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Kenwood NX-3720HG Service Manual page 101

Vhf digital transceiver, uhf digital transceiver
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Item
Condition
Panel tuning
mode
4.
*The
1) Adj item:
Frequency
Frequency
adjustment
can be
performed
only in PC
test mode.
Caution:
• Temperature
• Use an accuracy
5.
1) Adj item:
1) Adj item:
RTC
[RTC]
Correciton
Adjust:[****]
Press [
]
button to
store the
adjustment
value.
4.26 Transmitter Section
Item
Condition
Panel tuning
mode
1.
1) Adj item:
Maximum
[MAX_P]
Transmit
Adjust:[****]
Power
2) Adj item:
[L1]→
[L5]→
[C3]→
[H2]→
[H6]
PTT : ON
Press [
]
button to store
the adjustment
value.
Measurement
PC test mode
Test-
equipment
SSG
[Frequency]
SSG output:
-20dBm (22.4mV)
(CW (without
modulation))
Perform the
frequency
adjustment under
the following
conditions.
range of +20°C to
+33°C (+68.0°F to
+91.4°F).
(The temperature
is displayed on the
Frequency
adjustment screen
of the KPG-D3/
D3N and the LCD
of the transceiver.)
of 0.001ppm for
the SSG. (Use a
standard oscillator
if necessary.)
Frequency
[RTC Correction]
Counter
Data: [****]
Press [Apply]
button to store the
adjustment value.
Measurement
PC test mode
Test-
equipment
1) Adj item:
Power
[Maximum
meter
Transmit Power]
Ammeter
2) Adj item:
[Low1]→
[Low5]→
[Center3]→
[High2]→
[High6]
Press [Transmit]
button.
Press [Apply]
button to store the
adjustment value.
Unit Terminal Unit
Parts
Panel ANT
[Panel
tuning
mode]
[],
[]
[PC
test
mode]
[+], [-]
TX-
TEST
RX
POINT
(CN55)
Unit Terminal Unit
Parts
Panel ANT
Panel [Panel
tuning
mode]
[],
[]
[PC
test
mode]
[+], [-]
Adjustment
Specifications
Method
[PC test mode]
[PC test mode]
Press [Start] button of
"IF20" value =
"Auto Tuning". Press
Within 0±30
[Apply] button to store
digits. The value
the adjustment value
of "IF20" will
after the automatic
become around
adjustment has
"0" after the
finished.
adjustment has
finished.
Remark:
"Frequency" is
adjusted under
receiving
condition with
SSG.
Remark:
The adjustment
value should
input the display
of a Frequency
Counter.
Adjustment
Method
57.5W
±2.5W
15A or less
(No.RA054<Rev.001>)1-101
/Remarks
Specifications
/Remarks

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