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MN004476A01-AE
Chapter 6: Advanced Features
Mode
6.24.18
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.
6.24.18.1
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
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.
6.24.18.2
Disabling Transmit Inhibition
Procedure:
1 Perform one of the following actions:
•
Switch the preprogrammed Transmit Inhibit switch to Transmit Inhibit disabled position.
•
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 transmission is back to normal operation.
124
Description
by quick-keying the radio (press PTT button
twice within the preprogrammed time limit).
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