Transmitter Section - Kenwood NX-700 Service Manual

Vhf digital transceiver
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NX-700/700H
Item
Panel test mode
5. Frequency
* The Frequency
adjust
adjustment can be
performed only in
PC test mode.

Transmitter Section

Item
Panel test mode
1. High
1) Adj item: [HILMT]
Transmit
Adjust: [✳✳✳✳]
Power
2) Adj item:
Limit
[L HILMT]→
adjust
[L' HILMT]→
[C HILMT]→
[H' HILMT]→
[H HILMT]
Adjust: [✳✳✳✳]
PTT: ON
Press [ ] key to store
the adjustment value.
52
ADJUSTMENT
Condition
PC test mode
equipment
1) Adj item:
SSG
[Frequency]
2) CH-Sig: 1-1
SSG output :
–20dBm (CW (with-
out modulation))
Caution:
Perform the frequency
adjustment under the
following conditions.
• Temperature range
of +23˚C to +27˚C
(+73.4˚F to +80.6˚F).
(The temperature
is displayed on the
Frequency adjustment
screen of the KPG-
111D and the LCD of
the transceiver.)
• Use an accuracy of
0.003ppm for the
SSG. (Use a standard
oscillator if necessary.)
Condition
PC test mode
equipment
1) Adj item: [High Trans-
Power
mit Power Limit]
meter
2) Adj item: [Low],
Ammeter
[Low'], [Center],
[High'], [High]
PTT: Press
[Transmit] button.
Press [Apply All]
button to store the
adjustment value.
Measurement
Test-
Unit Terminal Unit
ANT
Measurement
Test-
Unit Terminal Unit
ANT
Adjustment
Specifi cations /
Parts
Method
[ ]
[PC test mode]
[PC test mode]
Press [Start] button
"IF20" value =
of "Auto Tuning".
Within 0±12 digits.
Press [Apply] button
The value of "IF20"
to store the adjust-
will become around
ment value after the
"0" after the adjust-
automatic adjust-
ment was fi nished.
ment was fi nished.
Frequency is adjust-
ed under receiving
condition with SSG.
Adjustment
Specifi cations /
Parts
Method
[Panel
33.0W K
±3.0W
tuning
53.0W HK
mode]
[PC test mode]
[ ],[ ]
Press [Apply All]
button to store the
[PC test
adjustment value
mode]
after all adjustment
[ ],[ ]
point was adjusted.
CAUTION!
Do not attempt to
adjust the transceiv-
er's transmit output
power beyond its
specifi cations.
If the transceiver
is adjusted beyond
the specifi cations, it
may cause deterio-
ration of the parts
reliability and the
output power may
be lowered sud-
denly and unstable.
The transceiver may
be also extremely
hot.
Remarks
Remarks

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