2. SSB RADIOTELEPHONE
2-6
2.4.3 Receiving
AM
broadcasting stations
1. When the RT screen is not displayed, press the
RT
key to display the RT screen.
2. Rotate the
ENTER
knob to select emission mode and then press the
ENTER
knob.
3. Rotate the
ENTER
knob to select AM and then press the
ENTER
knob (see section 2.1).
4. Rotate the
ENTER
knob to select RX and then press the
ENTER
knob.
5. Enter RX frequency with the numeric keys and then press the
ENTER
knob (see
“Frequency” in section 2.2).
2.4.4 Noise
blanker
The noise blanker removes pulse noise. Press the
2/NB
key on the RT screen to turn on and off
the noise blanker alternately. When the noise blanker function is active, NB is displayed on the
RT screen.
2.4.5 Noise
reduction
The noise reduction analyzes speech component and noise component, and reduces only
noise component. Press the
5/NR
key on the RT screen. Each time you press the
5/NR
key,
the effect of noise reduction changes in the sequence of (NR3 (High)
→
NR2 (Middle)
→
NR1(Low)
→
OFF). When the noise reduction function is active, NR3 (or NR2, NR1) is
displayed on the RT screen.
2.4.6 Notch
filter
The notch filter removes mixed CW or beat interference. Press the
8/NF
key on the RT
screen to turn on and off the notch filter alternately. When the notch filter function is active,
NF is displayed on the RT screen.
2.4.7 Squelch
function
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 on and off the squelch 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, SQ is displayed on the RT screen.
Squelch frequency
To adjust the squelch frequency, see section 6.3.
2.4.8 Attenuator
The attenuator reduces total gain and prevent saturation. Press the
RF GAIN/
PUSH TO ATT
knob on the RT screen to turn on and off the attenuator alternately. When
the attenuator function is active, ATT is displayed on the RT screen.
Summary of Contents for FS-2575
Page 1: ...SSB RADIOTELEPHONE FS 2575 FS 5075 OPERATOR S MANUAL www furuno co jp MODEL...
Page 14: ...SYSTEM CONFIGURATIONS xii This page is intentionally left blank...
Page 28: ...2 SSB RADIOTELEPHONE 2 8 This page is intentionally left blank...
Page 46: ...4 DISTRESS OPERATIONS 4 14 This page is intentionally left blank...
