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4-3 RECEIVER ADJUSTMENT
RX
SENSITIVITY
REPEATER
SENSITIVITY
• LCD display
: A02 LW HRTUN
• Connect a standard signal generator
to the [RX] antenna connector and set
as:
Frequency
: 173.925 MHz
Level
: 32 µV* (–77 dBm)
Modulation
: 1 kHz
Deviation
: ±3 kHz
• Receiving
• LCD display
: A03 LW MRTUN
• Connect a standard signal generator
to the [RX] antenna connector and set
as:
Frequency
: 162.075 MHz
• Receiving
• LCD display
: A04 LW LRTUN
• Connect a standard signal generator
to the [RX] antenna connector and set
as:
Frequency
: 150.075 MHz
• Receiving
• LCD display
: A05 LW RPTSQL
• Connect a standard signal generator
to the [RX] antenna connector and set
as:
• Connect an RF power meter or 50
Ω
dummy load to the [TX] antenna con-
nector.
Frequency
: 150.075 MHz
Level
: 0.2 µV* (–121 dBm)
[USA2], [GEN2], [GEN4]
: 0.32 µV* (–117 dBm)
[EUR2], [FRG2]
Modulation
: 1 kHz
Deviation
: ±3 kHz [Other]
: ±2.4 kHz [FRG2]
• Receiving
RX
FRONT
Connect a digital multi
meter or oscilloscope
to check point CP18.
Speaker
Maximum
voltage
Maximum
voltage
Maximum
voltage
Squelch open
FRONT
FRONT
FRONT
FRONT
[PRT/BASE]
/[MONI]
[PRT/BASE]
/[MONI]
[PRT/BASE]
/[MONI]
[PRT/BASE]
/[MONI]
ADJUSTMENT
ADJUSTMENT CONDITIONS
UNIT
LOCATION
VALUE
UNIT
ADJUST
MEASUREMENT
ADJUSTMENT
CP18
CP1
CP18
RX sensitivity chack point
• RX UNIT TOP VIEW
Содержание IC-FR3000 Series
Страница 1: ...VHF FM REPEATER iC fr3000 iC fr3100...
Страница 68: ......
Страница 69: ...S 14004MZ C1 2003 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan...
Страница 70: ...UHF FM REPEATER iC fr4000...
Страница 135: ......
Страница 136: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13913MZ C1 2003 Icom Inc...