NX-200
53
ADJUSTMENT
Receiver Section
Item
Condition
Measurement
Adjustment
Specifi cations /
Remarks
Panel tuning mode
PC test mode
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. AF level
setting
[Panel test mode]
1) CH-Sig: 1-1
SSG
output:
–47dBm
(1mV)
(MOD: 1kHz/±1.5kHz)
Wide/Narrow: Narrow
Beat Shift: Uncheck
Compander: Uncheck
1) Test Channel
Channel: 1
Test
Signaling
Mode: Analog
Signaling: 1
Wide/Narrow: Narrow
Beat Shift: Uncheck
Compander: Uncheck
SSG
output:
–47dBm
(1mV)
(MOD: 1kHz/±1.5kHz)
SSG
DVM
AF VTVM
Dummy
load
Panel
ANT
Universal
connector
Panel
Volume
knob
Turn the Volume
knob to obtain
0.63V AF output.
0.63V±0.1V
2. Sensitivity 1
adjust
1) Adj item: [SENS1]
Adjust:
[
✳✳✳
]
2) Adj item:
[L
SENS1]
→
[L’
SENS1]
→
[C
SENS1]
→
[H’
SENS1]
→
[H
SENS1]
Adjust:
[
✳✳✳
]
Press [ ] key to store
the adjustment value.
1) Adj item:
[Sensitivity 1]
2) Adj item: [Low],
[Low’],
[Center],
[High’],
[High]
Press [Apply All]
button to store the
adjustment value.
[Panel
tuning
mode]
[
],
[
]
[PC test
mode]
[ ],[ ]
Write the value as
followings.
[L SENS1] / [Low]
: 10 (Preset)
[L’ SENS1] / [Low’]
: 50 (Preset)
[C SENS1] / [Center]
: 95 (Fixed)
[H’ SENS1] / [High’]
: 135 (Fixed)
[H SENS1] / [High]
: 180 (Fixed)
3) Adj item:
[L
SENS1]
→
[L’
SENS1]
→
Adjust:
[
✳✳✳
]
3) Adj item: [Low],
[Low’]
SSG
AF VTVM
Oscilloscope
Panel
ANT
Universal
connector
Increase the adjust-
ment value from
step 2 adjustment
value (preset value)
of “2. Sensitivity 1
adjust”.
Caution:
Perform the step 3 adjustments of “3. Sensi-
tivity 2 adjust” before performing the
[L SENS1] and [L’ SENS1] adjustment.
SSG
output:
–90dBm
(7.08µV)
(MOD: 1kHz/±1.5kHz)
Press
[ ] key to
store the adjust-
ment value.
SSG
output:
–90dBm
(7.08µV)
(MOD: 1kHz/±1.5kHz)
Press [Apply All]
button to store the
adjustment value.
Mode
Signaling
Necessary adjustment and order
Wide
Narrow
Very Narrow
NXDN
Audio
-
Step1. Balance adjust
Step2. Maximum Deviation (NXDN Narrow)
Step1. Balance adjust
Step2. Maximum Deviation (NXDN Very Narrow)
CWID
-
-
Step1. Balance adjust
Step2. Maximum Deviation (Analog Narrow)
Step3. CWID Deviation (NXDN Very Narrow)
• Balance is common with all the above deviation adjustments. If Balance (Transmitter Section 3) has already adjusted, please skip Step1 and adjust from
Step2.
• Maximum Deviation (Analog Wide/Narrow) is common with all the analog signaling deviations and CWID Deviation (NXDN Very Narrow). If Balance and
Maximum Deviation (Analog Wide/Narrow) (Transmitter Section 5) have already adjusted, please skip Step2 and adjust from Step3.