[TrunkCom] PL and connect tones

Wayne M H [email protected]
Thu, 07 Nov 2002 07:00:05 -0800


[Please don't CC me AND send to the list. I get it either way]

On Thu, 7 Nov 2002 06:47:17 -0500 (EST), JEFFREY MICHAEL KENYON
<[email protected]> wrote:

>Hi everyone.  I have been reading system information for different
>Motorola systems, and I have noticed that the connect tone freqs
>are different from PL freqs.  Why is this, and what does LTR and EDACS =
use
>for connect  ones, and are they digital or analogue?

They differ because they aren't PL tones. They serve a somewhat
similar purpose though. I'm not sure if they are digital or analog. If
a radio is given a channel grant but does not issue the correct tone
it is not allowed to pass audio over the voice channel and the channel
is dropped after a predefined time (usually 30 sec).

LTR and EDACS do not use connect tones.

-Wayne