Motorola III - Manual (Page 22)

MAEPF-22623-B (D)
Low-Battery Alert
The radio will emit an alert tone to indicate a low-
battery condition if the battery voltage falls below the
low-voltage level. The tone will be emitted when the PTT
is released in the transmit mode, and when the low-
battery condition is detected in the receive mode.
Coded Squelch Operation
Tone Private-Line® (PL), Digital Private-Line™
(DPL), and carrier squelch operation are all available in
the same 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, and you need not move any
switches for activation. Alternatively, this feature can be
programmed to the ABC switch: carrier squelch
operation in one switch position, and PL or DPL
operation in another switch position.
Whenever the radio is operating in carrier squelch,
the display will show the carrier-squelch annunciator.
SECURENET Operation
This information applies to both conventional and
trunked systems.
1. A SECURENET module must be installed in the
radio.
2. An encryption key must be loaded from a key-
variable loader (KVL), using the correct loader for
the radio’s encr yption type, into the radio’s
memory. To load the key, connect the keyloader
cable to the universal connector on the side of the
radio; refer to the KVL’s instruction manual for
l o a d i n g p r o c e d u r e . W h i l e t h e k e y l o a d e r i s
attached, the display shows “KEYLOADING.” When
the key has been loaded successfully, the radio will
sound one long beep.
Notes:
• Normal radio transmit and receive will be
disabled while the cable is connected to the
radio.
• The radio will abort a secure transmission
when there is not a valid encryption key. When
this happens, the display shows “KEYFAIL,”
and a continuous keyfail tone (consecutive
medium-pitched beeps) sounds until the PTT
switch is released.
21
21 General Radio Features Operation