Smart Ptt; Conventional Talkgroup Calls; Digital Modes Only - Motorola ASTRO XTL 2500 User Manual

Smart PTT

Smart PTT is a per-mode feature that gives the system manager
better control of radio operations. When smart PTT is enabled in your
radio, you will not be able to transmit on an active mode. If you try to
transmit (press the PTT button) on a busy or active smart PTT
channel, a continuous tone sounds until you release the PTT button,
and the transmission is inhibited.
The yellow BUSY LED lights when the radio is receiving to indicate
that the mode is busy.
Three radio-wide variations of smart PTT can be enabled on your
radio:
Transmit Inhibit on
Busy Mode with
Carrier
Transmit Inhibit on
Busy Mode with
Wrong Squelch Code
Quick-Key Override

Conventional Talkgroup Calls

Digital Modes Only

This feature allows you to define talkgroups for your conventional
system. Talkgroups, combined with selective squelch operation, allow
groups of users to transparently share a conventional channel.
Talkgroups can be slaved to a personality through programming, or
you can select them.
Encryption keys are slaved to talkgroups. When conventional
talkgroups are enabled, encryption keys are changed by changing the
active talkgroup.
ASTRO XTL 2500 Digital Mobile Radio with M5 Control Head
You will not be able to transmit if any
activity is detected on the mode.
You will not be able to transmit on an
active mode that has a squelch code other
than your own.
You can override either of the two previous
transmit-inhibit states by quick-keying the
radio (two quick PTT button presses).
Conventional Radio Features
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