Furuno FM-2710 - Manual (Page 20)

16
3-1-1. Controls
1) Volume Control(Power on/off)
Turns the radio on /off and adjusts volume of the speaker.
2) Channel Selector
Selects channels.
3) Squelch Control
Adjusts the squelch. Rotate the control counterclockwise until noise is heard,
then rotate it clockwise slowly until noise just fades out.
4) [16] Key
Immediately selects CH16. Next pressing returns control to previously
selected channel.
16
CH
OFF
VOLUME
SQUELCH