Instruction manual ew 500 P G4

Using the EK 500 G4
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Advanced -> Pilot Tone menu item
In the Pilot Tone menu item of the Advanced submenu, you can activate
and deactivate the pilot tone evaluation.
The pilot tone has an inaudible frequency that is sent from the transmitter
and evaluated by the receiver. It supports the receiver’s squelch function.
Advanced -> LCD Contrast menu item
In the LCD Contrast menu item of the Advanced submenu, you can adjust
the display contrast of the display panel in 16 steps.