Icom IC-7100 Basic Manual page 8

1
PANEL DESCRIPTION
Controller — Front panel (Continued)
!2 NOISE BLANKER KEY
(Mode: SSB/CW/RTTY/AM)
Push to turn the noise blanker ON or OFF.
➥
The noise blanker reduces pulse-type noise such
as that generated by vehicle ignition systems. The
noise blanker is not effective for non-pulse-type
noise.
• "NB" appears when the noise blanker is ON.
Hold down for 1 second to display the "NB" screen.
➥
Push to return to the previous screen.
!3 KEY SPEED/CW PITCH ADJUSTMENT KEY
(FM sec. 4, 6)
SPEED/PITCH
Push to open the Key speed/CW pitch adjustment
display.
• Rotate [M-CH] to adjust the keying speed of the inter-
nal electronic CW keyer to between 6 wpm (minimum)
and 48 wpm (maximum).
• Rotate [BANK] to shift the received CW audio pitch
and the CW sidetone pitch without changing the operat-
ing frequency.
• The CW pitch can be adjusted from 300 to 900 Hz in ap-
proximately 5 Hz steps.
• Push again to close the window.
!4 NOISE REDUCTION KEY
Push to turn DSP noise reduction ON or OFF.
➥
• "NR" appears when noise reduction is ON.
Hold down for 1 second to display the "NR" screen.
➥
Push to return to the previous screen.
• Rotate the Dial to adjust the DSP noise reduction
level. Set for maximum readability.
PWR
AF RF/SQL
TX / RX
CLR
M-CH BANK
PBT RIT
RIT MENU NB
TUNER/CALL MIC/RF PWR SPEED/PITCH
!2 !3 !4
(FM sec. 5)
NB
(FM sec. 5)
NR
i7100
NR NOTCH SET AUTO TUNE RX
P.AMP ATT DR QUICK
!6 !7 !8 !9 @0
!5
!5 PREAMP•ATTENUATOR KEY
❍ PREAMP KEY Operation (FM sec. 5)
(Frequency band: HF, 50/70 MHz)
Push to select one of two receive RF preampli-
fiers, or to bypass them.
• "P. AMP1" is a wide dynamic range preamplifier. It is
most effective for the 1.8 to 21 MHz bands.
• "P. AMP2" is a high-gain preamplifier. It is most effec-
tive for the 24 to 70 MHz bands.
• No indicator appears when the preamplifiers are not
selected.
✔ What is the preamplifier?
The preamplifier amplifies signals in the front end
to improve the S/N ratio and sensitivity. Select "P.
AMP1" or "P. AMP2" when receiving weak sig-
nals.
(Frequency band: 144/430 MHz)
Push to turn the preamplifier ON or OFF.
• "P.AMP" appears when the preamplifier is ON.
❍ ATTENUATOR KEY Operation (FM sec. 5)
➥ Hold down for 1 second to turn ON the attenu-
ator.
• "ATT" appears when the attenuator is ON.
➥ Push to turn OFF the attenuator.
• "ATT" disappears.
✔ What is the attenuator?
The attenuator prevents a desired signal from be-
ing distorted when very strong signals are near it,
or when very strong electromagnetic fields, such
as from a broadcasting station, are near your lo-
cation.
1-4
CS SPEECH
�
XFC MPAD
@1
P.AMP
ATT