[TrunkCom] rebanding and an update with Grosse Pointe

[Jeff Kenyon]

I don't know about 700 MHz in Cnnada, but we were told in Michigan that 
because we are so close to Canada it will be longer before 700 MHz becomes 
available to us.
----- Original Message ----- 
From: "JERRY NONE" <thepolishdude at yahoo.com>
To: "Discussion of Monitoring Trunk Radio Systems" 
<trunkcom at mailman.qth.net>
Sent: Thursday, March 17, 2005 9:19 AM
Subject: Re: [TrunkCom] rebanding and an update with Grosse Pointe


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> What about 700 Megacycles in the Dominion OF Canada.
> Are they moving too?
>
>
> What is a SPLINTER FREQUENCY?
>
>
> --- Jeff Kenyon <at649 at tcnet.org> wrote:
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>> Well, this should be interesting, and will be a few
>> years out still, and
>> hopefully all that will need to be done is just
>> reprogramming all the user
>> units, but I would think that patching from band to
>> band would be a
>> concern since it isn't like patching trunked to
>> conventional like they did
>> when we made the cut over in 2001.  Also, it is
>> because of Canada why we
>> haven't gotten 700 MHz here in Michiga yet.
>>
>>
>>
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>> On Wed, 16 Mar 2005, Mike VanderVeer wrote:
>>
>> > Win a new Icom IC-756PROIII and help QSL/QTH.net
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> _____________________________________________________________________
>> >
>> >
>> >
>> >
>> >
>> >
>> > > So this makes them to be splinter systems with
>> the Pro-96 then?
>> > > Also, by the way there are no plans believe it
>> or not to move the
>> > > Grosse Poitne CC to 9600, so an older first
>> generation digital
>> > > scanner will work just fine with that system.
>> Also, the county
>> > > hasn't installed anything in Grosse Pointe for
>> the county, and as we
>> > > talked about on the other list Detroit's move is
>> taking it's time
>> > > and there is no encryption for Grosse Pointe, at
>> least not for now.
>> >
>> > Actually no, it will not become a splinter system,
>> at least not for sure.
>> > The bandplan for frequencies from 851 to 854 Mhz
>> is changing to 12.5khz
>> > steps.  The current bandplan goes in 25Khz steps.
>> The only real difference
>> > between the current standard and splinter systems
>> is the base frequency in
>> > the band (851.0125 vs. 851.0250).
>> >
>> > With the new bandplan, depending on the negotiated
>> treaty with Canada, all
>> > channels with 12.5khz bandwidth will be used.
>> This will change the channel
>> > to frequency map that is currently used on 3600bps
>> control channels, which
>> > will break most scanners that are out there.  This
>> includes the Grosse Point
>> > system.
>> >
>> > 9600bps systems like the MPSCS use a different
>> channel to frequency map or
>> > bandplan.  Those systems start at 851.00625 by
>> default, with 6.25khz steps.
>> > For this reason, 9600bps systems will work with
>> all scanners that are capable
>> > of working this these control channels.
>> >
>> > There is a belief that there will be a workaround
>> for the Pro-96/Pro-2096
>> > using tables to create the new band plan/Channel
>> map.  We won't know for sure
>> > though until the first 3600bps systems are
>> rebanded.
>> >
>> > Mike
>> >
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