ftl / sdrainer

Combine a pasta strainer with a Software Defined Radio and you get a SDRainer.

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

sdrainer's Issues

priovide useful console output in the decode mode

In decode mode write the decoded characters to stdout.

add CLI flag to activate log output on the console

By default there should be NO log output on the console, which means neither stdout nor stderr.

• Provide a CLI flag --debug to explicitly activate the log output on stderr.
• If the flag is not set, no log output must be written to stderr.

Currently there is no support for log files or other mechanisms (e.g. syslog or similar) planned. If the flag is not set, there will simply be no log output available.

provide useful console output in strain mode

In strain mode write information about certain events to stdout:

• listener activated on frequency
• listener deactivated on frequency
• callsign decoded on frequency (including count and weight)
• callsign spotted on frequency
• spot timeout on frequency (callsign not heard for a certain amount of time)