179
17
MAINTENANCE
N
&REQUENCYCALIBRATION
APPROXIMATE
[PBT-CLR]
[
]
(MAIN Band)
[
]
(MAIN Band)
[
]
[
]
[
] [
]
[
]
[
]
[MAIN DIAL]
Ù
68
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O F F
SET
C a l i b r a t i o n M a r k e r
Ù
69
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5 0 %
SET
R E F A d j u s t
s#ALIBRATIONMARKERITEM
s2%&!DJUSTITEM
A very accurate frequency counter is required to cali-
brate the frequency of the transceiver. However, a
rough check may be performed by receiving radio sta-
tion WWV, WWVH, or other standard frequency sig-
nals.
#!54)/.
The IC-9100 has been thoroughly ad-
justed and tested at the factory before being
SHIPPED9OUSHOULDNOTHAVETORECALIBRATEIT
q
Push [SSB] to select the USB mode.
w
Push [PBT-CLR] for 1 second to clear the PBT set-
tings and make sure that the RIT/
∂
TX function is
not turned ON.
e
Set the frequency to the standard frequency station
minus 1 kHz.
s
When receiving WWV or WWVH (at 15.000.00 MHz) as
a standard frequency, set the operating frequency for
14.999.00 MHz.
s/THERSTANDARDFREQUENCIESCANALSOBEUSED
r
Hold down [MENU] for 1 second to enter the Set
mode.
t
Push [
Y
](F-1) or [
Z
](F-2) to select “Calibration
Marker.”
y
Rotate [MAIN DIAL] to turn ON the calibration
marker.
s!SIDETONEMAYBEHEARD
u
Push [
Z
](F-2) to select “REF Adjust.”
i
Rotate [MAIN DIAL] to adjust for a zero beat with
the received standard signal.
s:EROBEATMEANSTHATTWOSIGNALSAREEXACTLYTHESAME
frequency, resulting in a single tone being heard.
o
Push [
Y
](F-1) to select “Calibration Marker.”
!0
Rotate [MAIN DIAL] to turn OFF the calibration
marker.
!1
Push [MENU] to save, and exit the Set mode.
The tuning tension of [MAIN DIAL] may be adjusted to
suit your preference.
The tension adjustment is located on the bottom side
of the front panel. See the figure to the right.
Slide the tension adjustment to a comfortable level
while turning the dial continuously and evenly in one
direction.
MAIN DIAL
Tuning tension
adjustment
Light
Firm
N
-AINDIALTUNINGTENSIONADJUSTMENT
