There are no ads, please add some
KD0CQ has recently been experimenting with trying to receive signals at frequencies of up to 4.5 GHz with an RTL-SDR and downconverter. Since a typical R820T/2 RTL-SDR’s maximum frequency limit is about 1.7 GHz, an external downconverter circuit is required.
A downconverter converts high frequencies down into the range receivable by the RTL-SDR. For example a downconverter with a 2.4 GHz local oscillator would convert a 3.5 GHz signal down to 1.1 GHz, which can be easily received by an RTL-SDR….MORE
More
Confidently face power failures, power outages and blackouts with the Solar e Power Cube 1500 Plus. • A dependable power source during disasters • Very portable and equipped with wheels for easy transportation • Supplies power to AC,... Read more
![VHF propagation video released [ RSGB ]](https://qrznow.com/wp-content/uploads/2020/06/VHF-screenshot2-90x60.jpg)
More
1 KW SSPA for 1.8-54 MHz
It’s been a while since I built an amp for HF; I’d have to go back to the 60’s and a pair of the venerable 3-500z tubes that I put t... Read more
Setting up APRS on the Yaesu FT3DR Handheld Transceiver – Ham Radio Q&A
Compact Design and Reliable 5W RF Power Output (Selectable 5W/ 2.5W/ 1W/ 0.3W) C4FM Digital V/D Mode, Voice FR Mode, Data FR Mode and Conventional FM... Read more
IC-9700 Test Report by Adam VA7OJ/AB4OJ
Source:http://www.ab4oj.com/ Read more
HDSDR VERSION 2.75 (STABLE) RELEASED
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... Read more
Metal Ham Shack – Issues and Improvements
Art, W9SOL, wants to know if his steel building will cause issues with his radio’s performance or improve its performance? Read more
NH0/DL2AH – Rota Island , OC-086
Prior to his activity from Yap Island as V63AH, look for Ulli DL2AH to be QRV from Rota Island, Northern Marianas as NH0/DL2AH between September 30 to... Read more
Universal Radio is closing shop
Dear Friends Of Universal Radio, Time waits for no one, and that includes Barbara and myself. We have decided to retire and our current location in Wo... Read more
Straight Key Night is a New Year’s Day Tradition
Photo by : Daryll Thompson VE3LFN Every day is a good day to operate on CW, but set some time aside on New Year’s Eve and Day to enjoy Straight Key Ni... Read more
K42C CW Keyboard/Reader Kit
The K42 is the Swiss Army knife of CW keyers, it will provide lots of CW operation and enjoyment. A CW keyboard interface, CW reader, iambic paddle ke... Read more
Reported Russian Ham Band Intruders Continue to be Troublesome
Ham Band Intruders Ham Band Intruders The International Amateur Radio Union Monitoring Service (IARUMS) reports interference on 40 meters from various... Read more
APRS In Your Pocket
APRS For a lightweight portable station, all you need is a handheld transceiver, a tiny packet TNC, and an Android smartphone. For those unaware, APRS... Read more
Atlantic Hurricane Season 2018 – QRG
The Atlantic Hurricane Season runs from 1st June to 30th November this year. So it is time to remind the wider Amateur Radio community that the follow... Read more
BTECH UV-5X3 Handheld Tribander
BTECH UV-5X3 An Affordable Tribander HT Available Today! BaoFeng Tech announced today the release of the BTECH UV-5X3 The UV-5X3 is more than just a... Read more
The K7RA Solar Update
Tad Cook, K7RA, in Seattle, reports: The current stretch of spotless days is now over 3 weeks, according to Spaceweather.com. The continuing quiet see... Read more
Five-Watt SDR Transciever for Hams – RS-HFIQ 5W Software Defined Radio
The RS-HFIQ is a high performance Software Defined Radio (SDR) 5W Transceiver for CW, SSB, AM, FM and digital modes. Product Summary Not just another... Read more
Emergency Grid Down Communications Winter Edition
“Hello Operators Extreme weather and grid down disasters seem to be happening more often, and with greater intensity. More often than not, when... Read more
WSJT-X 2.2.2 released
The WSJT Development Group is pleased to announce the general availability (GA) release of WSJT-X Version 2.2.2. A brief summary of new features is pr... Read more