Mode
Description
by quick-keying the radio (press
PTT
button
twice within the preprogrammed time limit).
6.25.15
Transmit Inhibit
This feature allows you to stops all transmission including voice and data. The radio can receive
messages but not able to reply the acknowledgment request of the received message.
This feature is available for APCO 25 trunking, Type II trunking and Conventional operations for all
APX radios.
You can physically control the transmission of the radio especially during operation in hazardous
environments. An environment is considered hazardous if radio transmission could initiate an explosion
or other dangerous reactions.
6.25.15.1
Enabling Transmit Inhibition
Procedure:
1
Perform one of the following actions:
• Switch the preprogrammed Transmit Inhibit switch to Transmit Inhibit enabled.
•
or to
TxIn
. Press the
Menu Select
button below
TxIn
.
• Press the
Transmit Inhibit
programmable button.
NOTICE:
If the user has disabled TX Inhibit using the menu and then moves the switch
to the position where TX Inhibit is enabled, the new value overwrites the menu value.
The display shows
Tx inhibit on
. You hear a sequence of short, low-high tones to indicate
that transmission is inhibited.
Pressing
PTT
triggers the radio sounds a constant short, low-pitched tone (reject tone).
NOTICE:
The status of the Transmit Inhibit does not change after the radio powers up.
6.25.15.2
Disabling Transmit Inhibition
Procedure:
1
Perform one of the following actions:
•
or to
TxIn
. Press the
Menu Select
button below
TxIn
.
• Press the Transmit Inhibit programmable button.
NOTICE:
If the user has disabled TX Inhibit using the softkey and then moves the switch
to the position where TX Inhibit is enabled, the new value overwrites the menu value.
The display shows
Tx inhibit off
. You hear a sequence of short, high-low tone (Transmit
Inhibit Off tone) to indicate that the transmission is back to normal operation.
MN003110A01-AK
Chapter 6: Advanced Features
103