

Kenwood ProTalk LT PKT-23 Pocket-Sized Business Two Way Radio January 08, 2016 No comments

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VHF EI3KD works Cape Verde on 144 MHz to set new Region 1 DX record August 06, 2018 No comments

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Koch Morse Trainer Pro – Android App January 12, 2015 No comments

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The post An introduction to QOscar 100 appeared first on QRZ Now - Amateur Radio News.

A New Episode of ARRL Audio News is Now Available!

ARRL News - Fri, 05/03/2019 - 1:49pm

Listen to the new episode of ARRL Audio News on your iOS or Android podcast app, or online at http://www.blubrry.com/arrlaudionews/. Audio News is also retransmitted on a number of FM repeaters. Click here and then scroll down to see the list.

 

 

Categories: Amateur radio news

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