Icom IC-2100H

4-3
TRANSMITTER
AND
RECEIVER
ADJUSTMENTS
The
receiver
adjustments
must
be
performed
after
PLL
ADJUSTMENTS.
ADJUSTMENT
ADJUSTMENT
CONDITION
MEASUREMENT
VALUE
ADJUSTMENT
POINT
UNIT
LOCATION
UNIT
ADJUST
OUTPUT
POWER
1
•
Displayed
frequency
:
145.000
MHz [EUR.
TPE,
THA]
146.000
MHz [ITA.
USA.
SEA, LA]
•
Output
power :
High
•
Transmitting
Rear
Panel
Connect
the
RF
power
meter to
the
antenna
connector.
10 W
[THA]
25 W
[TPE]
55
W
[other]
MAIN R49
FM
DEVIATION
1
•
Displayed
frequency
:
145.000
MHz
[EUR, TPE,
THA]
146.000
MHz
[ITA, USA.
SEA, LA]
•
Output
power
:
Low
•
Connect
an
audio
generator
to
the
[MIC]
connector
and set
as:
1 kHz/ 50
mV
[USA]
1 kHz/ 20
mV
[other]
•TONE
:OFF
•
Set an
FM
deviation
meter as:
HPF : 50
Hz
LPF
:20 kHz
De-emphasis
:
OFF
Detector
:
(P“P)/2
•
Transmitting
Rear
Panel
Connect
an
FM
deviation
meter to
the
antenna
con-
nector
through an
attenuator.
±4.8
kHz
MAIN
R86
2
•
IF
bandwidth
:
Narrow
[EUR, ITA]
only
•
Transmitting
±2.0-±3.0
kHz
Verify
SENSITIVITY
1
•
Displayed
frequency
:
145.000
MHz
[EUR,
TPE,
THA]
146.000
MHz
[ITA,
USA,
SEA,
LA]
•
Connect
an SSG to
the
antenna
connector
and set as:
Level
:
32
pV*
(~77
dBm)
Deviation
:
±3.5 kHz
Modulation
: 1
kHz
•
Receiving
MAIN
Connect a
digital
multimeter
or oscil-
loscope
to
check
point
CP2.
Maximum
voltage
MAIN
Adjust
in
sequence
repeated-
ly.
L24,
L26,
L28,
L29
SQUELCH/
S-METER
(SQUELCH)
1
•
Turn into
squelch/S-meter
setting
mode.
Connect
a JIG
to the
[MIC]
connector,
then turn
power
ON,
•
Displayed
frequency
:
145.000
MHz
[EUR, TPE,
THA]
146.000
MHz
[ITA, USA,
SEA, LA]
•
R163
;
Max.
clockwise
•
Connect
an SSG
to
the
antenna
connector
and set as:
Level
:
0.071
pV*
(-130 dBm)
Deviation
: ±3.5
kHz
Modulation
: 1
kHz
•
Receiving
Speaker
At
the
point where
the
signal
just
appears.
MAIN
R163
(S-METER)
2
•
Set
an SSG as
:
Level
:
1
.0
pV*
(-107
dBm)
Deviation
:
±3.5
kHz
Modulation
: 1
kHz
•
Receiving
Display
S/RF
indicator
Push
and hold
the
[S.MW] key,
or
push
the
[MW] key
on
the
HM-98.
•
Verify
that
S-meter
shows S3
(4
dots).
*Thls
output
level of
the
standard
signal generator
(SSG)
is
indicated as SSG’s
open
circuit.
4-3
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