User's Manual

P25 - SRM9022 RADIO – OPERATING INSTRUCTIONS
© TMC Radio 2007 page 8 TNM-U-E-0055 Issue 2.1a
SRM9022 Key Label Function
Power On/Off
This pushbutton turns the radio on and off. To
turn the radio on, press and hold the button until
the radio turns on.
To turn the radio off, press and hold the button
for 2 seconds until the radio turns off.
PTT
Push-to-Talk. Hold the microphone about 10cm
from the mouth. Press and hold the PTT switch
and speak. Release to listen.
Volume Up
Increase Volume.
Volume Down
Decrease Volume.
Function Key F1
M
Programmable Function key.
Default – Menu Select.
Function Key F2
Programmable Function key.
Default – Channel Down.
Function Key F3
Programmable Function key.
Default – Channel Up.
Function Key F4
Programmable Function key.
Default – OK.
Function Key F5
Programmable Function key.
Default – Alarm.
Function Key F6
Programmable Function key.
Default – Reset / Cancel.
Keypad
1 2 3
4 5 6
7 8 9
* 0 #
Keypad can be used to select a Channel or
Special Function.
E.g. 12# will select channel 12.
Indicator LED Function
Green
Green LED when receiving a signal.
Red
Red LED when the radio is transmitting.