Motorola APX 7000 User Manual page 93

When smart PTT is enabled in your radio, you cannot
transmit on an active channel.
If you try to transmit on an active smart-PTT channel,
you hear an alert tone, and the transmission is
inhibited. The LED lights up solid yellow to indicate
that the channel is busy.
The following table shows the variations of smart
PTT:
Mode Description
Transmit Inhibit You cannot transmit if any traffic
on Busy Chan- is detected on the channel.
nel with Carrier
Transmit Inhibit You cannot transmit on an active
on Busy Chan- channel with a squelch code or (if
nel with Wrong secure-equipped) encryption key
Squelch Code other than your own. If the PL
code is the same as yours, the
transmission is not prevented.
Quick-Key Over- Your radio must be preprogram-
ride med to allow you to use Quick-
Key Override. This feature can
work in conjunction with either of
the two above variations. You
Mode Description
can override the transmit-inhibit
state by quick-keying the radio. In
other words, two PTT button
presses within the preprogram-
med time limit.
Transmit Inhibit
This feature is available for APCO 25 trunking, Type II
trunking and Conventional operations for all APX
radios.
When Transmit Inhibit feature is enabled, the radio
stops all transmission including voice and data. The
radio could receive messages but not replying the
acknowledgement request of the received message.
User could physically control the transmission of the
radio especially during operation in hazardous
environments with this feature. An environment is
considered hazardous when the power emitted by the
radio power amplifier could initiate an explosion or
other dangerous reactions.
When the Transmit Inhibit feature is disabled, the
radio functions according to its normal operations.
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English