Selecting Usa, Int, Wx Channel; Selecting Channel; Adjusting Squelch - Furuno FM-2721 Operator's Manual

3.4 Selecting USA, INT, WX Channel

Press the [CH /INT/USA] key over three seconds to
show INTL, USA, WX or ATIS (for inland waterways) at
the top of the display. Mode sequence is depending on
the initial setting. Please ask your dealer. (Only the
international mode is available at the shipment.)

3.5 Selecting Channel

Channels can be entered three ways: pressing the [CH]
[ ] [ ] keys, direct numeric key input, and in case of
CH16 by pressing the [CH16] key.
1. Press the [CH /INT/USA] key to show INTL, USA,
WX or ATIS (depending on the initial setting) at the
top of the display. For private channel, press the
[Private] key over three seconds to show CH 1 to
255 (when ATIS is selected channel number is
prefixed with"R"), CH F, CH L, or CH P.
Using [CH], [ ] [ ] keys
2. Press the [CH/INT/USA] key.
3. Operate [ ] or [ ] until desired channel appears, or
enter channel number with numeric keys. (Private
channels must be selected beforehand. Please ask
your dealer.)
Direct input
2. Press the numeric key to enter the channel.
Setting channel 16
2. Press the [CH16] key.

3.6 Adjusting Squelch

The squelch can be adjusted automatically or manually.
Automatic squelch adjustment
Optimal squelch level is automatically set to mute the
background noise level.
Press the [SQ.auto ] key over one second to turn
automatic squelch on or off. "SQ:At" appears on the
display when the automatic squelch is active.
Manual squelch adjustment
1. Press the [SQ ] to show the display "SQ:XX (XX=
current setting rate)" in reverse video.
2. Press [ ] or [ ] to adjust squelch. (If automatic
squelch is in use the indication "At" changes to a
figure.)
The squelch setting is shown next to the indication
"SQ."
15