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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
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In the last few weeks, the ARRL’s Board of Directors has been the subject of an organized misinformation campaign. It is being orchestrated by a group of hams, some of whom are well-intentioned but have been misled. This effort, which consi... Read more
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ZF2EE Cayman Islands
I will be active from Cayman Islands with CW and using the callsign ZF2EE. Active periode is from 7th August until 9th August including the WAEDC CW C... Read more
AOR AR-DV10
AR-DV10 Digital Handheld Scanning Receiver Features : 100kHz-1300MHz analogue & digital modes 10 Digital Modes : TETRA,P25(Phase 1+2),DMR,Mototrb... Read more
Hamvention Improvements Already in the Works for 2018!
Even before Hamvention® 2017 had wound down at its new Xenia, Ohio, location, plans were on the drawing board to enhance next year’s show. Hamvention... Read more
Butternut HF5B 5-Band Butterfly Beam Antenna
Butternut HF5B 5-Band Butterfly Beam Antenna Five popular HF bands 20, 17, 15, 12 and 10 meters in a rotatable, two element beam? No Lossy trap... Read more
Ham radio family enjoys distant connections
by Herman Fuselier, Every Thursday night, Abbi and Kendra Wilson talk to friends who may be near Seattle or in the country of Belize. These teenage s... Read more
Review of Alpha Loop and Buddipole Buddistick
“Hey Oggies, Oggie Rodney Johnson, KAØUSE, loaned me his Alpha Loop antenna and his Buddipole Buddistick. Both antennas are pretty good out away... Read more
Hy-Gain T2X Tailtwister Series II – Antenna Rotator
T2X Tailtwister Series II for large medium antenna arrays up to 20 square foot wind load The T-2XD2 includes the DCU-2 Digital Automatic Controller... Read more
![Vadrum Speaks Morse Code [ Video]](https://qrznow.com/wp-content/uploads/2014/12/morse_code1-190x122.jpg)
Vadrum Speaks Morse Code [ Video]
“The fastest way to learn a new language? Obviously by playing it! 😀 What’s up everyone, here’s you the fascinating Morse Code alpha... Read more
W3LF – First Black Radio Station Operator, 1926
Rufus P. Turner W3LFFirst Black Radio Station Operator, 1926 “Rufus Paul Turner (December 25, 1907 – March 25, 1982)was an academic, engi... Read more
6-160 Meter Alpha S9 Spun Fiberglass Antenna
Introduction: Acquired in 2014 by Alpha Antenna, the S9 Antennas have been completely improved and resigned. Years of perfecting the manufacturing pro... Read more
Local ham radio operators try to contact those impacted by TS Erika Storm
TS Erika Storm WEST PALM BEACH, Fla. – JUPITER, Fla– While there are still many unknowns with Tropical Storm Erika, we do know the storm h... Read more
MonoBeam Yagi MB7 10-15-20-40
MonoBeam Yagi MB7 The MB7 10-15-20-40 is a quad band antenna for 7 MHz, 14 MHz, 21 MHz and 28 MHz with loading coil and capacitive hat for 40m only. T... Read more
ICOM ID-51A-PLUS2 Handheld Transceivers
ICOM ID-51A-PLUS2 Handheld ICOM ID-51A-PLUS2 Handheld Transceivers offer global D-STAR connectivity! These dual band transceivers have a super-compa... Read more
Ham Radio Outlet now distributing the SDRplay RSP
Ham Radio Outlet SDRplay is pleased to announce Ham Radio Outlet as our exclusive authorized distributor in North America. Right now initial stocking... Read more
FT8CALL – The NEWEST HF Digital Mode, Introduction and Demo
FT8CALL “FT8, as we know, has dominated the airwaves for over a year now. Imagine the ability to have keyboard to keyboard ragchew, with... Read more
![Amateur Radio Emer Data Network A.R.E.D.N. [ PodCast ]](https://qrznow.com/wp-content/uploads/2016/12/IMG_0279C-190x122.jpg)
Amateur Radio Emer Data Network A.R.E.D.N. [ PodCast ]
Ham Radio Mesh Networking has been one of those things that I’ve wanted to learn about. After a quick peek around and a few questions asked, I stumbl... Read more
Unlicensed Religious Broadcaster Who Used Amateur Frequencies Ordered Off the Air
“The FCC has ordered an unlicensed California religious broadcaster, who sometimes broadcast on a frequency in the 40 meter phone band, t... Read more
