Motorola APX 4000 User Manual page 177

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.
•
or to TxIn. Press the Menu Select button
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.
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).
Note: The status of the Transmit Inhibit does not
change after the radio powers up.
Disabling Transmit Inhibition
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.
Note: If the user has disabled TX Inhibit via 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
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