{"id":31438,"date":"2018-04-02T06:39:18","date_gmt":"2018-04-02T10:39:18","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=31438"},"modified":"2018-04-02T06:39:35","modified_gmt":"2018-04-02T10:39:35","slug":"tudor-demos-his-raspberry-pi-powered-airspy-hf","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2018\/04\/tudor-demos-his-raspberry-pi-powered-airspy-hf\/","title":{"rendered":"Tudor demos his portable Raspberry Pi-powered AirSpy HF+"},"content":{"rendered":"

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Many thanks to SWLing Post<\/em> contributor, Tudor\u00a0Vedeanu, who has kindly shared details about his portable Raspberry Pi system which now can run the AirSpy HF+ SDR.<\/p>\n

Tudor writes:<\/p>\n

I bought the RPi to use it as a Spyserver<\/a> for my Airspy HF+ SDR.<\/p>\n

My main radio listening location is a small house located on a hill outside the city and there is no power grid there (it\u2019s a radio heaven!), so everything has to run on batteries and consume as little power as possible.<\/p>\n

My first tests showed that the Raspberry Pi works very well as a Spyserver: the CPU usage stays below 40% and the power consumption is low enough to allow it to run for several hours on a regular USB power bank. If I add a 4G internet connection there I could leave the Spyserver running and connect to it remotely from home.<\/p>\n

Then I wondered if the Raspberry Pi would be powerful enough to run a SDR client app. All I needed was a portable screen so I bought the official 7\u201d touchscreen for the RPi.<\/p>\n

I installed Gqrx<\/a>, which offers support for the Airspy HF+. I\u2019m happy to say it works better than I expected, even though Gqrx wasn\u2019t designed to work on such a small screen. The CPU usage is higher than in Spyserver mode (70-80%) but the performance is good. Using a 13000 mAh power bank I get about 3.5 hours of radio listening.<\/p>\n

I made a video showing how it works:<\/p><\/blockquote>\n