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Re: [Discuss-gnuradio] EDACS Control Channel

From: Rick Parrish
Subject: Re: [Discuss-gnuradio] EDACS Control Channel
Date: Sat, 15 Apr 2006 19:15:52 -0500
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Frank Brickle wrote:

If you poke around the net, you will probably be able to find the source for an old DOS program that decodes EDACS control channel. It's called "Trunk Tracker."
I think "Trunk Tracker" is a trademark of Uniden. See http://www.trunktracker.com/ ...

Ryan wrote:

Some details at
http://users.netropolis.net/maverick/scanners/edacs.htm for anyone
The URL provided by Ryan is from a December 1997 rec.radio.scanner newsgroup posting. That code evolved into a program called E-trunk.

Things to be wary of the code: It was written for Borland's Turbo-C compiler as a 16 bit DOS program. The size of a C "int" is 16 bits here. The program assumes direct access to an 8250 compatible UART. It installs it's own interrupt service routine. It uses the progammable timer-counter as a time-reference.

You can find information about E-trunk on the Trunker Yahoo! groups mailing list.


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