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2.0 KiB
2.0 KiB
Python scripts interfacing with the API
These scripts are designed to work in Python 3 preferably with version 3.6 or higher. Dependencies are installed with pip in a virtual environment. The sequence of operations is the following:
virtualenv -p /usr/bin/python3 venv # Create virtual environment
. ./venv/bin/activate # Activate virtual environment
pip install -r requirements.txt # Install requirements
freqtracking.py
This script is used to achieve frequency tracking with the FreqTracker plugin. Ideally you would start it before connecting the Frequency Tracker plugin in SDRangel. It works continuously (daemon style) until stop via Ctl-C.
Options are:
-h
or--help
show help message and exit-A
or--address
listening address (default0.0.0.0
)-P
or--port
listening port (default8888
)-a
or--address-sdr
SDRangel REST API address (defaults to calling address)-p
or--port-sdr
SDRangel REST API port (default8091
)
With default options (no parameters) it will listen on all available interfaces including loopback at 127.0.0.1
and at port 8888
. It will identify the SDRangel API address with the first request from SDRangel and connect back at port 8091
.
Normal sequence of operations:
- Start
freqtracking.py
in a terminal - In SDRangel connect the Frequency Tracker plugin by clicking on the grey square at the left of the top bar of the Frequency Tracker GUI. It opens the channel settings dialog. Check the 'Reverse API' box. Next to this box is the address and port at which the channel will be connected. If you use the defaults for
freqtracking.py
you may leave it as it is else you have to adjust it to the address and port offreqtracking.py
(options-A
and-P
). - In the same manner connect the channel you want to be controlled by
freqtracking.py
. You may connect any number of channels like this. When a channel is removedfreqtracking.py
will automatically remove it from its list at the first attempt to synchronize that will fail.