rsp_tcp

(c)2019 F4FHH Nicolas (f4fhh@ducor.fr). Licensed under the GNU GPL V3

From 2020-1-1 rsp_tcp development is discontinued.

I would like to say big thanks to everyone who supported me during this project.

Please go to the repository of Bas ON5HB who forked this project and fixed/enhanced it.

a rtl_tcp compatible IQ server for the RSP range of SDRPlay SDR

rsp_tcp is a direct port of rtl_tcp for the RSP range of SDRPlay SDR.

As the rtl_tcp protocol is only 8 bits IQ, man will loose the major advantage of an RSP : its 14bits ADC, but :

1. It will work with any rtl_tcp capable frontend (probably), see usage below
2. As it's opensource, you could compile it on any Linux server

OPTIONS

 -a listen address
 -p listen port (default: 1234)
 -d RSP device to use (default: 1, first found)
 -P Antenna Port select (0/1/2, default: 0, Port A)
 -T Bias-T enable (default: disabled)
 -N Broadcast Notch enable (default: disabled)
 -R Refclk output enable (default: disabled)
 -f frequency to tune to [Hz]
 -s samplerate in Hz (default: 2048000 Hz)
 -n max number of linked list buffers to keep (default: 500)
 -v Verbose output (debug) enable (default: disabled)
 -E extended mode full RSP bit rate and controls (default: RTL mode)

USAGE

• RTL Tuner AGC is mapped to RSP RF AGC
• RTL AGC is mapped to LNAState (RTL AGC on = LNA enabled)
• RTL RF gain is mapped to inverse gain reduction
• RTL frequency correction is mapped to RSP setPPM
• RTL sample rates >= 2Ms/s are mapped to the RSP sample rate, RTL sample rates < 2Ms/s use appropriate decimation

BUILDING

  mkdir build
  cd build
  cmake ..
  make
  sudo make install

NOTES

• a RSP API version >=2.13 must be installed on the linux server, see sdrplay linux downloads
• I try it with SDR# frontend only. Other tests are welcome.
• It should compile and run on Raspbian (raspberry pi) (not tested)
• It should compile on windows as the initial code from rtl_tcp does

TODO

• Enhance the IF and RF gain management depending on bands
• Enhance the re-quantization from 14/12/10 bits to 8 bits

HISTORY

• Version 0.1.0: Initial build
• Version 1.1.0: Integration of the extensions and fixes made by the SDRPlay team. Many thanks to them. see their github at [https://github.com/SDRplay](https://- Version 1.2.0: Integration of some fixes made by the SDRPlay team.

CREDITS

• Open Source Mobile Communications (OSMOCOM) team for the original rtl_tcp code
• Thierry Leconte for many ideas that I found in his Airspy port of rtl_tcp
• Tony Hoyle for the initial idea
• Pothosware for the cmake build examples
• SDRPlay for the extensions to support all current RSP devices
• Bas ON5HB who forked this project and fixed / enhanced it