Specifications - Retevis Rb639P Bedienungsanleitung

13.2 Press the menu key and + key again for over 3s to turn off the channel scan function.
14. Companding Function
14.1 Companding function on/off can be set through CPS ( Checked is on, checked by default).
14.2 The programmable key can be preset as companding function through CPS. Long press the programmable
to turn on or off the companding function.
15. Monitor Function
15.1 Monitor function on/off can be set through CPS ( Checked is on, not checked by default).
15.2 The programmable key can be preset as monitor function through CPS.
·In the standby state, long press the programmable key to turn on the monitor function.
·In the monitored mode, long press the programmable key to turn off the monitor function.
16. TOT
To prevent some users from occupying the same channel for a long time, the user can turn on the TOT function.
When the user continuously transmits on the current channel to the set time, the radio will stop transmitting and
speaker makes a TOT prompt.
TOT time can be set through CPS. Selectable time: 30-180s (default: 60s).
17. Busy Channel Lockout
17.1 Busy channel lockout ON or OFF can be set through CPS.
17.2 When choosing ON and receiving the channel signal of other radios, transmission can't be proceed by
pressing PTT key and the radio makes a beep prompt.
17.3 When choosing OFF, the above situations don't appear.
18. Battery Save
To extend battery use time, the user can turn on save mode. After the function is turned on, if no effective signals
are received and no keys is operated in 10s, the radio will automatically enter save mode. In the save mode, the
radio can transmit by pressing PTT key or receive the detected signal.
19. Low Battery Alert
19.1 When the battery power is lower than 25%, the radio will make low battery alert prompt and the prompt will
ring once every 30s. Please recharge the battery. The transmission operation is banned and the radio is in the
standby and receiving mode. Please replace the new battery or recharge the battery.
19.2 When the battery power is lower than 5%, the radio will automatically turn off.
20. Restore Default Setting
In the off state, press the menu key and power key simultaneously for 5s, the radio will be turned on and the
default setting is restored.
21. Alarm
Press and hold the preprogrammed Alarm key for 3s and the alert tone begins to sound. There is no need to
continue to hold the Alarm key or use PTT key to transmit. The other radios that set the same channel and
CTCSS/DCS will hear a steady tone for 8s followed by the voice transmission for 22s.

SPECIFICATIONS

Frequency Range
Rated Voltage
Memory Channel
Frequency Sensitivity
Antenna Impendance
Operation Temperature Range
RF Power
Modulation Type
Modulation Distortion
Adjacent Channel Power
Audio Response
Max FR. Deviation
Spurious Radiation
Current
HUM & Noise
Intermediation Sensitivity
RB639P-CE
PMR446
3.7V DC
16
±0.5ppm
50Ω
-20℃~+55℃
≤0.5W
FM
<5%
≥60dB
-13.5 ~+10.5 dB
≤±5KHz
≤-36dBm@≤1GHz；≤-30dBm@＞1GHz
≤500mA
＞35dB
4-11mv
04