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4 - 6
4-3 RX ADJUSTMENT
RX
SENSITIVITY
• LCD display
: A03 LW MRTUN
• Connect a standard signal generator
to the RX antenna connector and set
as:
Frequency
: 465.075 MHz
Level
: 10 µV* (–87 dBm)
Modulation
: 1 kHz
Deviation
: ±3 kHz
• Receiving
RX
Connect a digital multi
meter or oscilloscope
to check point CP18.
Maximum
voltage
RX
C11
C12
C10
C27
C28
C26
ADJUSTMENT
ADJUSTMENT CONDITIONS
UNIT
LOCATION
VALUE
UNIT
ADJUST
MEASUREMENT
ADJUSTMENT
CP18
HJ4
CP1
CP18
RX sensitivity chack point
RX sensitivity adjustment
C28
C27
C10
C12
C11
C26
• RX UNIT TOP VIEW
Summary of Contents for IC-FR3000 Series
Page 1: ...VHF FM REPEATER iC fr3000 iC fr3100...
Page 68: ......
Page 69: ...S 14004MZ C1 2003 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan...
Page 70: ...UHF FM REPEATER iC fr4000...
Page 135: ......
Page 136: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13913MZ C1 2003 Icom Inc...