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Three BIRDS Constellation CubeSats Delivered to ISS for Orbital Deployment

QRZ Now - Tue, 04/23/2019 - 7:11pm

A Cygnus resupply mission to the International Space Station (ISS) on April 11 also delivered three CubeSats of the BIRDS-3 constellation and three other CubeSats. The BIRDS-3 constellation is a project of students at the Kyushu Institute of Technology. The additional CubeSats include Swiatowid, KrakSat, and EntrySat.

All BIRDS-3 CubeSats are of the same design and have been coordinated to operate on a common downlink frequency of 435.375 MHz. Each will transmit a CW beacon and 9.6 k GMSK telemetry. The CubeSat deployer in the ISS Kibo module will deploy the BIRDS-3 CubeSats at a later date.

The BIRDS-3 constellation includes CubeSats from three countries: They are Nepal’s first satellite, NepaliSat-1; Uguisu from Japan, and Sri Lanka’s first satellite, Raavana-1. The primary mission of the BIRDS constellation is to provide ciphered short messages via its 435.375 MHz beacon, giving the opportunity for the Amateur Radio community to decipher the messages using a publicly available key on the BIRDS-3 website. Operators able to successfully decipher the message will be recognized on the BIRDS-3 website and receive a BIRDS-3 QSL card.

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In addition to their primary mission, BIRDS-3 CubeSats will conduct remote data collection based on low-powered LoRa modulation to demonstrate remote data collection and processing aboard a CubeSat to, for example, monitor water levels in flood-prone areas. The LoRa remote station will operate at 433 MHz for Sri Lanka and Nepal and at 920 MHz for Japan. Data collected will be posted on the BIRDS-3 website. Radio amateurs contributing to receiving the processed data will receive a QSL card showing the nature of data collected.

BIRDS-3 will also carry an imaging mission for public outreach and awareness and Earth magnetic field measurement; a mission to find commercial, off-the-shelf alternatives to expensive space adhesives, and active attitude stabilization as a precursor to active aiming control for future CubeSat missions.

Other CubeSats carried aloft on the same launch include: Swiatowid, which will carry a V/U transponder, with an FM voice uplink at 436.000 MHz and downlink at 145.850. Telemetry will be transmitted on 435.500 MHz and at 2435.000 MHz; KrakSat, which will transmit 9.6 k and 1.2 k telemetry at 435.500 MHz, and EntrySat, a 3U CubeSat that will measure thermosphere parameters during its orbital phase, and satellite re-entry during the re-entry phase. It will carry an Amateur Radio FM relay with a downlink of 436.950 (uplink not available) and 9.6 k packet. — Thanks to AMSAT News Service

Source: ARRL

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The post Three BIRDS Constellation CubeSats Delivered to ISS for Orbital Deployment appeared first on QRZ Now - Amateur Radio News.

Three BIRDS Constellation CubeSats Delivered to ISS for Orbital Deployment

ARRL News - Tue, 04/23/2019 - 12:38pm

A Cygnus resupply mission to the International Space Station (ISS) on April 11 also delivered three CubeSats of the BIRDS-3 constellation and three other CubeSats. The BIRDS-3 constellation is a project of students at the Kyushu Institute of Technology. The additional CubeSats include Swiatowid, KrakSat, and EntrySat.

All BIRDS-3 CubeSats are of the same design and have been coordinated to opera...

Categories: Amateur radio news

Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week

QRZ Now - Tue, 04/23/2019 - 11:35am

A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol began shortly after the FT8 Roundup held last December 1 – 2. The goal was a mode that could compete with RTTY contesting in terms of contact rates, while preserving many of the benefits of FT8.

“Over the past month a small group of volunteers have been conducting on-the-air tests of FT4,” the WSJT-X Development Group — Joe Taylor, K1JT; Steve Franke, K9AN; and Bill Somerville, G4WJ — announced this week. “The early tests were very successful and helped us to make a number of important design decisions. We believe FT4 has considerable promise for its intended purpose.”

The developers say FT-4 soon will be ready for testing by a larger group and they’re seeking interested participants who can offer their “considered feedback.” They suggest reading The FT4 Protocol for Digital Contesting first.

According to the document FT4 is an experimental digital mode designed specifically for radio contesting that — like FT8 — uses fixed-length transmissions, structured messages with formats optimized for minimal contacts, and strong forward-error correction. Transmit-receive sequences are 6 seconds, making it 2.5 times faster than FT8 and about the same speed as conventional RTTY for radio contesting. FT4 can work with signals 10 dB weaker what would be required to decode RTTY while using much less bandwidth.

Transmissions last for 4.48 seconds, compared to 12.64 seconds for FT8. Modulation uses four-tone frequency-shift keying at approximately 23.4 baud, with tones separated by the baud rate. The occupied bandwidth is 90 Hz.

“We plan to post downloadable installation packages for WSJT-X version 2.1.0-rc5 (-rc versions are so-called “release candidate” software) on Monday, April 29,” the Development Group said. The FT4 Protocol for Digital Contesting document includes: 

  • Instructions for installing WSJT-X 2.1.0-rc5 and configuring FT4. 
  • FT4 operating instructions. 
  • A basic description of the FT4 protocol, modulation, and waveform. 
  • Detailed sensitivity measurements for FT4 under a wide variety of simulated propagation conditions. 
  • A schedule of upcoming test sessions. 

Source: ARRL

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The post Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week appeared first on QRZ Now - Amateur Radio News.

Wouxun KG-UVN1 Dual Band DMR Review

QRZ Now - Tue, 04/23/2019 - 9:13am

MAIN  FUNCTIONS
  • 3072 Channels
  • 1024 Contacts
  • 255 Receiving Groups
  • 250 Zones
  • 16 Scan List
  • Radio ID
  • Radio TX Contacts
  • Duan Band and Dual Display
  • Radio Color Code
  • Support Frequency Mode
  • Program Key
  • Digital Voice Encryption
  • Emergency Alarm
  • VOX Function
  • Priority Channel
  • Scan TX Designated Channel
  • Low Battery Power Off
  • One Touch Access / Talk Around
  • Radio Program Password
  • Menu Encryption or Menu Hide
  • Power Save Mode
  • Group Scan
  • Tail Elimination
  • Text Message
  • Radio Disable or Enable
  • Lone Work
  • ARTS Function
  • Flash Light
  • Call Alert
  • CTCSS Encoding and Decoding , Support Non Standard
  • Digital Channel Recording , Continuous Record 8 Hours
  • Play Recording File
  • Customerized Radio Interface
  • DTMF Encoding and Decoding
  • Transmit Time-out Alert
  • FM Radio
  • Fimware Upgradable
TECHNICAL  SPECIFICATION Intergration    Frequency Range 136-174MHz , 400-480MHz , (FM) 65-108MHz    Channel Number 3072    Operating Temperature -20℃~+40℃    Antenna Resistance 50Ω    Working Voltage 7.4 VDC    Weight 300 g    Size 64 x 41 x 130 (mm) Receiver    Analog Receive Sensitivity 0.25µV@12dB SINAD    Digital Receive Sensitivity 0.25µV(BER:5%)    Adjacent Channel Selectivity ≤60dB@12.5KHz    Audio Response +1dB~-3dB    Audio Distortion ≤5%    Audio Power 1W    Inter Modulation ≥65dB Transmitter    FM Modulation 12.5KHz : 11KOF3E , 25KHz : 16KOF3E    4FSK Digit Modulation 12.5KHz(Data Only) : 7K60FXD
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Union County ARES Digital Simplex Net

Union County ARES Connect - Mon, 04/22/2019 - 9:25pm

Monday night Union County ARES Digital Simplex net on 145.60

Union County ARES Digital Simplex Net

Union County ARES Net - Mon, 04/22/2019 - 9:25pm

Monday night Union County ARES Digital Simplex net on 145.60

Union County ARES Group Net

Union County ARES Connect - Mon, 04/22/2019 - 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, 04/22/2019 - 9:00pm

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

FCC Seeks Telecommunications Specialist

ARRL News - Mon, 04/22/2019 - 3:37pm

The FCC has announced a position opening that may be of interest to a radio amateur. The Commission seeking a telecommunications specialist to work at the High Frequency Direction Finding Center (HFDFC) in Columbia, Maryland. This is a full-time position.

The person holding this position performs “watch duty” and serves as a technical authority providing technical assistance and guidance to comm...

Categories: Amateur radio news

Ulrich Rohde, N1UL, Wins 2019 IEEE CAS Industrial Pioneer Award

ARRL News - Mon, 04/22/2019 - 3:33pm

Ulrich Rohde, N1UL, has been selected to receive the 2019 Circuits and Systems (CAS) Society Industrial Pioneer Award. The Industrial Pioneer Award recognizes exceptional and pioneering contributions in translating academic and industrial research results into improved industrial applications and/or commercial products. The IEEE Circuits and Systems Society sponsors the award, which will be pre...

Categories: Amateur radio news

Former North Carolina Section Manager John Covington, W4CC, SK

ARRL News - Mon, 04/22/2019 - 3:28pm

Former ARRL North Carolina Section Manager John Covington, W4CC, of Charlotte, died on April 17 after a long illness. An ARRL Life Member, he was 58. Covington served as North Carolina SM from 2000 until 2006. First licensed in 1972, Covington mainly enjoyed CW and some digital modes, but operated phone on the National Traffic System, where he was very active, and on occasional public service n...

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The FT4 Protocol for Digital Contesting by K1JT

QRZ Now - Mon, 04/22/2019 - 1:39pm

Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJS
April 22, 2019

Introduction: FT4 is an experimental digital mode designed specifically for radio
contesting. Like FT8, it uses fixed-length transmissions, structured messages with
formats optimized for minimal QSOs, and strong forward error correction. T/R
sequences are 6 seconds long, so FT4 is 2.5 × faster than FT8 and about the same
speed as RTTY for radio contesting. FT4 can work with signals 10 dB weaker than
needed for RTTY, while using much less bandwidth.
Basic parameters: FT4 message formats are the same as those in FT8 and encoded
with the same (174,91) low-density parity check code. Transmissions last for 4.48 s,
compared to 12.64 s for FT8. Modulation uses 4-tone frequency-shift keying at
approximately 23.4 baud, with tones separated by the baud rate. The occupied
bandwidth (that containing 99% of transmitted power) is 90 Hz. Threshold sensitivity for
50% decoding probability is S/N = –16.4 dB, measured in the standard 2500 Hz
reference noise bandwidth. A priori (AP) decoding can push threshold sensitivity down
to –18 dB or better.

Installation and Initial Setup
To join the FT4 test group and participate in one or more upcoming “mock contest”
practice sessions, follow these steps to install and configure a release candidate for
WSJT-X 2.1.0:
1. Download the installation package from a link to be provided.
2. Install the program in the usual way for your operating system. To avoid conflict
with your normal operation, you may wish to use a different installation directory
from that used for WSJT-X 2.0.
3. Start the program as you normally would for FT8.
4. From the Configurations menu select FT8 | Clone (or Default | Clone).
5. Rename the resulting new configuration to FT4, and select the new configuration.
6. Select FT4 from the Mode menu.
7. On the File | Settings | Frequencies tab, right-click any line in the Working
Frequencies table and press the Reset button. This action will pick up the
recommended working frequencies for FT4.
8. Check the box Special operating activity on the Settings | Advanced tab.
Then select RTTY Roundup messages and enter your proper contest exchange
in the field RTTY RU Exch.
9. Instructions for connecting WSJT-X to N1MM Logger+ can be found in the
WSJT-X 2.1 User Guide, Section 4.5.
2
You now have a release candidate for WSJT-X 2.1.0 configured for FT4 operation. You
might find it useful to download and examine an FT4 sample file. Select Download
Samples from the Help menu and tick the FT4 box. Configure the Wide Graph
controls as shown in Figure 1 and select Deep on the Decode menu, then open the
sample file from the File menu. The recorded interval should produce 19 decodes, as
seen in Figure 1. Most of the decoded signals are inaudible or barely audible in the
audio file. Fewer than one-third are strong enough to be reliably decoded if they had
been RTTY signals — and only then if they were spread out over a much wider
frequency range.

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Operation: Aside from its much shorter T/R sequences, FT4 behaves essentially the
same way as FT8. One new on-screen control is available for FT4 operation, a button
labeled Best S+P, just below the Call 1st checkbox. Clicking this button during an Rx
cycle arms the program to examine all CQ messages decoded at the end of the 6-
second Rx sequence. The program will select the best potential QSO partner (from a
contesting perspective), and treat it as if you had double-clicked on that line of decoded
text. Here “best potential QSO partner” means “New Multiplier” (1st priority) or “New
Call on Band” (2nd priority). “New Multiplier” is currently interpreted to mean “New
DXCC”; a more broadly defined multiplier category (for the ARRL RTTY Roundup rules)
will be implemented soon. We may also provide additional priority rankings, for
example “New Grid on Band” (useful for North American VHF contests), sorting by
signal strength, etc.
For keyboard control of transmitted messages, check the box Alternate F1–F6
bindings on the Settings | General tab. In typical contest-style operation you can then
hit function key F1 to solicit a QSO by sending CQ. To respond to a CQ and send your
contest exchange, double-click on the decoded message. Alternatively, you can click on
Best S+P and let the selection algorithm choose a station to call. Auto Seq and Call
1st checkboxes behave as in FT8, and thus the remainder of a minimal QSO can
continue without further operator action. Function keys F2 – F5 may be used to send
messages displayed in entry fields for Tx2 – Tx5 on tab 1, at bottom right of the main
window. Function key F6 toggles the checked status of Call 1st, and key combination
Alt+B can be used to toggle the armed status of Best S+P.
FT4 is presently configured so that a station operating in Search-and-Pounce (“S+P”)
mode logs a QSO when RR73 is transmitted, and the CQing (“Run”) station logs a QSO
when RR73 is received. Like FT8, FT4 makes little distinction between an S+P station
and a Run station. An operator can switch easily and frequently between these two
ways of initiating QSOs, and contesting skill will depend on optimizing these and many
other operating decisions. With a steady stream of available stations to work, singleradio QSO rates well above 100/hour are possible using FT4.

Transmitted signal: FT4 uses a modulation technique known as Gaussian frequency
shift keying, or GFSK. The generated audio waveform consists of 105 symbols (tones)
sent in sequence at one of four frequencies. The encoded series of distinct tones for
part of a transmission might originally look like the upper (red) curve in Figure 2.
However, in FT4 the sequence of frequencies is smoothed by convolution with a
Gaussian function before being sent to the software modulator. The blue curve shows
the corresponding smoothed sequence of frequencies actually sent to the modulator.
The transmitted sequence no longer has any stepwise discontinuities.
Differences between the red and blue curves seem rather small, but spectra of the
resulting audio waveforms are remarkably different. Figure 3 shows spectra for an FT4
signal (blue) and a standard continuous-phase FSK sigal (red) for the same encoded bit
sequence. The GFSK spectrum has steep skirts, occupying a bandwidth of only 75 Hz
at –6 dB, 200 Hz at –60 dB, and 260 Hz at –80 dB. No additional filtering is applied to
the audio waveforms.

Figure 3 also shows the spectrum of a standard RTTY signal (purple), which is more
than 2000 Hz wide at –60 dB. Some ham software generating RTTY signals by audio
frequency shift keying (AFSK) offers optional filtering of the waveform to reduce the
unwanted keying sidebands. However, such post-modulation filtering necessarily
destroys the constant-envelope nature of the continuous-phase FSK signal and leaves
behind a waveform that must be amplified with good linearity to avoid generating new
unwanted sidebands. In contrast, the GFSK signal of FT4 has a constant envelope and
is immune to inter-modulation distortion.
5
Decoding and Frequency Usage: The FT4 decoder in WSJT-X 2.1 identifies and
decodes signals anywhere in a passband up to 5 kHz wide. As in other WSJT-X
modes, received messages are “all or nothing” — there are no partial decodes, and
false decodes are rare. Subtraction of decoded signals from the received data stream
enables decoding of transmissions that overlap in frequency with other, possibly much
stronger signals. The last three decodes shown in the Band Activity window in Figure 1
are examples of such second-pass decodes. With the normal odd/even sequencing of
transmissions and signals spaced at intervals 120 – 150 Hz, as many as 50 stations can
operate in a 3 or 4 kHz passband with little interference, even when signal strengths
differ by as much as 60 dB.
Experience will tell what may be the best strategy for selecting dial frequencies during
contests, and for how many ~3 kHz segments should be used for FT4 on each band.
As initial guidelines we suggest the following default dial frequencies for FT4: 3.595,
7.090, 10.140, 14.140, 18.104, 21.140, 24.919, 28.180, 50.318, 144.170 MHz. We will
welcome any feedback that could lead to better frequency choices.
Sensitivity: Figure 4 presents measurements of FT4 decoder sensitivity over a wide
range of simulated propagation conditions. Paired numbers at the right give the
Doppler spread (Hz) and two-path differential delay (ms) for various sets of ITUstandard conditions, using the Watterson model for ionospheric propagation. The leftmost solid curves correspond to common mid-latitude propagation paths in undisturbed
conditions. Dashed curves show the measured sensitivities for decoding with maximum
a priori information, in two extremes of propagation conditions. For a rough comparison
with RTTY, we note that in simulated mid-latitude moderate conditions RTTY has been
shown to yield character error rates less than 10% only when SNR exceeds –1 to +4
dB, depending on the software modem in use. FT4 offers a sensitivity advantage of
about 10 dB over RTTY

Previous testing: Early release candidates of WSJT-X 2.1.0 enabled us to explore the
advisability of making FT4 an asynchronous mode with no fixed start times for T/R
intervals. These tests served to highlight the significant advantages of using timesynchronized sequences. Fixed sequence lengths with prescribed start times ensure
that a much larger fraction of received signals are decodable, especially in contest-like
operating conditions where a given station may transmit roughly half the time. In terms
normally used for communications engineering, synchronization increases channel
capacity.
Schedule: A few parameters and operating behaviors of FT4 are still being tested and
optimized. It will be very useful to hold several more mock contest practice sessions,
with a larger group of active participants. Even if these reveal no serious bugs or
inadequacies, we think FT4 is too new to be used in two upcoming events: the ARRL
VHF Contest (June 8-10) and ARRL Field Day (June 22-23). Consequently we plan to
build a release candidate WSJT-X 2.1.0-rc5 that will “time out” on June 7, 2019. As far
as possible, we plan to adhere to the following schedule:
• April 22: Public announcement about FT4, with a link to this document
• April 29: Second announcement, with links to downloadable installation packages
for WSJT-X 2.1.0-rc5
• May 9, 0000 – 0100 UTC: FT4 practice session, 7.090 MHz
• May 14, 0000 – 0100 UTC: FT4 practice session, 7.090 MHz
• June 5, 0000 – 0100 UTC: FT4 practice session, 7.090 MHz (if needed)
• July 15: General Availability (GA) release of WSJT-X 2.1.0
Random concluding thoughts: FT4 is a special-purpose mode designed for rapid-fire
contest QSOs. It serves this purpose very effectively, but like FT8 the mode is not
useful for more extensive conversations. FT4 uses much less bandwidth than RTTY
and provides reliable decoding at much lower signal levels. It has no need for “Super
Check Partial” or similar contesting aids, and skilled operators using FT4 will find less
motivation to use a DX Cluster or other non-radio aids. All information necessary to
score well in a contest can be obtained over the air, during the contest, through one’s
own antennas and radios. With FT4 there is little distinction between CQ and S+P
operation, so it’s easy to switch frequently between the two ways of finding QSO
partners. Stations using low power and compromise antennas can participate
effectively in a contest using FT4.

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West Coast Station K9JM to Transmit April 25 ARRL Code Proficiency Run

ARRL News - Mon, 04/22/2019 - 1:25pm

West Coast station K9JM will be transmitting the official ARRL Code Proficiency Run on April 25 at 0400 UTC (Wednesday, April 24, in US time zones) on 3590 kHz. Sending speeds will run from 10 to 35 WPM.

Categories: Amateur radio news

International Marconi Day

QRZ Now - Mon, 04/22/2019 - 8:32am

International Marconi Day celebrates the huge part Guglielmo Marconi played in the invention of radio. IMD is a 24 hour amateur radio event that is held annually to celebrate the birth of Marconi on 25 April 1874. The event is usually held on the Saturday closest to Marconi’s birthday and in 2019 it will be held on 27th April.

The purpose of the day is for amateur radio enthusiasts from around the world to make contact with Historic Marconi Sites using communication techniques similar to those used by Marconi himself.

 

Registered Stations MUST operate from a site which has a connection with Marconi i.e somewhere he operated from, lived, set up a station etc.

For your information

We now have a Network Radio Channel on Zello for IMD. If you have Zello on you Mobile or on your computer just search GB4IMD in channels or you can scan the image below.

Period of Operation on 27th April 2019

0000 UTC  to 2359 UTC

To register your station for International Marconi Day 2019 please contact us using the email address below.

crac.imd@gmail.com

Please note you do NOT need to register just to claim the award.

As of April 21st, here are the following registered IMD special event stations to be on the air:

9H1MRC – Marconi Amateur Radio Circle, Malta 
CW1GM – Radiogrupo Sur, Uruguay 
DA0IMD – Borkum Island, Germany 
EI0CAR – Carndonagh ARC, Malin Head, Ireland 
EI0IMD – The Mizen Head Signal Station, North Cork Radio Group 
EI0MAR – Martello Tower, Dublin 
EI5IMD – Cork RC, Crookhaven, Co. Cork Ireland 
EI100YXQ – Marconi Site, Ballybunion, County Kerry 
G2LO – Borough Hill, Daventry, UK 
G2NM – Amberley Museum ARC, West Sussex, UK 
GB0CMS – Caister Marconi Station, Life Boat Station, Norfolk, UK 
GB0IMD – Weston Super Mare, UK 
GB0MGY – Harlow RS, Essex, UK 
GB0PBM – Lloyds Cottages, Portland Bill, Isle Of Portland 
GB0YAM – Yorkshire Air Museum, York, UK 
GB1BM – Brooklands Museum, Weybridge, Surrey, UK 
GB2BYF – Claeddau ARS, Pembroke Docks, Wales 
GB2GM – Poldhu ARC, Cornwall, UK 
GB2IMD – Dragon Amateur Radio Club, Wales 
GB2M – Lochboisdale, Isle of South Uist, Outer Herbrides, Scotland 
GB2NH – Tidemills Marconi Site, East Sussex, UK 
GB2OWM – Orkney Wireless Museum, Orkney, Scotland 
GB4GM – Dragon Amateur Radio Club, Wales 
GB4HSM – History & Science Museum, Oxford, UK 
GB4IMD – Cornwall, UK (organizers) 
GB4MBP – Bass Point, Cornwall, UK 
GB4MDI – Barry ARS, Lavernock Point, South Wales 
GB4WMD – Alum Bay, Isle Of Wight 
GB5FHC – Fraserburg Heritage Centre, Fraserburg, Scotland 
GB5LT – Luttrells Tower, Hampshire, UK 
GB8MD – Telford & District ARS, Gwynedd, Wales 
GB9GGM – Pepperbox Hill, Wiltshire, UK 
II0GM – Rome, Italy 
IY0GA – Capo Figari ­ Golfo Aranci (SS) ­ Sardinia Island 
IY0IMD – Forte Michelangelo ­ Civitavecchia (RM) 
IY0ORP – Osservatorio Geofisico di Rocca di Papa (RM) 
IY0TC – Torre Chiaruccia ­ Santa Marinella (RM) 
IY1MR – Rapallo (GE) 
IY1SM – Santa Margherita Ligure (GE) 
IY1SP – La Spezia 
IY1TTM – Marconi tower, Sestri Levante, Italy 
IY4FGM – Villa Griffone ­ Pontecchio Marconi (BO) 
IY5PIS – Coltano (PI) 
IY6GM – Monte Cappuccini (AN) 
IY7GMB – Circolo ARS, Bari 
IY7M – Molo San Cataldo (BA) 
K2M – Marconi Tower, Binghamton, NY, USA 
K3IMD – Hartstown, Pennsylvania, USA 
K3S – Nuclear Ship Savannah, Baltimore, USA 
KL7NC – Marconi Station KPB Site, Ketchikan, Alaska 
KM1CC – Cape Cod RC, USA 
MN0VFW – Mid Ulster ARC, Northern Ireland 
N6M – San Diego, USA 
ND1U – Notre Dame ARS, USA 
OE19M – IMD Station, Austria 
PA6IMD – Gouda & District Section Veron, Netherlands 
VA2IMD – Drummondville, Province of Quebec, Canada 
VK2IMD – Hornsby & District ARC, Hornsby, NSW, Australia 
VO1IMD – Signal Hill, Newfoundland, Canada 
VP8VPC – Stanley, Falkland Islands 
W2GSB – Babylon, Long Island, NY 
W2LCW – Babylon, Long Island, NY 
W2MRC – Somerset, New Jersey 
W2RC – Radio Central ARC, Rocky Point, New York 
W2RTM – New Jersey Antique Radio Club, New Jersey, USA 
WA1WCC – Chatham, Massachusetts, Cape Cod, USA 
WA3BAT – Philadelphia Museum Ship, Philadelphia, USA

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My best Satellite Demo Ever – 18 QSOs

QRZ Now - Sun, 04/21/2019 - 5:47pm

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FTDX101 Series Catalog

QRZ Now - Fri, 04/19/2019 - 6:45pm

 

 

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Fifine Condenser Microphone K669B Review/Test

QRZ Now - Fri, 04/19/2019 - 9:10am

  • 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,computer singing or podcast.Easy to use and install on Mac or PC.(◆◆Not compatible with Xbox and Phones◆◆)

 

  • Solid sturdy metal construction design computer microphone with stable tripod stand is convenient when you are doing voice overs or livestreams on YouTube.
  • Recording microphone with additional volume knob itself has a louder output and is more sensitive,your voice would be heard well enough when gaming ,skyping or voice recording.
  • USB-powered design condenser microphone for recording no need the 48v Phantom power supply, work well with Cortana,Discord,voice chat and voice recognition.
  • Cardioid polar pattern condenser microphone for computer captures your voice properly,produce clear smooth and crisp sound without static noise.Great for gamers/streamers at isolating the sounds from the main source and separating them from any background noise. Does the job well for streaming broadcast ,OBS and teamspeak

Buy : https://amzn.to/2GlqEP8

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Camouflaged Ham Radio Antenna

QRZ Now - Fri, 04/19/2019 - 8:59am

Model Frequency (MHz) Gain (dBi) Length Feedline   VT-14 144-148 2.6 36 in. 3 ft. RG-58   VT-22 222-225 2.6 25 in. 3 ft. RG-58   VT-44 440-450 2.6 16 in. 3 ft. RG-58   VT-27 144-148 & 440-450 2.6 36 in. 3 ft. RG-58   VT-900 900-928 4.2 19 in. 3 ft. RG-58   VT-1200 1270-1290 4.2 16 in. 3 ft. RG-58   VT-16/46 150-170 & 450-470 2.6 32 in. 3 ft. RG-58   VT-xxxx Any single frequency between 100 MHz and 600 MHz, not covered by standard models 2.6 varies 3 ft. RG-58   VT-xxxx Any single frequency between 600 MHz and 1290 MHz, not covered by standard models 4.2 varies 3 ft. RG-58   Opt- N BNC-to “N” Adapter         Opt – Inside Coax inside the pipe     10 ft. RG-58   Opt – Coax Extra Coax (RG-58) Per Ft.

See More; http://www.ventenna.com/

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The post Camouflaged Ham Radio Antenna appeared first on QRZ Now - Amateur Radio News.

The K7RA Solar Update

ARRL News - Fri, 04/19/2019 - 7:17am

New sunspot group 2739 appeared on April 17, and the daily sunspot number rose to 24. The new sunspot has a polarity indicating it is still part of old cycle 24, the current sunspot cycle. This reporting week (April 11-17) the average daily sunspot number rose from 6.9 to 14, while average daily solar flux increased from 75.4 to 76.4.

Sunspots have been visible on every day since April 7, so as ...

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