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The level of VOX sensitivity is shown by a number on the LCD
Screen. At the highest level, the units will pickup softer noise
(including background noise); at the lowest level, it will pick up only
quite loud noise.
a. Press the MENU button 4 times, “VOX” icon will be
displayed and “OF” flashes on the LCD Screen.
b. Press UP button to set the VOX sensitivity into maximum
level (the maximum level is “
3
”.) To deactivate the VOX
function, press the DOWN button until “OF” appears on
the LCD Screen.
c. Press the PTT button to confirm your setting. “VOX” will
steadily appear on the LCD Screen as along as the VOX
feature is activated.
VOX operation is not recommended if the Terrain 650 will be used in
3.6 Activating the auto Channel Scan
Channel scan perform searches for active signals in an endless loop
for all 8 channels, 38 CTCSS codes and all 83 DCS codes.
a. Press the MENU button 5 times, “SC” icon will
display on LCD Screen.
b. Press UP or DOWN button to begin scanning
channels when an active signal is detected, channel
scan pauses on the active channel.
c. Press the MENU button six times, CTCSS flashes on
the LCD screen press UP or DOWN button to begin
scanning the CTCSS from 1-38.
d. Press the MENU button seven times, DCS flashes on
the LCD screen. Press UP or DOWN button to begin
scanning DCS code 1-83.
e. Press the PTT button to confirm your setting.
3.7 Call alert
Your Terrain 650 can alert you to incoming signal by emitting an audible
call tone signal.
3.7.1 Call-Ring tone
You can send a Call-ring tone to other PMR users to give an
alert that you wanted to communicate with them.
Press the Call button
You will hear a ring tone for about two seconds; “TX” icon
appears on the LCD Screen. Any other units within the
transmitting range and tuned in to the same channel and
sub-channel (if applicable) will hear the Call-ring tone.
3.7.2 Selecting a Call- Ring tone
The Terrain 650 is equipped with 5 different types of Call-Ring tones.
a. Press the MENU button eight times, the “CA” icon will
display and “01” is blinking on the LCD Screen.
b. Press UP or DOWN button to select the desired Call-ring
tone. A respective Call-ring tone sound will be played
when changing from one tone to another.
c. Press the PTT button to confirm your setting.
a noisy or windy environment.
