Setting the Room Monitor
Your Terrain 850 is capable of monitoring what's happening in a room. This could be used for baby room monitoring, and
operates using the VOX function.
WARNING
The monitor will transmit any detected sound over the selected channel, which could be heard by any
other PMR user on the same channel.
WARNING
When room monitor mode is activated, the Terrain 850 will not receive sound or calls, and the PTT
button does not function.
• Press the MENU button 12 times, and the "RM" icon and "OF" flash on the LCD screen.
• Press the UP or DOWN button to set the room monitor to on (ON) or off (OF).
• Press the PTT button to confirm your setting.
Auxiliary Features
Key Lock
The key lock feature allows the user to disable the UP, DOWN and MENU buttons so that the Terrain 850
settings cannot be changed accidentally.
• To activate the key lock feature, press and hold the MENU button until the key lock "
the LCD screen.
• To deactivate the key lock feature, press and hold the MENU button until the key lock "
disappears from the LCD screen.
NOTICE
The PTT, CALL and POWER buttons will remain functional even if the key lock feature is activated.
LCD Screen Backlight
Every time a button is pressed (except the PTT and CALL button), the LCD screen backlight will illuminate for about
10 seconds.
Microphone/Earphone/Charge Jack
The Terrain 850 is equipped with sockets for a microphone/earphone (2.5 mm) and for charging (Micro USB), located
under a rubber cover on the upper right side of the unit.
FM Radio Function
While in standby mode, press and release the power button.
The FM frequency displays on the LCD screen. Press the UP or DOWN button to adjust the FM frequency channel. You
can still transmit (TX) and receive (RX) calls on your current channel, with the FM radio being interrupted during calls.
Press and release the power button to go back to PMR frequency mode.
" icon appears on
" icon
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