More Reviews and Discussion on the Airspy HF+
Recently a few more reviews of the HF+ have been released and we list some of them below for those thinking about purchasing one. SDRPlay RSP-1A vs. Airspy HF+ on Shortwave and Medium Wave In this...
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Antennas for Receiving Shortwave Indoors with an SDR
Over on the swling.com blog admin Thomas has been exploring various indoor antenna options for pairing with an HF capable software defined radio. He notes that unless you happen to live in isolation,...
View ArticleIdentifying Noise Sources in the Shack using an SDR and an Active Receive Loop
Over on YouTube user SignalSearch has uploaded a video showing how he uses an active magnetic loop antenna indoors to identify local noise sources. Magnetic loop antennas are directional, meaning that...
View ArticleListening to SELCAL and the HF Air Band with an RTL-SDR
Over on YouTube content creator Tech Minds continues to upload informative RTL-SDR based videos, this time discussing SELCAL and the HF Air Band. For international flights it is common for aircraft to...
View ArticleVideo Tutorial on Decoding FT-8 and RTTY with an SDRplay RSP1A
Over on YouTube radio content creator Techminds has recently started a series that shows how to decode various signals using an SDR such as the SDRplay RSP1A. The first video explains what FT-8 is and...
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Video Comparing the RSP-1A Against the Airspy HF+, and Testing out the Airspy...
Over on YouTube icholakov has uploaded two new comparison videos. The first compares the Airspy HF+ against an RSP-1A on HF signals with a W6LVP receive loop antenna in a noisy suburban backyard in...
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Tutorial: Setting up a Low Cost QRP (FT8, JT9, WSPR etc) Monitoring Station...
QRP is amateur radio slang for 'low transmit power'. QRP digital modes such as FT8, JT9, JT65 and WSPR are modes designed to be transmit and received across the world on low transmit powers (although...
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Testing out the New Airspy HF+ Preselector
The Airspy team have recently been working on a preselector retrofit product for their HF+. The Airspy HF+ already has excellent dynamic range and sensitivity, but by adding a preselector they seek to...
View ArticleArchiving Shortwave History with Software Defined Radio
Broadcast shortwave radio is not always archived for long at the station, so finding sound bites from interesting historical events can be difficult. We know that songs are of course recorded, but talk...
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Japanese RTL-SDR Products Now Available for International Shipping on...
Thanks to 'Nobu' for letting us know that his RTL-SDR products sold on Amazon.co.jp are now available for international shipping (in Japanese, please use the Google Translated version if needed)....
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An Introduction to SDR and SDR Applications for Shortwave Listeners
Over on the SWLing Post blog, author Thomas Witherspoon K4SWL has uploaded a new article titled "Software Defined Radio Primer Part 1: Introduction to SDRs and SDR applications". The article originally...
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World Radio TV Handbook (WRTH) Reviews the Airspy HF+
The World Radio TV Handbook (WRTH) is a directory book (or CD) of world radio stations on LW, MW, SW and FM. In addition to the directory they also do reviews of radios/SDRs, and recently they reviewed...
View ArticleCreating a Standalone WSPR Receiver with an RTL-SDR V3 and Raspberry Pi 3
Thank you to Zoltan for submitting his scripts for installing the rtlsdr-wsprd WSPR decoder onto a Raspberry Pi, and showing us how to configure it for an RTL-SDR V3 dongle running in direct sampling...
View ArticleUsing an Airspy HF+ with SDR# and WSJT-X to Decode FT8 + SpyServer FT8...
Over on YouTube user TheGazLab has uploaded a video that reviews the Airspy HF+, and also shows how to use the HF+ with SDR# and WSJT-X in order to create a FT8 monitor. The Airspy HF+ is high dynamic...
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Reducing HF Electrical Noise by Using a Faraday Cage for Switch-Mode Power...
Over on his blog, DXer OH2-2192 was frustrated by lots of local electrical noise showing up on the HF bands on his Airspy + Spyverter SDR receiver. He discovered that the majority of the noise he was...
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Elektor SDR Hands-on Book + Arduino Shield HF SDR
Elektor is a popular electronics magazine and hobbyist kit store. Recently they have published a book titled "SDR Hands-on Book" written by Burkhard Kainka. The book is intended as a companion to their...
View ArticleHermes-Lite: A Low Cost Amateur Radio SDR Made from A Repurposed Cable Modem...
The HPSDR Hermes SDR is an open source amateur radio SDR transceiver project that was released as far back as 2011. More recently Steve Haynal has been working on a Hermes-Lite project which is...
View ArticleDemonstrating HFDL Reception with a Cloud-IQ SDR and MultiPSK
Over on YouTube user Shortwave Bavaria has uploaded a video that demonstrates HFDL reception. HFDL is short for High Frequency Data Link and is a signal used by aircraft to communicate short messages...
View ArticleDecoding FT8 with an RTL-SDR Blog V3 in Direct Sampling Mode
Over on YouTube user ModernHam has uploaded a useful tutorial showing how to use our RTL-SDR Blog V3 dongles for FT8 monitoring. The RTL-SDR Blog V3 has a built in direct sampling circuit which allows...
View ArticleHomebrew SDR Transceiver for HF Operation
Traditionally when we think about Software-Defined Radio we’re thinking about little USB adapters that unlock a world of radio in the palm of our hands. This is done by allowing us to directly sample...
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