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Receiver Section
Item
Panel tuning mode
1. AF level
[Panel test mode]
setting
1) CH-Sig: 1-1
SSG output:
–47dBm (1mV)
(MOD: 1kHz/±1.5kHz)
Wide 5k/Wide 4k/
Narrow: Narrow
Beat Shift: Uncheck
Compander: Uncheck
2. Sensitivity 1 * This adjustment can
be performed only
in PC test mode.
3. Sensitivity 2 * This adjustment can
be performed only
in PC test mode.
4. RSSI
1) Adj item: [RRSS]
reference
Adjust: [✳✳✳.]
*5
2) Adj item: [R.RSS_]→
[R.R.SS_]→[R.R.S.S_]→
[Analog
[R.R.S.S._]→[R.R.S.S._.]
Narrow]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
ADJUSTMENT (E TYPE)
Condition
PC test mode
equipment
1) Test Channel
SSG
Channel: 1
DVM
Test Signaling
AF VTVM
Mode: Analog
Dummy
Signaling: 1
load
Wide 5k/Wide 4k/
Narrow: Narrow
Beat Shift: Uncheck
Compander: Uncheck
SSG output:
–47dBm (1mV)
(MOD: 1kHz/±1.5kHz)
1) Adj item:
SSG
[Sensitivity 1]
AF VTVM
2) Adj item: [Low],
Dummy
[Low'], [Center],
load
[High'], [High]
Oscilloscope
Press [Apply All]
button to store the
adjustment value.
3) Adj item: [Low'],
[Center], [High'],
[High]
Press [Apply All]
button to store the
adjustment value.
1) Adj item:
[Sensitivity 2]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
Press [Apply All]
button to store the
adjustment value.
3) Adj item: [Low]
Press [Apply All]
button to store the
adjustment value.
1) Adj item: [RSSI
SSG
Reference (Analog
Narrow)]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
Measurement
Test-
Unit Terminal Unit
Panel
ANT
Panel
SP/MIC
connector
Panel
ANT
SP/MIC
connector
Panel
ANT
SP/MIC
connector
NX-220
Adjustment
Specifi cations /
Parts
Method
Volume
Turn the Volume
0.63V±0.1V
knob
Knob to obtain
0.63V AF output.
[PC test
Write the value as
Note:
mode]
followings.
The Preset value of
[ ],[ ]
[Low]: 15 (Fixed)
Sensitivity 2 must
[Low']: 35 (Preset)
be written before
[Center]: 80 (Preset)
adjusting Sensitivity
[High']: 135 (Preset)
1.
[High]: 180 (Preset)
Decrease the ad-
justment value from
the preset value to
get 12dB SINAD.
SSG output:
–119dBm (0.25µV)
(MOD: 1kHz/±1.5kHz)
Write the value as
followings.
[Low]: 190 (Preset)
[Low']: 165 (Fixed)
[Center]: 165 (Fixed)
[High']: 165 (Fixed)
[High]: 165 (Fixed)
Decrease the ad-
justment value from
the preset value to
get 12dB SINAD.
SSG output:
–119dBm (0.25µV)
(MOD: 1kHz/±1.5kHz)
[Panel tuning mode]
After input signal
from SSG, press
[B] key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the adjust-
ment value.
Remarks
71
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