Thank you to Derek @ok9sgc for pointing us to some work Reddit user u/Xerbot has been doing on receiving telemetry coming down from a "dead" 1960's satellite called Transit-5B5. The fleet of Transit satellites was used for military navigation with...

The "Chaos Computer Club (CCC)" have recently been uploading videos to YouTube from their "Remote Chaos Experience rC3" online conference. One talk is by Jacek Lipkowski (SQ5BPF) who presents his Etherify project which we have posted about a few times...

We have just release for sale our latest product which is an enclosure and carry case for the NanoVNA V2. It is currently on sale until the end of this week for US$14.95 including free shipping from China to most...

We have recently received samples and tested the new R860 tuner chip from Rafael Micro. However, to be clear there is no change in terms of silicon or performance between the R820T2 and the R860. It is just a change...

Sarah from the SignalsEverywhere YouTube channel is back and this time showing off a new program she has created called "Pi25" or "OP25 Mobile Control Head". The program is a Python GUI for OP25 which runs on almost any platform...

In his latest episode of his SDR Guide series Rob from Frugal Radio provides a walkthrough on using DSDPlus Fastlane to decode trunked P25 with just one RTL-SDR V3 dongle. In the video he explains each of the various DSDPlus...

Over on YouTube "Gadget Talk" has uploaded a useful video showing how he set up an RTL-SDR V3 based panadapter system to use with his traditional amateur radio. The setup involves utilizing an antenna switcher which allows him to transmit...

Over on his YouTube channel TechMinds has uploaded a new video showing how to decode signals from Orbcomm satellites. Orbcomm run a global network of low earth orbit satellites that perform services such as Internet of Things (IoT), Machine 2...

Paolo Romani IZ1MLL has recently created a SDR# users guide document which comprehensively explains all the features and settings available in the program. SDR# (aka SDRSharp) from Airpsy.com is designed for Airspy SDRs, however it is one of the most...

Thanks to Andreas Hornig who has recently released a new program called "CalibrateSDR" (GitHub code) which is designed to accurately determine the frequency offset of an SDR via an IQ recording of a DAB+ station. Cheaper RTL-SDR and SDRs use...

Back in 2017 we posted about Adam 9A4QV's simple V-Dipole antenna design which works very well for receiving NOAA and Meteor weather satellites at 137 MHz. This type of antenna is a lot easier to build compared to a QFH...

GNU Radio Days is a yearly European conference all about GNU Radio and its applications with software defined radios. GNU Radio is an open source digital signal processing (DSP) toolkit which is often used in cutting edge radio applications and...

Over on YouTube Tech Minds has uploaded a new video where he unboxes and tests a YouLoop HF Passive Loop Antenna with his Airspy. The YouLoop design is also known as a Möbius loop, or noise cancelling passive loop "NCPL"....

Over on YouTube Rob from Frugal Radio has uploaded his latest video which explains RF filters in a concise and easy to understand way. RF filters are often used together with SDRs to block out strong interfering signals which can...

A while back we heard a suggestion that it may be possible to use the 5th harmonic on R820T2 RTL-SDRs to receive frequencies much higher than the normal 1.766 GHz limit. After mentioning this to to Hayati Augen he has...

DragonOS is a ready to use Ubuntu Linux image that comes preinstalled with multiple SDR program. The creator of DragonOS, Aaron, uploads various YouTube tutorials. In his latest tutorial he shows how to install the latest version of the "Boatbod"...

Thank you to Maksim for submitting news that the International Space Station (ISS) will be transmitting Slow Scan TV (SSTV) in late December to celebrate 20 years of amateur radio operations onboard the space station. The ISS periodically transmits SSTV...

Back in October we first posted about the release of DF-Aggregator, a program by Corey (ckoval7) which can be used to receive and plot data from multiple KerberosSDR direction finding units.  If you weren't already aware KerberosSDR is our 4-channel phase...

In this weeks episode of Frugal Radio's SDR Guide videos Rob shows how a FM bandstop filter can help in certain situations. A FM bandstop is designed to reduce the power level of FM broadcast stations that are received by...

Gorizont-RTLSDR is an RTL-SDR focussed Linux distribution based on Xubuntu 20.04 LTS. Recently it was updated to V2.0.3. The creator Steve Cox writes:  New release and upgrade of gorizont linux, v 2.0.3. uploaded to sourceforge. The new AMSynch option in...

At the beginning of 2020 Annunaki (@StupotSinders) released his third party user interface for DSDPlus. DSDPlus is a digital speech decoder capable of decoding protocols such as P25 P1, DMR, NXDN and more with an SDR such as the RTL-SDR....

Over on YouTube popular science content creator Steve Mould has uploaded a video showing how he was able to open his own car using a HackRF software defined radio. In the video Steve first uses the Universal Radio Hacker software...

In this episode of Frugal Radio's ongoing SDR guide videos Rob demonstrates how you can use an RTL-SDR with DSDPlus to monitor DMR and NXDN digital voice radio communications. Rob writes: With a simple Software Defined Radio (SDR) and some...

The original NanoVNA V2+ is now available in our store for a reduced price of US$64.95 with free shipping to most countries. This price will increase in the future. The NanoVNA V2+ is a low cost vector network analyzer which...

The Arecibo Radio Telescope has collapsed. Once the largest single dish radio telescope in the world at 305m, Arecibo was mostly used for radio astronomy research. However, the dish was made famous in 1974 for deliberating beaming a message into...