[TrunkCom] Re: 220 Detroit

[Jeff Kenyon]

I wonder why they didn't look at this issue when designing digital?  That
is certainly a different route to go when handling digital and tones that
don't get a long well.  There are many ways of handling this, and some
systems that tone out will keep VHF or UHF and tone out there, and some
will patch to 800MHz and some will not.  One user on the MPSCS does
transmit the tones on both the MPSCS digital system, and VHF, and of
course thsound strange on the 800 MHz side, and some digital systems just
opt to use the pager function of the system and no tones are passed, but
are there any other systems that handle dispatch this way?  I'm assuming
that what you have is patched toone of the TRS's there some where a long
the way?





On Mon, 25 Oct 2004, Jerry wrote:

> Because the system is for dispatch only and not for actual
> fire operations there doesn't seem to be an issue.  My
> understanding is that digital is in the future.  Because
> tones and digital don't get along very well the 220 ACSB
> system was the route to take.
>
> Message: 2
> Date: Sun, 24 Oct 2004 13:09:54 -0400 (EDT)
> From: Jeff Kenyon <at649 at tcnet.org>
> Subject: Re: [TrunkCom] Re:220 Detroit
> To: Discussion of Monitoring Trunk Radio Systems
>  <trunkcom at mailman.qth.net>
> Message-ID:
> <Pine.LNX.4.58.0410241309090.24505 at hendryx.tcnet.org>
> Content-Type: TEXT/PLAIN; charset=US-ASCII
>
> How well is this working for users?  This would seem to be a
> challenge in
> different buildings and structures wouldn't it?  What would
> atract users
> to these types of systems and what types of users are on
> these systems?
>
> On Sun, 24 Oct 2004, Jerry wrote:
>
> > The SSB sounding stuff could very well be Amplitude
> > Compandored Sideband.  For example, one of the
> > communication
> > dispatch centers in the suburbs of Chicago is using the
> > 220
> > ACSB frequencies for fire department dispatching.
>
> Jerry
> Midwest Grant Pages
> http://ilgrant.home.att.net
>
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