Motorola APX MOBILE O3 CONTROL HEAD User Manual page 134

Enabling Transmit Inhibition
Perform one of the following actions:
•
or
below TxIn.
• Turn off the ignition through Ignition Sense
Line.
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.
The softkey TxIn is created to ease the user
of inhibition transmission besides relying
solely on Ignition Sense Line. Only if the
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English
to TxIn. Press the Menu Select button
Ignition Sense Line is on, the softkey TxIn
works. If the Ignition Sense Line is on, user
can always turn on or off the Transmit
Inhibition using the softkey TxIn; but when the
Ignition Sense Line is off, function of softkey
TxIn is suspended, and the Transmit
Inhibition function is always off.
If PTT TX Inhibit is enabled, when using multi control
head with one active configuration, with the PTT
pressed on the active control head, any press on the
programmable button of the other control head which
meant for that control head to be active control head
will cause an unstoppable long low-pitched tone (Talk
Prohibit Tone). The display shows Tx inhibit. This
behavior can be stopped by pressing PTT button
again on the active control head
Disabling Transmit Inhibition
Perform one of the following actions:
•
or to TxIn. Press the Menu Select button
below TxIn.
• Turn on the ignition through Ignition Sense
Line.