From: Don Schaefer (redwolf@wt.net)
Date: Mon Feb 17 2003 - 00:50:51 EST
HI Jay
Sounds like an interesting project I would be most interested in doing
some testing for you if you are needing
people to try it out. Please replay on my private e-mail if you are
interested.
73
Don Schaefer
Communication Specialist
Spring, Texas
E-mail: redwolf@wt.net
CrazyC wrote:
>Hi all...
>
>This is just a heads up to let ya all know that I have a working TrunkTracking program
>for the PCR-1000. It uses the sound card to decode the control channel and has options
>to display the Control Channel Info info like Trunker including a dump listing...
>
>It currently supports the Motorola type formats except APCO-25(9600 baud)..
>In San Diego, I've tested it on the older TypeII system and Astro (Apco-25 3600 baud)...
>With the TypeII system I get a signal of S-3 to S-5 and get a recovery rate from 90% to 100%.
>And with the RCS South system I get a signal of S-7+, I get a constant recovery rate at 100%...
>
>I started out this project using the code from MDT Monitor which uses the sound card to decode
>mdt traffic. I added the basic code from Trunker to decode the Outbout Signaling Words. In this
>way I was getting a recovery rate about 50% to 70% which wasn't good enough...
>
>I then added code from the public released code from 'Capture' by Rick Parrish, specifically the Pll
>section from that and the Pll section from 'Trunker'... After some tinkering I was getting a recovery rate
>to %80, but still not good enough...
>
>I then turned to my OLD decoding algorithms from my Atari 800 that I used to decode RTTY through the PIO
>port... And after some tweaking here and there and trying different sampling rates I finally acheived 100% with a good signal source :-)
>
>
>So now, I am in the finishing stages of adding the final touches to the GUI and program operation...
>
>If there is something that you would like to see in the application, please let me know and I'll see what I can do...
>
>I should be releasing it to the public in the next couple of weeks for trial and beta testing...
>
>Regards,
>Jay
>
>
>
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