Icom IC-9100 - Adjustments on the Rf-A Unit

ADJUSTMENT ITEM
TRANSCEIVER'S
CONDITION
OPERATION
MEASURE
POINT
ADJUST
POINT
VALUE
TX ADJUSTMENT
(TX power)
• Frequency: 14.100 MHz
• Mode: USB
• Transmitting
1) Connect an RF power meter to
[ANT1].
2) Connect an audio generator and
millivoltmeter to [MIC], and then
set it as;
Frequency : 1.5 kHz
Level
†
: 1 mV
[ANT1] L612 Max. TX power
RX ADJUSTMENT
(Sensitivity)
• Frequency: 14.150 MHz
• Mode: USB
• Receiving
1) Connect an SSG to [ANT1], and
then set it as;
Frequency : 14.1515 MHz
Level
†
: –15 dBµ (–122 dBm)
Modulation: None
2) Connect a millivoltmeter and a
speaker to [EXT-SP].
[EXT-SP] L723, L1071 Max. AF output
level
MIXER BALANCE • Frequency: 14.150 MHz
• Mode: USB
• Receiving
1) Connect a terminator to [ANT1].
2) Connect a spectrum analyzer to
the J741.
J741 R725, R726 Min. LO level
(Freq.=
78.605 MHz)
RX SUPRIOUS* • Frequency: 3.621565 MHz
• Mode: USB
• [PREAMP]: OFF
• Receiving
• Connect a millivoltmeter to [EXT-
SP].
[EXT-SP] Min. AF output
level
IMAGE REJECTION • Frequency: 14.150 MHz
• Mode: USB
• [PREAMP]: OFF
• Receiving
1) Connect an SSG to [ANT1], and
then set it as;
Frequency : 14.0765 MHz
Level
†
: +50 dBµ (–57 dBm)
Modulation : None
2) Connect a millivoltmeter and a
speaker to [EXT-SP].
[EXT-SP] R1276,
C1121
(Repeatedly)
Min. AF output
level
*: For all models except [TPE] and [KOR].
†
; The output level of the standard signal generator (SSG) is indicated as the SSG’s terminated circuit.
4-5 ADJUSTMENTS ON THE RF-A UNIT
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