Transmit Inhibit - Motorola APX 4000 User Manual

Mode
Wrong Squelch
Code
Quick-Key
Override

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
144
English
Description
code is the same as yours, the
transmission is not prevented.
This feature can work in
conjunction with either of the two
above variations. You can
override the transmit-inhibit state
by quick-keying the radio. In
other words, two PTT button
presses within the
preprogrammed time limit.
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.
The radio sounds alert tone when user enters or exits
this feature and also when PTT is pressed.
Note: Acknowledgement of any messages required
from the radio is not transmitted if the Transmit
Inhibition is enabled.
Enabling Transmit Inhibition
Perform one of the following actions:
• Switch the preprogrammed Transmit Inhibit
switch to Transmit Inhibit enabled.
•
to TxIn. Press the Menu Select button
or
below TxIn.
• Press the Transmit Inhibit programmable
button.
Note: If the user has disabled TX Inhibit via the
menu and then moves the switch to the position
where TX Inhibit is enabled, the new value
overwrites the menu value.