NX-720H(G)/720H
44
ADJUSTMENT
Item
Panel test mode
PC test mode
Measurement
Adjustment
Specifi cations/
Remarks
Test-
equipment
Unit
Termi-
nal
Unit
Parts
Method
5. Sensitivity
check
1) CH-Sig: 1-1
SSG output
Wide 5k:
–117dBm (0.32µV)
(MOD: 1kHz/±3kHz)
Narrow:
–117dBm (0.32µV)
(MOD:1kHz/±1.5kHz)
1) Test Channel
Channel: 1
Test Signaling
Mode: Analog
Signaling: 1
SSG output
Wide 5k:
–116dBm (0.35µV)
(MOD: 1kHz/±3kHz)
Narrow:
–115dBm (0.40µV)
(MOD:1kHz/±1.5kHz)
SSG
AF VTVM
Oscilloscope
Distortion
meter
4ohm
Dummy
load
ANT
Ext.SP
connec-
tor
Check
12dB SINAD or
more
Common Section
Item
Panel test
mode
PC test mode
Measurement
Adjustment
Specifi cations/
Remarks
Test-
equipment
Unit
Ter-
minal
Unit
Parts
Method
1. Setting
1) DC voltage:13.6V
2) SSG standard modulation
[Wide] MOD:1kHz,DEV:3kHz
[Narrow] MOD:1kHz,DEV:1.5kHz
2. Receive
Assist
This adjust-
ment can be
performed only
PC test mode.
1) Adj item:
[Receive Assist]
2) Adj item:
[Low1],[Low2],
[Low3],[Center1],
[Center2], [Center3
],[High1],[High2],[Hi
gh3]
Press [Apply All]
button to store the
adjustment value.
[PC test
mode]
[
], [
]
[PC test mode]
[Automatic Adjustment
]
Press [ Tune Assist
Voltage ] button.
Press [ Apply All ] but-
ton to store the adjust-
ment value after the
automatic adjustment
has fi nished.
[ Manual Adjustment ]
[ V ] indicator on the
PC window shows
VCO lock voltage.
Change the adjustment
value to get VCO lock
voltage within the limit
of the specifi ed voltage.
Note:
Confi rm the VCO lock
voltage approximately
3 seconds after the
adjustment value is
changed.
2.5V±0.1V
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all adjustment
point was adjusted.
Check!
The assist adjust-
ment value must be
between from 50 to
3800.
3.Transmit
Assist
This adjustment
can be per-
formed only PC
test mode.
1) Adj item:
[Transmit Assist]
2) Adj item:
[Low1],[Low2],
[Low3],[Center1],
[Center2], [Center3
],[High1],[High2],[Hi
gh3]
PTT: Press [Trans-
mit] button.
Press [Apply All]
button to store the
adjustment value.
Содержание Nexedge NX-720H
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