[TrunkCom] digital and subaudible

[JERRY NONE]

Dude, you mentioned " later models ".  HGow can you
tell if you got a older or later model.
Since I have a Pro-92B, please explain to me as to how
I can set it to use the CONTROL CHANNEL FREQUENCY or
the SUBAUDIBLE DATA STREAM.  Thanks, man.

The area that I monitor the most, has 11 Motorola Type
II frequencies.  In some instances, when I am
listening what happens is that the conversation will
sometimes stay on the same frequency and I know that
the Talk Groups are correct because I got them from 
http://www.policecall.com and Scanning Northeast Ohio.

I always thought that the purpose of TRUNKING was so
that the conversation rotates through the frequencies
as much as possible.

Here is an example:
The mobile unit keys up, and then releases the mike,
the dispatcher comes back on the same frequency.  How
could this be, cause I thought that the moment the
mike is released then that frequncy becomes freed up
and the conversation moves to the next frequency
assigned by the Controller.  Now this does not happen
ALL THE TIME, sometimes the conversation will go
through two frequencies but rarley more than that.
I figure if a municapality is gonna go Trunked then
you might as well use all the frequencies, what is the
sense?  They could of just got 800 MHZ frequencies
without trunking.  Could the fact be that this is a
SUBURBAN system, that is why it does that?  Because it
is NOT too busy?

Now with EDACS systems, this does happen, the mike i
released and then the conversation moves to the next
assigned frequency.  By the way, if the CONTROLLER
instructs the radios what frequency to move to next,
then what is the sense of having Logic Channel Numbers
for EDACS systems.  Ain't that kinda redundant?
Now here is something interesting.  One EDACS system
has TEN LOGIC CHANNEL NUMBERS but only uses 9 of them.
Why NOT use all TEN?
--- Brian J Cathcart <scannerdude@juno.com> wrote:
> On Fri, 1 Nov 2002 09:54:48 -0800 (PST) JERRY NONE
> <thepolishdude@yahoo.com> writes:
> > Please clue me in on how this works.
> > Please explain.
> 
> Each voice channel in a Motorola trunked system
> transmits a sub-audible
> data stream.  You can actually hear it if you
> connect your scanner to a
> speaker with good low-frequency response (it's a low
> "rumble" sound). 
< Just a little off of the Top, please -SNIPPED >

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