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DMX-40 Transceiver

DMX-40 Transceiver

The Premier Morse Translator/Transceiver Tired of trying to learn Morse code? Searching for a state-of-the-art decoder/encoder companion for your stat... Read more

Using MFJ-916B Duplexe

Using MFJ-916B Duplexe

David, N9BSA, is trying to merge two antennas using a Diamond Phasing Harness ss770r, but Dave has a better suggestion…. The MFJ-916B duplexer i... Read more

RTL-SDR RF Filters

RTL-SDR RF Filters

In this video, we take a look at how RF filters work and how you can improve signals when using an SDR, in this video we use the RTL-SRD reviewer and... Read more

Released SDRuno 1.41

Released SDRuno 1.41

SDRuno Roadmap Updated 13th September 2021 Version 1.41 of SDRuno®  is the latest full production version.  The remaining features along wit... Read more

Beam Pattern vs Heights

Beam Pattern vs Heights

Dave is going to explain and dig deeper into the Beam field of antennas, such as dipoles, and how their distance from the ground can change the propag... Read more

The K7RA Solar Update

The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Sunspot activity increased dramatically this week. Over the course of the reporting week, sunspot numbers peaked at... Read more

Digital Modes

Equipment

DMX-40 Transceiver

DMX-40 Transceiver

The Premier Morse Translator/Transceiver Tired of trying to learn Morse code? Searching for a state-of-the-art decoder/encoder companion for your stat... Read more

VHF-UHF

The K7RA Solar Update 07/03/2015

Conditions over Field Day weekend turned out to be not bad at all. The expected geomagnetic upset never happened. On June 25-26, the Thursday and Friday before Field Day, the predicted planetary A index for the June 27-28 was 45 and 60, really bad conditions. The actual... Read more

Review

4W/JE1CKA – Timor Leste

Timor Leste Tack, JE1CKA will be active from Timor Leste as 4W/JE1CKA between October 21-28, 2015. Focus on CQ WW SSB contest, but also QRV 160-10m on CW. QSL via H/c. Together with JI1AVY. Antennas will be Inverted L(160/80m)/GP(40m)/Dipol... Read more

App - Mobile

Software

Released SDRuno 1.41

Released SDRuno 1.41

SDRuno Roadmap Updated 13th September 2021 Version 1.41 of SDRuno®  is the latest full production version.  The remaining features along wit... Read more

N1MM+ Updates!

N1MM+ Updates!

Version 1.0.9252 (August 31, 2021) K4 Radio Control: Increased the command pacing and slowed the radio polling to eliminate a radio configuration erro... Read more

Propagation

Contesting

Dxing

VHF

Using MFJ-916B Duplexe

Using MFJ-916B Duplexe

David, N9BSA, is trying to merge two antennas using a Diamond Phasing Harness ss770r, but Dave has a better suggestion…. The MFJ-916B duplexer i... Read more

Antenna

News

 


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