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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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Hosts: Bob Heil (K9EID), Gordon West (WB6NOA), George Thomas (W5JDX), Don Wilbanks (AE5DW), Dale Puckett (K0HYD) and Amanda Alden (K1DDN) Guest: Christian Cudnik (KD0STH) New Ham Christian Cudnik, building a field strength meter, iOS apps f... Read more
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Anti-drone rifle shoots down UAVs with radio waves
Anti-drone While the US military continues to develop new and awesome ways of blowing aerial drones to smithereens, not many of these systems can easi... Read more
CR-1A COMMUNICATIONS RECEIVER
CR-1A COMMUNICATIONS RECEIVER MW-HF: General Coverage: 500 kHz – 30.000 MHz User Configurable Band Key: Amateur Band Selections: ... Read more
Yaesu FTdx10 Unboxing
ML&S display the very first unboxing of the FTdx10 in the United Kingdom. As the U.K’s only official Yaesu independent factory appointed dis... Read more
TYT MD-2017 Dual Band DMR Digital Radio Unboxing
TYT MD-2017 Features 3000 Channels 400-480MHz UHF Frequencies 136-174MHz VHF Frequencies Built-in CTCSS/DCS (Analog Mode) 5W/1W Output Power Repeater... Read more
XR4: Compact 8 Element 20m/15m/10m/6m Multi-Mono Yagi
XR4 is what you get when you add 6 meter coverage to the great XR3 antenna (see above) with the same single feedline and a scarcely longer 11.5... Read more
Latest News On the Current 2 m Band Allocation Discussion
“As most of you probably are aware, for example from the email by John, G4SWX, dated June 6th the French administration at short notice had hand... Read more
ARRL Webinar: CHIRP Programming October 20, 2016
This ARRL webinar offers a brief overview of the free, open-source CHIRP software, which can be used to program most radios. It covers what CHIRP is,... Read more
The Sun seen by the Inouye Solar Telescope
“The National Science Foundation released the first images from the Daniel K. Inouye Solar Telescope, considered to be the most detailed images... Read more
How to Build your own DMR Digital Radio Code Plug – Ham Radio Q&A
“A DMR radio isn’t any good if it doesn’t have any frequencies or channels programmed into it. Programming your first DMR radio might feel a lit... Read more
HRN 217: HOAs Oppose Parity – ARRL Fights Back on HamRadioNow
HOA’s are waking up to the Amateur Radio Parity Act, encouraging their members/residents to fight it by, let’s say ‘stretching the t... Read more
New Software Update for RS-BA1 IP Remote Control Software
Icom Inc has released a software update for their RS-BA1 Amateur radio IP remote control software offering a change in design and new features. The ne... Read more
Dominica Post-Disaster Needs Assessment Cites Amateur Radio’s Role after Maria
A post-hurricane disaster needs assessment published this past fall by the Government of Dominica points up the significance of Amateur Radio’s role i... Read more
1400 CW extremely rugged reliable RF transistor withstands VSWR > 65:1
Nijmegen, The Netherlands, May 3 – Ampleon today announced the availability of the BLCU188XRS, a 1400W, CW capable, high power extremely rugged transi... Read more
American satellite started transmitting 46 years after being abandoned in 1967
An American satellite, abandoned in 1967 as a piece of Space Junk has begun transmitting again after 46 years Lincoln Experimental Satellite refers to... Read more
A.R.I. International DX Contest 2015
Rules for non-Italians participants NEW: Log WEB Upload – ONLY – at ua9qcq.com 1. The Associazione Radioamatori Italiani (A.R.I.) h... Read more
Venerable AO-7 Satellite Continues to Deliver
The nearly 46-year-old AO-7 amateur satellite made a remarkable contact possible on May 4 between Diego Feil, LW2DAF, in Buenos Aires, Argentina (GF05... Read more
Significant update and improvements to OpenHPSDR for Apache Labs Radios
Waters & Stanton, (W&S) Europe’s Ham store, advise today of a new software release PowerSDR/OpenHPSDR PS v3.3.7 which has many new feat... Read more
Ham Radio GoBox Update 2018 by DL1GKK
Ham Radio GoBox by Karl-Heinz Krawczyk “In October 2017 I fulfilled my wish to have a digital amateur radio station as compact as possible in on... Read more