Motorola GP540 User Manual page 38

• Transmit Inhibit on Busy Mode with Wrong
Squelch Code—you are prevented from
transmitting on an active mode with a squelch
code other than your own. If the PL code is the
same as yours, you are allowed to transmit.
• Quick-Key Override—This feature can work in
conjunction with either of the two above
variations. This feature allows you to override
the transmit-inhibit state by quick-keying (two
PTT presses within a programmable period --
the default is one second -- of each other) the
radio.
34
English
Note: If you try to transmit (press the PTT) on a
smart PTT mode that is busy, a continuous alert
tone is generated until the PTT is released; the
transmission is inhibited.
• The red LED blinks when the radio is
receiving indicating that the mode is busy.