Local / Distant; Backlight Adjustment; Contrast Adjustment - Raymarine Ray54 Owner's Handbook Manual

Chapter 6: Menu Settings

6.3 Local / Distant

This mode toggles between full receiver sensitivity (Distant mode) and
attenuated receiver sensitivity (Local mode). Local mode is used to decrease
unwanted reception (noise). Local Mode is commonly used in areas where
interference, usually from shore based paging systems, is high.

6.4 Backlight Adjustment

This setting adjusts the backlight brightness for the LCD, microphone
keypad and main unit keypad. Choose from 8 brightness settings or OFF.
➤
To adjust the backlight setting:
1. Rotate the CH knob until the arrow points to BACKLIGHT.
2. Push the CH knob to accept. The Backlight screen appears.
3. Rotate the CH knob to select the desired backlight level. The number of
blocks illuminated on line 3 of the dot matrix display indicate the level,
one through eight. For HI all eight are illuminated; for OFF none are illu-
minated. Push the CH knob to accept.
The Distress key backlighting is never turned OFF.

6.5 Contrast Adjustment

This setting adjusts the levels of LCD contrast. Choose from 8 settings.
➤
To adjust the contrast setting:
1. Rotate the CH knob to scroll until the arrow points to CONTRAST.
2. Push the CH knob to accept. The Contrast screen appears.
3. Rotate the CH knob to select the desired contrast level. The number of
blocks illuminated on line 3 of the dot matrix display indicate the level,
one through eight. A larger number of blocks indicate a darker LCD. For
HI all eight blocks are illuminated; for LO none are illuminated.
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