NX-320
44
ADJUSTMENT (K TYPE)
Item
Condition
Measurement
Adjustment
Specifi cations /
Remarks
Panel tuning mode
PC test mode
Test-
equipment
Unit
Terminal
Unit
Parts
Method
4. Receive
Assist
* This adjustment can
be performed only
in PC test mode.
[Manual Adjustment]
1) Adj item: [Receive
Assist]
2) Adj item: [Low],
[Low’], [Center],
[High’], [High]
Press [Apply All]
button to store the
adjustment value.
Panel
[PC test
mode]
[ ],[ ]
[PC test mode]
[Automatic Adjustment]
1) Press [Tune
Assist Voltage]
button.
2) Press [Apply All]
button to store
the adjustment
value after
the automatic
adjustment has
fi nished.
[Manual Adjustment]
[V] indicator on the
PC window shows
VCO lock voltage.
Change the adjust-
ment value to get
VCO lock voltage
within the limit of
the specifi ed volt-
age.
Note:
Confi rm the VCO
lock voltage ap-
proximately 3
seconds after the
adjustment value is
changed.
2.5V±0.1V
[Automatic Adjustment]
After the auto-
matic adjustment
is performed, verify
that the VCO lock
voltage is within the
voltage range which
is specifi ed by the
manual adjustment.
[PC test mode]
[Manual Adjustment]
Press [Apply All]
button to store the
adjustment value
after all adjustment
points have been
adjusted.
Note:
The assist adjust-
ment value must be
between from 340
to 3550.
5. Transmit
Assist
* This adjustment can
be performed only
in PC test mode.
[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.
6. Frequency
* This adjustment can
be performed only
in PC test mode.
1) Adj item: [Frequency]
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 0.001ppm for
the SSG. (Use a
standard oscillator if
necessary.)
SSG
Panel
ANT
[PC test mode]
Press [Start] button
of “Auto Tuning”.
Press [Apply] but-
ton to store the
adjustment value
after the automatic
adjustment has
fi nished.
[PC test mode]
“IF20” value =
Within 0±12 digits.
The value of “IF20”
will become around
“0” after the adjust-
ment has fi nished.
Remark:
“Frequency” is
adjusted under
receiving condition
with SSG.