Icom IC-7600

4 - 15
4-8 RF UNIT ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION OPERATION
ADJUSTMENT
POINT
VALUE
PRESET • Frequency : 14.100000 MHz
• Mode : CW
• [DUALWATCH] : "OFF"
• [ATT] : "OFF"
• [RF/SQL] : Center position
• [RF POWER] : "MAX"
• Transmitting
• Set 2 trimmer capacitors to the
preset position as illustrated below.
C1238, C1036 (as shown)
TX PEAK • Frequency : 14.100000 MHz
• Mode : USB
• [MIC GAIN] : Center position
• Transmitting (Max. power)
1) Connect a RF Voltmeter to J201.
2) Adjust the output voltage.
L1553
Maximum
voltage
RX
SENSITIVITY
(MAIN BAND)
1 • Frequency : 14.100000 MHz
(Main band)
• Mode : USB
• [FIL] : 2.4 kHz
• [TWIN-PBT] : "Center"
(Push [PBT-CLR] for 1 sec.)
• [P.AMP1] : "ON"
• Receiving
1) Connect an SSG to [ANT1] and set
as;
Frequency : 14.101500 MHz
Modulation : None
Level : 0 dBµ
†
(–107 dBm)
2) Connect an AC Millivoltmeter and a
speaker to [EXT-SP].
3)
Adjust the receive sensitivity by
tuning the core.
L1211 has two peak points. Tune
the core in the upper portion
.
L1211, C1238
(L1211: Peak
point in the upper
portion)
Max.
sensitivity
(Minimum
noise level)
(SUB BAND) 2 • Frequency : 14.100000 MHz
(Sub band)
• Mode : USB
• [DUALWATCH] : "ON"
• [FIL] : 2.4 kHz
• [TWIN-PBT] : "Center"
(Push [PBT-CLR] for 1 sec.)
• [P.AMP1] : "ON"
• [BALANCE] : "SUB MAX"
• Receiving
1) Connect an SSG to [ANT1] and set
as;
Frequency : 14.100000 MHz
Modulation : None
Level : 0 dBµ
†
(–107 dBm)
2) Connect an AC Millivoltmeter and a
speaker to [EXT-SP].
3)
Adjust the receive sensitivity by
tuning the core.
L1011 has two peak points. Tune
the core in the upper portion
.
L1011, C1036
(L1011: Peak
point in the upper
portion)
Max.
sensitivity
(Minimum
noise level)
MIXER
BALANCE
(MAIN BAND)
1 • Frequency : 1.907500 MHz
(Main and sub
bands)
• [DUALWATCH] : "ON"
• [FIL] : 2.4 kHz
• [TWIN-PBT] : "Center"
(Push [PBT-CLR] for 1 sec.)
• [P.AMP1] : "ON"
• Receiving
1) Connect a Spectrum Analyzer to
J1651.
2) Adjust the leaking LO signal level.
R1206, R1207
Minimum
leaking
level
(SUB BAND) 2• Adjust the leaking LO signal level.
R1006, R1007
†
; The output level of the standard signal generator (SSG) is indicated as the SSG’s terminated circuit.
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Core
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