Function Instructions; Key Introductions - Retevis Rb645 Bedienungsanleitung

Function Instructions:

1.Working Frequency Range PMR446
2.16 memory channels
3.English voice broadcast
4.50 CTCSS, 210 DCS
5.TOT
6.Battery save function
7.VOX function
8.Low battery alert
9.Scan function
10.Emergency alarm
11.Channel Lock
12.Scan
13.Monitor

Key Introductions

TX/RX Indicator
Volume + (Side Key 1)
Volume - (Side Key 2)
PTT : transmitting
CH + : shortly press is channel +. Long press the key for 3s to lock the channel and the radio makes a toot
sound. After locking, press CH + and CH- are ineffective. Long press the key for 3s again and the radio makes a
toot to unlock.
Power Key Long press the key for 3s to turn on the radio and the radio broadcasts power on and the current
channel number. Press the key again to turn off the radio and the radio has an OFF prompt.
Volume + (Side Key 1): shortly press the key to increase the volume.
Volume - (Side Key 2): shortly press the key to decrease the volume.
Antenna
PTT
PTT
CH +
Earpiece jack
Type-C charging jack
Power
CH -
MIC
Speaker
01