Basic Operations; Ptt Call; Access Menus And Operations - Retevis RB22 PROFESSIONAL Handbuch

Basic operations

Icon
After power on, rotate the [Power/Volume] knob to increase or decrease the volume
※ After power on, rotate [Channel Selector] knob to select your desired channel or frequency.
Note：
The operation item with the symbol " ※ " depends on the product model which has the function is valid or
equipped with this part.

PTT call

To ensure an optimal transmission, hold the radio in a vertical position at one to two inches (2.5 to 5.0
centimeters) away from the mouth.
Digital channel call
Digital calls are made as a group call, private call or All Call based on the programming of the radio. An individual
channel may be preset to one of these calling functions.
Call type
Private call
Group call
All call
Analog mode initiating and receiving calls (no signaling)
You can initiate calls to all users on the current analog channel by holding down the [PTT] key.When the call is
initiated, the TFT display displays shows
users on the current analog channel.

Access menus and operations

You can access the main menu and sub-menu options of the radio through the following steps, as well as
Turn on: turn the [Power/Volume] knob clockwise until you hear "click"
Turn off: turn the [Power/Volume] knob counterclockwise until you hear a click
After power on, press [▲] or [▼] to select your desired channel or frequency.
Making call
In standby mode, press [PTT] key
to initiate the call.When a call is
initiated, the screen displays:
When initiated a group call, the
screen displays:
When Initiated an all call, the
screen displays:
Operation instruction
Operation method
When a private call received, the screen
displays:
When a group call received, the screen
displays:
When an all call received, the screen
displays:
;The display shows
05
Receiving call
when you receive calls from other