[TrunkCom] historical EDACS question

[Michael W. Scheel]

I guess by buying other local service shops. I have exhausted my 
knowledge of the subject so anything more is WAG.

Jeff Kenyon wrote:
> 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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>>>
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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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>>TrunkCom mailing list
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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/
==================================================================