Tag: AFSK1200

APRS reception with Gqrx and Funcube Dongle

I don’t think I ever posted a video showing the built-in AFSK1200 demodulator and decoder in Gqrx, so here it is. The video show local APRS traffic in Copenhagen on a Sunday afternoon. I also tried to receive from the ISS but nothing heard this time.

Continue reading “APRS reception with Gqrx and Funcube Dongle”

Qtmm soundcard modem for decoding AFSK1200

Last week I started on a new experiment trying to integrate the AFSK1200 demodulator code from multimon into a simple Qt-based graphical application. This experiment had two objectives:

  1. Test the feasibility of integrating the AFSK1200 demodulator from multimon into other applications.
  2. Try using the QAudio framework from Qt for audio I/O that should work on both Linux, Windows and Mac OS X.

Continue reading “Qtmm soundcard modem for decoding AFSK1200”