Hi All,

  I planned on working on an FT4 decoder for the RP, but I took a close lightening hit several weeks back and it took out my RP and most of the other shared online SDRs (KiwiSDR, RTL-SDR, and RPi).  Before then though I'd successfully gotten the FT4 decoder compiled and running on the KiwiSDR in a band hopping mode and later compiled for RPi to use along with the KiwiSDR client API as a true, simultaneous multi-band FT4 decoder.  Like with my RP setup, this was feeding both PSKreporter and RBN directly without any need for PC, CW Skimmer or Aggregator.

  I've got the RP on the bench and attempting to test DC supply components in a hope the board may be repairable, but as there are no online schematics for the RP I'm not holding out much hope and any future development on my part will be unable to continue.

73

andyz - K1RA

https://k1ra.us/

On Tue, Jul 30, 2019 at 11:25 AM Bob Wilson, N6TV <n6tv@arrl.net> wrote:

I asked Pavel Demin if he had any plans to port the FT4 decoder to the Red Pitaya, as he had done for FT8 (in sdr_transceiver_ft8).  He said he had no plans right now.

Pavel pointed me to this long thread where K1RA seems to have been involved with the FT8 decoder porting and the initial design:

https://github.com/pavel-demin/red-pitaya-notes/issues/629

https://github.com/pavel-demin/red-pitaya-notes/issues/689  

I'm copying K1RA to see if he is thinking a Red Pitaya FT4 decoder might be possible.

Pavel also mentioned that there are currently 38 active users of his FT8 code, combining the tags FT8-Skimmer, Red Pitaya FT8 TRX, and STEMlab SDR FT8 TRX.  The software usage stats are at the bottom of this page:

https://www.pskreporter.info/cgi-bin/pskstats.pl  

Many other interesting statistics on this page.  FT8 is still king but FT4 is growing.  WZ7I is the top monitor.

73,

Bob, N6TV