[TrunkCom] does anyone know how the new scanners will handle both data and voice from the same channel?

JEFFREY MICHAEL KENYON [email protected]
Thu, 6 Jun 2002 15:18:34 -0400 (EDT)


Well, the XTS-3000 I thought could hold multiple trunked systems in the
same radio.  I know that in ours they have the 800 mutual aide freqs in
their own zone, and the all digital system.  I heard also that they would
be coming out with an XTS-1500.  Does anyone know what this radio will
have?





On Wed, 5 Jun 2002, Wayne M H wrote:

> On Wed, 5 Jun 2002 19:07:03 -0400 (EDT), JEFFREY MICHAEL KENYON
> <[email protected]> wrote:
> 
> >Well, it is all thanks to Motorola in the long run, because they were the
> >ones that APCO went to for the standard, and they then opened the
> >standard for EDACS and LTR or whoever.  I would have expected that when
> >these all strictly digital systems went on line like Grosse Pointe,
> >Michigan's system went on line last summer it has the 3600 BAUD control
> >channel, but I think that one of these days it will be upgraded to 9600
> >BAUD, especially if they are going to be working with the other trunked
> >systems around the area.  Now, I was surprised that Detroit's system now
> >is 3600 BAUD now, because my understanding was was that they were going
> >straight to 9600 BAUD.  Will the 9600 BAUD systems work in analogue
> >mode?  I thought they could, but systems that are trying out in analogue
> >now are using 3600 BAUD.
> 
> True, much of the documentation on APCO-25 has hints of Motorola. They
> did it great once, so why not choose them to help out.
> 
> 9600 baud systems don't support analog. I'm very positive about this
> and will continue so unless someone corrects me. I doubt anyone will.
> 
> >From what I've seen APCO-25 trunking is only available for 800MHz in
> the ASTRO Saber/Spectra series. Same for the XTS-3000. (The XTS-3500
> is restricted to UHF and VHF) The newer model XTS will support both,
> of course, but I believe the XTS-5000 will be the only radio which can
> support both standard and APCO-25 trunking in the same radio, but I
> don't believe at the same time on one system, maybe they will, not a
> lot of info is out since the radios are still somewhat new. These are
> also the radios which will be 700MHz capable (Comes standard with
> 800). I really haven't seen much on APCO-25 trunking outside of
> 800MHz. I'm sure Moto is working on it with the new line but it's not
> as important as 800MHz right now.
> 
> Wayne
> 
> 
> 
> 
> >On Wed, 5 Jun 2002, Wayne M H wrote:
> >
> >> The good thing about the 9600 baud control channel is it isn't
> >> strictly Motorola. The 9600 baud control channel is basically the
> >> APCO-25 standard, with relation to trunking.
> >> 
> >> If you ever get a chance to see the standards themselves they are well
> >> planned out and include for everything. They also go into exact detail
> >> on how everything works. Creating a scanner, or whatever, to track
> >> would be a snap.
> >> 
> >> The nice thing is the APCO-25 trunking control channel format will be
> >> the same, no matter which vendor, so you can use different APCO-25
> >> trunking radios. Just keep in mind that a vendor can create there own
> >> signaling words strictly for their network and radios. But I believe
> >> the basic call setup and process should be something that would be
> >> decodeable by any APCO-25 trunking radio. The 9600 baud control
> >> channel seems like something tough now but give it time, it won't in
> >> the future.
> >> 
> >> Wayne
> >> 
> >> 
> >> 
> >> On Wed, 5 Jun 2002 10:31:32 -0400 (EDT), JEFFREY MICHAEL KENYON
> >> <[email protected]> wrote:
> >> 
> >> > all All right, well I also found something out in the midst of our conversation and
> >> >that is that the higher speed 9600 BAUD control channel from Moto is
> >> >designed for this kind of thing, and is used mainly in the smart zone
> >> >kinds of systems like here in Michigan.  I think that you'll see the
> >> >higher speed controlers come when systems are linking to one another like
> >> >Grosse Pointe, Michigan's to Detroit's or whatever.  By the way, Detroit's
> >> >new TRS is up at one site, and is using the 3600 BAUD control channel, and
> >> >there are mainly digital with a few analogue talk groups, but there is
> >> >some activity with the radio techs on the older type I TRS, but I am not
> >> >close enough to monitor the current Detroit site that is on the new TRS.It
> >> >will be interesting to see if this  intograded data and voice will pose any
> >> >side effects with receiving the digital voice on the newer scanners, or
> >> >voice and some data both depending on what is sent.
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >On Wed, 5 Jun 2002, Wayne M H wrote:
> >> >
> >> >> As with all digital transmission, wireless or wireline, there are
> >> >> signaling bits to designate what's what, be it voice or digital. It's
> >> >> a moot issue really.
> >> >> 
> >> >> Wayne
> >> >> 
> >> >> 
> >> >> 
> >> >> On Wed, 5 Jun 2002 08:11:10 -0400 (EDT), JEFFREY MICHAEL KENYON
> >> >> <[email protected]> wrote:
> >> >> 
> >> >> >Good morning everyone.  The other day I was talking to a friend about the
> >> >> >new digital scanners that are coming on the market in the fall, and I'm
> >> >> >just wondering if anyone knows how they will handle instances where there
> >> >> >is both data and voice being passed through the same frequency?  That
> >> >> >issue never was brought up.  thoughts would be appreciated, and thanks in
> >> >> >advance.
> >> 
> >
>