I've now developed an integrated Rx/fsk demod application, so on the Rx side you can do something like:
rtl_fsk -g 1 -f 144490000 - | fsk_put_test_bits - However I feel I'm flying blind without some sort of GUI to monitor the received signal. Something similar to previous Python scripts should do. Jereon - now that I'm linking with libcodec2 it's not far off being able to use your VHF packet system with TAP as well at Tomas' TUN design. It's also not far off being a FreeDV receiver, we could pipe the decoded audio to the Pis sound card. A transceiver could be implemented too, using rpitx. Cheers, David On 9/7/20 7:03 pm, Tomas Härdin wrote: > Hi > > Cool, I'll have to take a closer look at this. > > What I suspect may get tricky is the higher-level protocol stuff. It's > possible to just use straight-up Ethernet and frequency multiplexing to > avoid some of the problems that WiFi solves. At lower baudrates some > thought has to be put into header compression I think. > > I'm busy with uni things at the moment, hopefully more time should free > up for this in the coming month or so. > > /Tomas > > tor 2020-07-09 klockan 18:40 +0930 skrev David Rowe: >> Further to this I have created a new repo, added instructions, and >> started integrating the various command line applications together: >> >> https://github.com/drowe67/pirip >> >> Next step is to link rtl_sdr and the fsk demodulator into one >> application. >> >> - David >> >> On 22/6/20 7:39 am, David Rowe wrote: >>> Some good progress on support for VHF/UHF data using Codec 2 >>> modems: >>> >>> http://www.rowetel.com/?p=7207 >>> >>> - David >>> >> >> _______________________________________________ >> Freetel-codec2 mailing list >> Freetel-codec2@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > _______________________________________________ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
