Kenwood NX-220 K Service Manual page 44

NX-220
Item
Panel tuning mode
4. Receive * This adjustment can
Assist be performed only
in PC test mode.
5. Transmit * This adjustment can
Assist be performed only
in PC test mode.
6. Frequency * This adjustment can
be performed only
in PC test mode.
44
ADJUSTMENT (K TYPE)
Condition
PC test mode
equipment
[Manual Adjustment]
1) Adj item: [Receive
Assist]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
Press [Apply All]
button to store the
adjustment value.
[Manual Adjustment]
1) Adj item: [Transmit
Assist]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
PTT: Press
[Transmit] button.
Press [Apply All]
button to store the
adjustment value.
1) Adj item: [Frequency] SSG
SSG output:
–20dBm (22.4mV)
(CW (without
modulation))
Caution:
Perform the frequency
adjustment under the
following conditions.
• Temperature
range of +20°C to
+26°C (+68.0°F to
+78.8°F).
(The temperature
is displayed on the
Frequency adjust-
ment screen of the
KPG-141D.)
• Use an accuracy
of 0.003ppm for
the SSG. (Use a
standard oscillator if
necessary.)
Measurement
Test-
Unit Terminal Unit
Panel
Panel ANT
Adjustment
Specifi cations /
Parts Method
[PC test [PC test mode] 2.5V±0.1V
mode] [Automatic Adjustment]
[ ],[ ] 1) Press [Tune [Automatic Adjustment]
Assist Voltage] After the auto-
button. matic adjustment
2) Press [Apply All] is performed, verify
button to store that the VCO lock
the adjustment voltage is within the
value after voltage range which
the automatic is specifi ed by the
adjustment has manual adjustment.
fi nished.
[Manual Adjustment]
[Manual Adjustment] Press [Apply All]
[V] indicator on the button to store the
PC window shows adjustment value
VCO lock voltage. after all adjustment
Change the adjust- points have been
ment value to get adjusted.
VCO lock voltage
within the limit of Note:
the specifi ed volt- The assist adjust-
age. ment value must be
between from 340
Note: to 3550.
Confi rm the VCO
lock voltage ap-
proximately 3
seconds after the
adjustment value is
changed.
[PC test mode] [PC test mode]
Press [Start] button "IF20" value =
of "Auto Tuning". Within 0±12 digits.
Press [Apply] but- The value of "IF20"
ton to store the will become around
adjustment value "0" after the adjust-
after the automatic ment has fi nished.
adjustment has
fi nished. Remark:
"Frequency" is
adjusted under
receiving condition
with SSG.
Remarks