Furuno GP-170 Operator's Manual page 60

7. DISPLAYS
Elevation
The area set on [Elevation Mask] is displayed in white. See "Satellite elevation" on
page 9-5 for how to set elevation mask.
Beacon
The beacon display shows the beacon station information.
Beacon station information
Detailed beacon station information
Type 16 message
7-2
Elevation mask is set to 10° Elevation mask is set to 30°
Press the ◄ or ► key to
select [Next 1]* or [Next 2]*.
[Receive]: Station used for positioning
(the nearest station)
[Next 1]: Second nearest station
[Next 2]: Third nearest station
*: w/internal beacon receiver
Press the NU/CU ENT key.
Press the NU/CU ENT key.
Press the NU/CU ENT key.