[TrunkCom] historical EDACS question

[Jeff Kenyon]

Well, I got into trunktracking on the spir of the moment when I found out
about the list and the radioreference.com homepage, and my first
trunktracker was the BC235.  Wow, that was about 7 years ago how time
flies!  How did Racom get so large though?





On Sat, 5 Nov 2005, Michael W. Scheel wrote:

>  From what I remember (it was a long ago for some of it). General
> Electric setup the GE-MARC infrastructure and the local market was
> covered by the GE affiliated radio shops. RACOM a GE shop in
> Marshallstown. When the EDACS system came out they started to setup
> their network in the early 90's buying other local shops.
>
> I never really got into 800mhz or trunk scanning till the 235XLT came
> out. So I only remember the press releases and various newspaper items.
>
> Jeff Kenyon wrote:
> > Did this later evolve into Racom, meaning these systems?  Were they
> > purchased by Racom?
> >
> >
> >
> >
> >
> > On Fri, 4 Nov 2005, Michael W. Scheel wrote:
> >
> >
> >>At one time there was a very intensive network of G-MARC systems in
> >>Iowa. Mainly marketed to farmers and rural business. They were several
> >>still active here in eastern Iowa at least a couple of years ago.
> >>Davenport Iowa had a large one with five channels, But I can't remember
> >>hearing it in the last year. Some systems were only one or two channels.
> >>
> >>The format has a very annoying tone superimposed on the audio which
> >>could be notched out with a filter. But you had to push scan after the
> >>audio dropped off. The entire conversation usually stayed on the same
> >>channel. G-Wiz board automated the sequence of notching and resuming the
> >>scan, but I never had one.
> >>
> >>There are some models of mobiles that are dual-capable for EDACS and
> >>G-MARC. Not sure about any handhelds.
> >>
> >>That exhausts my knowledge of G-MARC
> >>
> >>Jeff Kenyon wrote:
> >>
> >>>Hi everyone, I was just wondering a few things, and they have to do with
> >>>EDACS.  When was the first EDACS system brought on line and where?  I also
> >>>was wondering what was the old GE-MARK trunked format like, and are there
> >>>still any GE-MARK systems out there?  I also was wondering about EDACS,
> >>>and is it going out with OpenSky replacing many systems in the future?
> >>
> >>
> >>--
> >>==================================================================
> >>Michael W. Scheel  N0NGL  //  ARRL // DARC // MBRS // TAPR
> >>Davenport IOWA      // RCMA IA-011 // IPMS/US #25517 QCSMS
> >>personal website  -  http://www.n0ngl.net/
> >>Quad-Cities (IA-IL) Scanning website - http://www.qcscan.com/
> >>Quad-Cities Scale Modelers Society - http://www.qcsms.org/
> >>==================================================================
> >>
> >>
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> --
> ==================================================================
> Michael W. Scheel  N0NGL  //  ARRL // DARC // MBRS // TAPR
> Davenport IOWA      // RCMA IA-011 // IPMS/US #25517 QCSMS
> personal website  -  http://www.n0ngl.net/
> Quad-Cities (IA-IL) Scanning website - http://www.qcscan.com/
> Quad-Cities Scale Modelers Society - http://www.qcsms.org/
> ==================================================================
>
>
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