I have had some time to hack on the GQRX receiver – my experimental AM/FM/SSB receiver implemented in Python (GNU Radio) and qith Qt GUI. Most notably, I have implemented audio recording, playback and squelch.
Qt
Qt GUI working on Mac OS X
Thanks to a tip from @blackthorne I have the gr-qtgui component of GNU Radio working on Mac OS X Snow Leopard as well. As reported earlier, previous installations worked well except the Qt GUI part which gave errors like the one reported in my email.
GQRX receiving the HO-68 satellite
The gqrx software receiver implemented with GNU Radio and Qt GUI is now taking shape and becoming useful. Yesterday evening I went to OZ7SAT and had the USRP+WBX connected to a real antenna tracking amateur radio satellites. The video below shows reception of the evening pass of HO-68, aka. XW-1.
AM/FM/SSB software receiver with Qt GUI
I have been a bit quiet over the last few weeks but don’t you worry, it is only because I have been busy and I can now present you what I have been tinkering with during the last few weeks: An AM, FM, SSB and CW receiver implemented using GNU Radio (python) and Qt graphical user interface.