How would one listen for digital radio codes 24/7? The codes are 128 bit, 345MHz carrier, ASK (Amplitude Shift Key). One 128 bit code would be received in .017s. The modulation was figured out with an RTL-SDR dongle and Audacity. I had originally hoped to use the dongle with a PC running GNU Radio …

Listening to digital radio codes 24/7

XORduino August 8, 2016, 7:54pm 12

ASK is indeed Amplitude Shift Keying. FSK is Frequency Shift Keying. PSK is Phase Shift Keying

Source: Satellite and Wireless Communications course in college

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