SDRainer

Combine a pasta strainer with a Software Defined Radio and you get a SDRainer. It separates all the tasty CW signals from the ether:

• decode a CW signal from a Pulseaudio source
• find and decode CW signals in an IQ stream coming in through the TCI protocol
• show the spotted callsigns as spots on the TCI device's spectrum display
• provide access to spotted callsigns through a telnet connection, like a local DX cluster

This is work in progress, the CW decoder is still a bit inaccurate for weak signals.

Usage

Decode a CW signal from a Pulseaudio source:

sdrainer decode pulse

Decode a CW signal at the VFO A frequency of a TCI device:

sdrainer decode tci

Detect and collect callsigns from a TCI device's IQ stream:

sdrainer strain tci

Use sdrainer --help or sdrainer <cmd> <sub-cmd> --help to find out more information about the supported parameters for each command and sub-command.

Planned Features

• send spotted callsigns to a dx cluster
• add support for other SDR devices (KiwiSDR, HDSDR, SDRplay, RTL-SDR, IC-7610, FlexRadio)
• add support for other digital modes (PSK31, RTTY)

Sponsors

I started this just to scratch the itch of learning how a CW skimmer might work. If you like what I'm doing here and want to support the further development, please consider becoming a sponsor of this project.

License

This software is published under the MIT License.

Copyright Florian Thienel