jotron RA-7203C, Operator'S Manual, Page: 21 / 88

Jotron AS| TR7750C: Operators Manual
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Functional description Page 3-8
P/N: 84748 (G)
3.3 Front Panel Controls, Receiver unit
Navigation
button A
Display
Navigation
button B
Scroll / Select
Switch
ON/OFF
button
Sq / Navigation
button C
Indicators:
SQ: Squelch open (yellow)
AL : Alarm active (red)
REM : Remote ready (green)
STBY : Standby (yellow)
Headset
connector
Loudspeaker
Figure 3.3-1, Front view, receiver unit, RA-7203C
3.3.1 Display
The display shows the most important operational parameters; Channel, frequency and modulation.
In addition, the display will show several menus, submenus and operational parameters when
entering into the menu using Navigation button A.
3.3.2 Scroll/Select switch and Navigation buttons A, B and C
The navigation buttons, A, B and C, together with the Scroll/Select switch are used to navigate
through the menus.
The Scroll/Select switch has three actions: It can be turned clockwise, anti-clockwise, or momentarily
pressed in.
In general the use of the navigation buttons are:
A or Scroll/Select right: Increase a value (up)
B or Scroll/Select left: Decrease a value (down)
C or Scroll/Select press: Confirm or Enter.
The user interface will indicate which navigation button to use.
Navigation button C is dedicated to squelch ON/OFF button in the default view.
3.3.3 ON/OFF button
To switch the unit ON or OFF: Press and hold button for approx 2s
3.3.4 LED Indicators
SQ (yellow): The receiver squelch is open (receiving audio) when lit.