⚠️ WARNING: This article is obsolete
PySquelch: A Python-Based Frequency Audio Activity Monitor
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...
--- title: PySquelch: A Python-Based Frequency Audio Activity Monitor date: 2009-07-26 00:22:12 tags: python, old --- # PySquelch: A Python-Based Frequency Audio Activity Monitor __I'm pretty much done with this project so it's time to formally document it.__ This project is a collaboration between Fred, [KJ4LFJ](http://www.qrz.com/kj4lfj) who supplied the hardware and myself, Scott, [KJ4LDF](http://www.qrz.com/kj4ldf) who supplied the software. Briefly, a scanner is set to a single frequency (147.120 MHz, the output of an [active repeater ](http://www.147120.com/) 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: <div class="text-center"> [](test_24hr-1.png) [](test_average.png) [](test_alltime-1.png) [](test_60min.png) </div> __Live-running software is current available at: [Fred's Site](http://kj4lfj.dyndns.org/147120/stream-data/pySquelch.html)__. The most current code can be found in its working directory. For archival purposes, I'll provide [the code for pySquelch in ZIP format](http://www.SWHarden.com/blog/images/pysquelch.zip). Now, onto other things...