Icom IC-24AT - 6-2 PLL Adjustment; 6-3 Receiver Adjustment

6-2
PLL
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT
CONDITIONS
MEASUREMENT
VALUE
ADJUSTMENT
POINT
UNIT
LOCATION
UNIT ADJUST
REFERENCE
FREQUENCY
1
•
Frequency
display: 440.00
MHz
•
Transmitting
Top
panel
Loosely
couple
the
frequency
counter
to
the
antenna
connector.
440.000 MHz
MAIN
C54
6-3
RECEIVER ADJUSTMENT
An.MIQTMPNT
ADJUSTMENT
CONDITIONS
MEASUREMENT
VALUE
ADJUSTMENT
POINT
UNIT
LOCATION
UNIT ADJUST
UHF
SENSITIVITY
1
•
Frequency
display;
434.90
MHz (except
USA)
444.90
MHz (USA)
•
Set the
signal
generator;
Level :
1
0 p
V*
(-87 dBm)
Dev. :
±3.5 kHz
Mod.
:1kHz
•
[SQL]
control:
Max.
CCW
•
Receiving
LOGIC
Connect the
oscilloscope
to CPI.
Maximum
U.
COIL
Adjust
in
sequence
LI
L2
L3
VHF
SENSITIVITY
1
•
Frequency
display:
146.00
MHz (except
EUR, UK)
145.00
MHz
(EUR,
UK)
•
Set
the
signal
generator;
Level :
20
pV*
(-81 dBm)
Dev.
;
±3.5 kHz
Mod.
:
1 kHz
LOGIC Connect the
oscilloscope
to CPI.
Maximum V. COIL
Adjust in
sequence
LI
L2
L3
L4
S-METER
1
•
Frequency display:
435.00 MHz (except USA)
445.00 MHz (USA)
•
Set the signal generator;
Level :
0.35
pV*
(-116
dBm)
Dev. : ±3.5 kHz
Mod. :1kHz
FUNCTION
DISPLAY
S/RF
indicator 2 dots
DET
R26
2
•
Frequency display:
146.00 MHz
(except
EUR,
UK)
145.00 MHz (EUR,
UK)
•
Set the signal
generator;
Level :
0.35
pV*
(-11
6 dBm)
Dev. : ±3.5 kHz
Mod.
: 1 kHz
R4
CCW: Counterclockwise
•This output level of standard signal
generator (SSG) is indicated as SSG's open circuit.
6-2