July 26th, 2009
I'm pretty much done with this project so it's time to formally document it. This project is a collaboration between Fred, KJ4LFJ who supplied the hardware and myself, Scott, KJ4LDF who supplied the software. Briefly, a scanner is set to a single frequency (147.120 MHz, the output of an active repeater in Orlando, FL) and the audio output is fed into the microphone hole of a PC sound card. The scripts below (run in the order they appear) detect audio activity, log the data, and display such data graphically.
Here is some sample output:
Live-running software is current available at: Fred's Site. The most current code can be found in its working directory. For archival purposes, I'll provide the code for pySquelch in ZIP format. Now, onto other things...