Kenwood NX-800 Service Manual page 53

Item
Panel tuning mode
2. Low Transmit 1) Adj item:[LOLMT]
Power Limit Adjust:[****]
adjust 2) Adj item:
[L LOLMT]→
[L' LOLMT]→
[C LOLMT]→
[H' LOLMT]→
[H LOLMT]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
3. High Transmit 1) Adj item:[HIPWR]
Power Adjust:[****]
adjust 2) Adj item:[L HIPWR]→
[L' HIPWR]→
[C HIPWR]→
[H' HIPWR]→
[H HIPWR]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
4. Low Transmit 1) Adj item:[LOPWR]
Power Adjust:[****]
adjust 2) Adj item:[L LOPWR]→
[L' LOPWR]→
[C LOPWR]→
[H' LOPWR]→
[H LOPWR]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
5. Balance 1) Adj item:[BAL]
adjust *2 Adjust:[***]
Deviation meter
LPF : 3kHz
HPF : OFF
2) Adj item:[L BAL]→
[L' BAL]→[C BAL]→
[H' BAL]→[H BAL]
Adjust:[***]
PTT : ON
Press [ ] key to store
the adjustment value.
Sub LCD: Tone frequency
[ ] key: Press while
transmitting to change
20Hz and 2kHz
*2: Refer to the "Mode, Signaling, Necessary adjustment and order" table on page 57.
Balance adjustment is common with the adjustment of all signaling deviation.
ADJUSTMENT
Condition
PC test mode
equipment
1) Adj item: Power
[Low Transmit meter
Power Limit] Ammeter
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
1) Adj item: [High
Transmit Power]
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
1) Adj item:
[Low Transmit Power]
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
1) Adj item:[Balance] Deviation
Deviation meter meter
LPF : 3kHz
Oscilloscope
HPF : OFF
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
[2kHz Sine Wave
Check box]: Check
while transmitting
change to 2kHz.
Measurement
Test-
Unit Terminal Unit
ANT
NX-800
Adjustment
Specifications/
Parts Method
± 1.0W
[Panel 15.0W
tuning
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 transceiver's
transmit output power
beyond its specifications.
If the transceiver is
adjusted beyond the
specifications, it may
cause deterioration of
the parts reliability and
the output power may
be lowered suddenly
and unstable.
The transceiver may be
also extremely hot.
± 1.0W
[L HIPWR]: 30.0W
[L' HIPWR]: 30.0W 9.0A or less
[C HIPWR]: 30.0W
[H' HIPWR]: 25.0W [PC test mode]
[H HIPWR]: 25.0W Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
± 0.5W
5.0W
5.0A or less
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
The Deviation of 2kHz Tone
20Hz frequency is deviation is within
± 1.0% of 20Hz
fixed. Change the
2kHz adjustment tone deviation.
value to become
the same deviation [PC test mode]
of 20Hz within the Press [Apply All]
specified range. button to store the
adjustment value
after all
adjustment point
was adjusted.
Remarks
53