[TrunkCom] possible mygration to LTR or some other kind of trunking and have questions about I-call monitoring with LTR

dmccorm at charter.net dmccorm at charter.net
Mon Jun 14 20:15:26 EDT 2010


If the bus system uses groups or zones, you could see different PL, but I doubt it.

Mainly because regular LTR never needed I-Calls, you just create a new talkgroup for talk-around or a phone patch.

Regular LTR is the easiest of the trunked systems to monitor. 

---- Jeff Kenyon <jkenyon7 at rochester.rr.com> wrote: 
> Would I still have the same PL tone if there  is MDC for signaling 
> individual radios?  As I said there isn't even LTR Passport here, but just 
> regular old LTR, and these LTR systems are either all on VHF or UHF.  For 
> all the time I've been here 800 MHz has been pretty dead, with a few 
> exceptions.
>     I wonder why then there are no I-calls on LTR systems?  Also, generally 
> speaking the LTR systems have done  real well when competing with Nextel, 
> and there are always a lot of them no matter where you look no 
> radioreference.com
> ----- Original Message ----- 
> From: <dmccorm at charter.net>
> To: "Discussion of Monitoring Trunk Radio Systems" 
> <trunkcom at mailman.qth.net>
> Sent: Monday, June 14, 2010 8:04 PM
> Subject: Re: [TrunkCom] possible mygration to LTR or some other kind of 
> trunking and have questions about I-call monitoring with LTR
> 
> 
> > There are no I-Calls on LTR, however you could hear phone patch. This 
> > could be what they use. As long as it's regular LTR you can hear it.
> >
> > Also MDC1200 will support unit ID. So this could also be used on a 
> > conventional system.
> >
> > ---- Jeff Kenyon <jkenyon7 at rochester.rr.com> wrote:
> >> Hi everyone, I have a weird suspicion that out local paratransit service 
> >> here in Rochester, NY may be moving to a trunked system some time in the 
> >> future if they haven't already done so.  Unless the bus company goes out 
> >> and purchases a trunked system there is no other trunking system they 
> >> could go on around here except for the few SMR  owners who have LTR 
> >> systems.  IN talking to some people they are trying o put together a new 
> >> radio system where it is just able to be bus to dispatcher and not bus to 
> >> bus and when the dispatcher wants to call a particular bus they'd have to 
> >> key in the ID for the given bus.  I haven't noticed any changes yet, but 
> >> trunking is not out of the question right now, and the only thing I'm 
> >> noticing on the conventional freq is that there is less traffic on it 
> >> then there normally is.  What I'm wondering though is can one listen to 
> >> I-calls on an LTR trunked system with the BC-250D?  I know you can do so 
> >> with Moto or EDACS, and one of the reasons I am hold
> > ing onto my 250 is for trunktracking LTR systems when I have the chance. 
> > If this service is moving to any of the LTR systems that are all standard 
> > I'm going to be particularly interested in monitoring them be it a regular 
> > TG or I-call.
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