SRP9170/80 P25 Portable Radio – User Manual
© ComGroup Australia 2010 Page 50 TNM-U-E-0091 1.4a
When stopped on a channel, the second line from the top shows the name of the channel
from the scan group that the radio stopped on. If stopped on a channel, that channel can be
“skipped” by pressing the skip programmed function key. Once a channel is “skipped” it will
not be scanned for the duration that Zone/Channel selection.
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.
5.1.12 Keypad Lock
The Keypad Lock function prevents accidental key presses.
The keypad lock function is enabled by the Field Programmer during configuration. If this
function is activated, a key icon will be displayed in the bottom right-hand side of the display
when locked.
The PTT, Alarm Key (if assigned), 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 keys will be enabled.
The keypad will automatically re-lock after a period of 10 seconds following no key activity.
5.1.13 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.
The encryption icon will not be shown if a received signal is not encrypted when on an
encrypted channel.
The current channel’s transmit encryption key can be temporarily changed from the Crypto
menu.
When in Analogue 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 Field Programmer.