Motorola Solutions Inc. 89FT5803 ユーザーズマニュアル

Tone Private-Line (PL), Digital Private-Line 
(DPL), and carrier squelch operation are all 
available in your radio, on a per-mode basis.

When in carrier squelch operation, all traffic on 
the mode is heard. When in PL or DPL 
operation, your radio responds to only those 
messages intended for you. When this feature 
is mode-slaved, PL, DPL, or carrier squelch is 
programmed to each mode.

This feature is programmable by your 
authorized Motorola dealer.

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 cannot transmit on an active mode. 
Three radio-wide variations of Smart PTT are 
available.

•

Transmit Inhibit on Busy Mode—you are 
prevented from transmitting if any activity is 
detected on the mode.

•

Transmit Inhibit on Busy Mode with 
Wrong Squelch Code—you are pre-
vented 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 button presses within a 
programmable period -- the default is one 
second -- of each other) the radio.

If you try to transmit (press the PTT 
button) on a Smart PTT mode that is 
busy, a continuous alert tone is gener-
ated until the PTT button is released; 
the transmission is inhibited.

•

The red LED blinks when the radio is

 

receiving indicating that the mode is 
busy.