Notch Filter; Squelch; Attenuator; User Channels - Furuno FS-1575 Operator's Manual

Ssb radiotelephone
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2. SSB RADIOTELEPHONE
(High) → [NR1] (Low) → Off). When the noise reduction function is active,
is displayed on the RT screen.
2.4.6

Notch filter

The notch filter removes mixed CW (continuous wave) or beat signal interference.
Press the 8/NF key on the RT screen to turn the notch filter on and off alternately.
When the notch filter function is active,
2.4.7

Squelch

Squelch on/off
The squelch mutes the audio output in the absence of an incoming signal. Press the
3/SQ key on the RT screen to turn the squelch on and off alternately. When radio noise
is too jarring during stand-by condition, it can be muted by activating the squelch.
When the squelch function is active,
Squelch frequency
To adjust the squelch frequency, see section 6.4.
2.4.8

Attenuator

The attenuator reduces total gain and prevents saturation. Push the RF GAIN/PUSH
TO ATT knob on the RT screen to turn the attenuator on and off alternately. When the
attenuator function is active,
2.5

User Channels

The [USER CH] menu provides for registration of user TX and RX channels, where
permitted. For further details, contact your dealer. See section 6.2 for the procedure.
2-6
NOTICE
FURUNO will assume no responsibility
for the disturbance caused by the
unlawful or improper setting of user
channels.
is displayed on the RT screen.
is displayed on the RT screen.
is displayed on the RT screen.
or

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