Turn your Android phone into real VHF/UHF Walkie-Talkie (requires additional digital radio hardware/software modem)
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Raspberry Pi bareback LF/MF/HF/VHF WSPR transmitter.Makes a very simple WSPR beacon from your RasberryPi by connecting GPIO port to Antenna (and LPF), operates on LF, MF, HF and VHF bands from 0 to 250 MHz.
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Raspberry Pi bareback LF/MF/HF/VHF CW (Morse code) transmitter
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