Retevis RB648Plus Bedienungsanleitung Seite 9

9.One-key Cancel CTCSS/DCS
In the shutdown status, press the ▲ key and turn on the radio. The radio sends a beep sound to turn off all the CTCSS/DCS codes.
When it sends two beep sounds, restore all the channel CTCSS/DCS codes.
10.Battery Save Function
The battery save function saves the battery consumption and extends the use time. If there are no calls or other operations in 10s, the
radio will automatically enter the battery save mode. In this mode, the radio still receives the information.
11.Allow Transmission Prompt
Program to turn on the function. Press the PTT key and hear a beep sound, then speak.
12.Backlight Time
If there are no operations, the backlight will turn off automatically to reduce battery power consumption.
Backlight delay time can be set as 5s, 10s, 20s, 30s or 60s. When setting is to the time, the backlight will turn off automatically
13.TOT
When you press the PTT key to communicate over 15-600s, the radio will send a continuous warning sound and stop transmitting
automatically.
14.Companding
Program to turn on the function. It reduces the environmental background noise and improves the receiver's voice quality. It makes the
receiver's voice fidelity and performance higher.
Note: The radios need to turn on simultaneously.
15.One-key Group Call
After turning on the group call function, the radio waits for the group call channel in two-way radio mode. Set the group call channel
through the CPS. In two-way radio mode, the radio can receive the current channel or the group call channel. When the group call
channel is set to OFF, the group call function is turned off.
Set the long press function of the [▲] or [▼] key to group call through the CPS. Press the group call key and the radio will make a call
on the group call channel. Set the restore time and PTT reply through the CPS. When the radio receives the signal from the group call
channel, directly press the [PTT] key to reply to the group call channel within the restore time.
16.Easy Pairing
（1）Pair One Channel
Copy the receiving frequency and transmitting frequency on the current channel to the received RF frequency. (Note: Only for the
receiving and transmitting frequencies, CTCSS and DCS are replaced by frequency hopping codes)
Set the receiver to the copied channel and turn it off. In the shutdown status, press the small [PTT] key on the side and turn on the
radio. Wait for 3S and hear the three beep sound, release the [PTT] key and the radio enters pairing mode. Turn on the transmitter and
adjust it to the target channel. Press the PTT key to transmit and stay for a while. When the receiver hears a "beep" prompt sound and
starts to receive the voice of the transmitter, the channel has been paired successfully and saved automatically. If you need to repeat
the operation on other channels, adjust the tester to the next channel and repeat this operation to pair the frequency of each channel
one by one. After finishing, restart the radio and talk.
Note: when pairing one channel, the receiver enters the pairing mode, and the transmitter does not need. Only pair one channel once.
The receiver needs to check pair one channel through the CPS to use this function.
（2）Pair All Channels
1.Transmitter: In shutdown status, press the big PTT key on the front and the Call key for 3s, and turn on the radio. The radio sends
three beep sounds continuously twice and enters transmitting mode.
2.Receiver: In shutdown status, press the big PTT key on the front and Mon/Scan key for 3s, and turn on the radio. The radio sends
three beep sounds continuously twice and enters receiving mode.
Press the PTT key of the transmitter and the LED indicator lights up red, the radio transmits data. Restart the radio to exit the mode.
The LED indicator of the receiver turns purple to blue, the radio receives the data. After receiving the data, the radio will turn on
automatically.
17.Channel Hidden
If customers only want to communicate on Channel 1, they can hide other channels through the CPS.
18.Scramble
Turn on the scramble through the CPS, and set the scramble code 1-8 of each channel.
19.Restore Factory Setting
In shutdown status, press the PTT key on the side and ▼ key, and turn on the radio. The radio will prompt two beep sounds. Release the
keys and restart the radio to restore factory setting.
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