Retevis RB637 Bedienungsanleitung Seite 3

Basic Operations and Function Description
Power ON / OFF
Rotate Volume Switch clockwise until a "Click" sound is heard, that means radio power is on.
Rotate Volume Switch anti-clockwise until a "Click" sound is heard, that means radio power is off.
Communication
Press PTT key to transmit, the indicator turns red, talk to the microphone at the moment, the other
side will hear your speaking message. Release PTT key after finishing transmitting and start to
receive the other side speaking message, when receiving the other side message the indicator
light is green at the same time.
Volume Increase / Decrease
Rotate Volume Switch clockwise to increase the volume, rotate Volume Switch anti-clockwise to
decrease the volume.
Channel Adjustment
Press PF1 / Channel Increase key, channel will increase in turns, press PF2 / Channel Decrease
key, channel will decrease in turns.
Low Battery Voltage Warning
When you hear a sound "Please charge battery" while the indicator is flashing red light, it means
battery voltage is lower than working voltage, please charging radio.
Monitor
Press the Identify key which stores Monitor function for 2 seconds, Monitor function start. Release
the key to turn off the Monitor function.
Flashlight Starts
Press the Identify key which stores Flashlight function for 2 seconds, Flashlight function is on, and
repeat this operation to turn off flashlight.
Alarm Function Starts
Press the Identify key which stores Alarm function for 2 seconds, Alarm function is starts, and
press the PTT key to turn off.
VOX ON
Keep pressing PF1/PF2 the side key function definition key which stores VOX function for 2
second to turn on the VOX. Repeat operation to adjust the VOX function level. The higher the
level, the smaller the voice of the voice activation, and turn off the VOX with a "Beep".
VOX Delay Function
Keep pressing PF1/PF2 the side key function definition key which stores VOX delay function for 2
second to turn on the VOX delay. Repeat operation to adjust the VOX delay time. The higher the
level,the longer the delay time, and turn off the VOX with a "Beep".
Key Locks
Press the Identify key which stores Channel-Lock function for 2 seconds, the radio will give a
"Beep" sound to indicator that Channel-Lock function starts, and channel adjustment is
unavailable now. Repeat this operation to turn off channel lock function.
Scan Starts
Press the Identify key which stores Scan function for 2 second, scan function is on, and repeat
this operation to turn off scan.
Wireless copy
1.Press (no loose) the PF2 key of the receiver radio,and meanwhile turn on the radio which will
accept data, it must keep press the PF2 key for 1 second,When see the green light flashing and
hear "Beep" 3 times, the radio go into wireless copy receiving mode
2.Then press (no loose) the PF1 key of and meanwhile turn on
the other radio which is going to transmit data,and must press the PF2 key for 1 seconds,When
see the red light flashing and hear "Beep" 3 times, the radio go into wireless copy replication
mode.
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