Copyright © 2015 RCA Communications Systems
RPX6500 P25 MOBILE RADIO - USER MANUAL
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While stopped on a channel, the asterisk (*) icon will display.
When transmitting on a channel, the second line of display shows the name of the current
channel that the radio is transmitting on.
6.7. KEYPAD LOCK
The radio has a Keypad Lock function that prevents accidental key presses.
The RPX6500 Control Head Keypad Lock function may be enabled by the PS during
configuration. If this function is activated, a key icon
will display when the keypad is locked.
The
PTT
,
Alarm
Key (if assigned) and
Reset
Key (if assigned) are not locked.
To unlock the keypad, it is necessary to press and hold down the
OK
key for 2 seconds. After 2
seconds, the key icon will disappear and the keypad will be enabled.
The keypad will automatically re-lock after a period of 10 seconds following no key activity.
6.8. ENCRYPTION
In P25 Digital mode, radio channels may be programmed for encryption.
The encryption state of the selected channel is determined by the radio configuration. An
encrypted channel will display the
encryption icon.
A radio channel that has been programmed for encryption will receive either clear or encrypted
traffic. A transmission on this channel will be encrypted.
When on an encrypted channel, the encryption icon will not be shown if a received signal is not
encrypted.
The current channel’s transmit encryption key can be temporarily changed from the Crypto
menu.
When in Analog FM mode, there is a simple voice inversion scrambler for low security
applications.
A double beep will sound at the start of each PTT.
The scrambler function key is assigned using the PS.
6.9. EMERGENCY ALARM
6.9.1. RECEIVING EMERGENCY CALLS
When an emergency call is being received, a ‘RxEm’ message will be displayed on the default
screen indicating the radio unit sending the emergency call.
6.9.2. MAKING AN EMERGENCY CALL
The radio will change to emergency mode when the emergency key is pressed and held for
a specific time (determined by the PS). In emergency mode, the radio can operate in three PS
configurable modes:
