Operation Manual

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PANEL DESCRIPTION
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!2 NOISE BLANKER KEY
NB
(AI sec. 5)
(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
SPEED/PITCH
(AI sec. 4, 6)
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
NR
(AI sec. 5)
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.
!5 PREAMP•ATTENUATOR KEY
P.AMP
ATT
❍ PREAMP KEY Operation (AI 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preamplier.Itis
most effective for the 1.8 to 21 MHz bands.
  •“P.AMP2”isahigh-gainpreamplier.Itismosteffec-
tive for the 24 to 70 MHz bands.
  •Noindicatorappearswhenthepreampliers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preamplierisON.
❍ ATTENUATOR KEY Operation (AI 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.
Controller — Front panel (Continued)
PBT RIT
TX / RX
PWR
AF RF/SQL
CLR
M-CH BANK
RIT
TUNER/CALL
MENU
MIC/RF PWR
NB
SPEED/PITCH
SET
QUICK
NOTCH
DR
AUTO TUNE RX
�
CS
XFC
SPEECH
MPAD
NR
P.AMP ATT
i7100
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