RaspberryPi WSPR Beacon – WsprryPi

The inspiration to purchase a RaspberryPi originally came from reading an article about turning it into a simple HF WSPR beacon. The device will output around 10 milliwatts directly from the GPIO4 pin and once connected to antenna will transmit away!. The first step was to build a simple band pass filter, i choose 30m/10Mhz…

SelCall Tone Generator App Review

Black Cat Systems has produced a simple iOS and Andriod App that will let you send Codan* (and other tones such as DTMF, CTCSS and many HF radio communications formats) from your smart phone over the radio to connect to and interact with many radio communications standards. *23/8/13 the app has seen a version update,…