74 Conventional Radio Features
Operation (cont.)
74
Smart PTT
Smart PTT is a per-mode feature which gives the system manager better
control of radio operators. When smart PTT is enabled in your radio, you will not
be able to transmit on an active mode. Also, the monitor function will be disabled
on modes programmed with smart PTT. Three radio-wide variations of smart PTT
are available:
• Transmit Inhibit on Busy Mode—With this feature enabled, you will be
inhibited from transmitting if any activity is detected on the mode.
• Transmit Inhibit on Busy Mode with Wrong Squelch Code—With this
feature enabled, you will be inhibited from transmitting on an active mode
with a squelch code or (if SECURENET-equipped) encryption key other than
your own. If the PL or encryption code is the same as yours, the
transmission will not be inhibited.
• Quick-Key Override—This feature can work in conjunction with either of the
two above variations. With this feature enabled, you will be able to override
the transmit-inhibit state by quick-keying (two PTT presses within one second
of each other) the radio.
Smart PTT radio operation is exactly the same as standard radio operation,
except that, if you try to transmit (press the PTT) on a smart PTT mode, a
continuous alert tone is generated until the PTT is released; the transmission will
be inhibited.
The red LED will blink when the radio is receiving to indicate that the mode is
busy.
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