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5.11. Selecting the display colour
Long press the LIGHT button to cycle through 7 different
backlight colours.
5.12. NRC noise filter
Long press the NRC button to switch the NRC noise filter on or
off. R appears on the display.
The noise filter suppresses interfering noises during reception
of radio messages and significantly improves audio quality.
5.13. Resetting to factory settings
To reset the device to its factory settings, proceed as follows:
•
Turn off the radio
Press and hold down the VOX button while turning on the
•
radio
•
Release the button
•
The display shows rS and after a short time the radio
restarts with the factory settings
In most cases, the radio functions have now been restored.
6. External speaker
It is advisable to connect an external speaker depending on
the ambient noise. Typical, commercial radio speakers with
4-8 ohms impedance and a minimum power of 2-4 W can be
used.
Up to a 3 metre long cable can be used. For speakers that will
be used in a vehicle, make sure that a two-pin 3.5 mm jack is
used and that none of the speaker connections are attached to
the vehicle frame.
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