Antenna
Fantastic “must-see” entertaining and practical buildathon with Mike M0MSN & Callum showing the complete build of a 4:1 Balun. Read more
App - Mobile
![Real-time Radio Spectrum Map Database Demo [ Android App ]](https://qrznow.com/wp-content/uploads/2021/10/maxresdefault-3-1-274x173.jpg)
In view of the escalating demand for higher mobile data (from IoT, industry 4.0 applications), there is a growing world-wide interest to improve the radio spectrum utilization. Effective management of the wireless spectrum requires knowledg... Read more
Digital Modes
Hello Operators. In this episode of the OH8STN ham radio, we are discussing replacing the raspberry pi field computer build, with the Microsoft Surface as a portable ham radio computer for data modes. Top of my list was the Microsoft Surfac... Read more
News
How well is the VHF Repeater Hearing your Signal?
VHF Repeater “Collin, K0NNK, is having some trouble with is antenna and a nearby repeater. He hit a 2 meter repeater full quieting but the repea... Read more
Dayton Hamvention Expects to be Live Event in 2022
Dayton Hamvention® organizers are planning to mount the first in-person show in 2022, following 2 years of COVID-related cancellations. The event is s... Read more
Big Bright Regions Beckon Amid a Big Aurora Show | Solar Storm Forecast 11.22.2021
“Activity remains subdued this week with only pockets of fast solar wind to bring sporadic aurora to high latitudes, nothing like the G3 show we... Read more
ISS SSTV Dec 1-2 145.800 MHz FM
Russian cosmonauts on the International Space Station (ISS) are planning to transmit Slow Scan TV images on 145.800 MHz FM using the SSTV mode PD-120.... Read more
Superb Antennas – 40m to 13 cm. from The Antennas-Amplifiers Company
Peter Waters G3OJV, introduces this superb range of antennas built to a standard, rarely seen in ham radio. The prices are still competitive and the p... Read more
Do Lightning Rods make Antennas Impossible?
Joe, AD2AH, has been asked if lightning rods would present a halo and degate the radiation pattern or a Endfed Antenna? He doesn’t think it woul... Read more
Reviewing the Radioddity GD-AT10G Handheld
Review for the Radioddity GD-AT10G! Radioddity GD-AT10G 10W DMR Radio Featuring 10W high power output, powerful 3100mAh battery, GPS & APRS functi... Read more
Different Coax Cables
Theo, PD9DP, only asks, “Does it make a difference if I use different coax cables? We have quite a lot to discuss… Read more
German WW2 100W.S and Torn.E.b on 630 meter ham frequency. 475 kHz
I transmit with old transmitter from WW2 at 475 kHz. 100 W.S and Torn.E.b receiver. A kite is the antenna. Read more
Project E.L.F. – The history of communicating with submarines underwater
“Nestled deep in the Chequamegon-Nicolet National Forest in Northwest Wisconsin is the small town of Clam Lake. Clam Lake is best known for the... Read more
HF PORTABLE OPERATION – POSH STYLE !
Peter G3OJV, had the opportunity to operate from a rather posh QTH. He took with him some simple gear including the LAB 599 TX-500 Transceiver. Join h... Read more
Air Band Radio Scanners Are Illegal!? – The Law Explained
The Law Explained Read more
The 2022 ARRL Handbook for Radio Communications is Now Available
The ARRL Handbook for Radio Communications for 2022 is a must-have for every radio amateur’s bookshelf. Whether you’re an experienced ham or new to th... Read more
Mysterious Radio Signal Discovered in Milky Way Center | What Is It!?
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky... Read more
TRI BAND TRANSCEIVER – RS-UV3A
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeater... Read more