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5 - 6
1
1
2
1
1
• Operating frequency:
400.000 MHz
A
440.000 MHz
B
470.000 MHz
C
490.000 MHz
D
,
E
• High/Low switch
: Low
• Connect the RF power meter or 50
Ω
dummy load to the antenna connector.
• Transmitting
• Operating frequency:
415.000 MHz [EUR] of
A
430.000 MHz [OTHER] of
A
455.000 MHz [EUR] of
B
470.000 MHz [OTHER] of
B
500.000 MHz
C
512.000 MHz
D
520.000 MHz
E
• High/Low switch
: Low
• Transmitting
• High/Low switch
: High
• Transmitting
• Operating frequency:
400.000 MHz
A
440.000 MHz
B
470.000 MHz
C
490.000 MHz
D
,
E
• High/Low switch
: Low
• Connect the audio generator to the
[MIC] jack and set as:
1.0 kHz/150 mVrms
• Set the FM deviation meter as:
HPF
: OFF
LPF
: 20 kHz
De-emphasis
: OFF
Detector
: (P–P)/2
• Transmitting
• Operating frequency:
430.000 MHz
A
470.000 MHz
B
500.000 MHz
C
512.000 MHz
D
520.000 MHz
E
• High/Low switch
: Low
• No audio applied to the [MIC] jack.
• DTCS code
: 007
• Transmitting
REFERENCE
FREQUENCY
[TXF]
OUTPUT
POWER
[POWER(LO)]
[POWER(HI)]
FM
DEVIATION
[MOD]
DTCS WAVE
FORM
[DTCS BAL]
Top
panel
Top
panel
Top
panel
Top
panel
Loosely couple a frequnecy
counter to the antenna connec-
tor.
Connect an RF power meter to
the antenna connector.
Connect an FM deviation meter
to the antenna connector
through the attenuator.
Connect an FM deviation meter
with an oscilloscope to the
antenna connector through an
attenuator.
400.0000 MHz
A
440.0000 MHz
B
470.0000 MHz
C
490.0000 MHz
D
,
E
1.0 W
4.0 W
±3.9 kHz*
1
„
±3.2 kHz
˜
±1.95 kHz*
2
ˆ
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT
LOCATION
5-3 SOFTWARE ADJUSTMENT
Select an operation using [
↑
] / [
↓
] keys, then set specified value using [
←
] / [
→
] keys on the connected computer keyboard.
Set to flat wave
form
A
: 400–430 MHz
B
: 440–470 MHz
C
: 470–500 MHz
D
: 490–512 MHz
E
: 490–520 MHz
ˆ
: N-type
„
: W-type
˜
: M-type
*
1,
*
2
W/N-type must be adjusted both *
1
and *
2
on the FM DEVIATION ADJUSTMENT.
Summary of Contents for IC-F3GS
Page 1: ...SERVICE MANUAL VHF FM TRANSCEIVERS ...
Page 39: ......
Page 40: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1V q 2000 Icom Inc ...
Page 41: ...SERVICE MANUAL UHF FM TRANSCEIVERS ...
Page 82: ......
Page 83: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1U 1 2000 Icom Inc ...