Kenwood NX-203 Service Manual page 57

Item
Panel tuning mode
5. Open 1) Adj item: [An SQL]
Squelch Adjust: [✳✳✳]
adjust *6 2) Adj item:
(Squelch [AnL SQL]
level 5 [AnL ' SQL]
adjust) [AnC SQL]
[AnH' SQL]
[Analog [AnH SQL]
Narrow] Adjust: [✳✳✳]
SSG output: 12dB
SINAD level
(MOD: 1kHz/±1.5kHz)
[Analog 1) Adj item: [Aw SQL]
Wide] Adjust: [✳✳✳]
2) Adj item:
[AwL SQL]
[AwL ' SQL]
[AwC SQL]
[AwH' SQL]
[AwH SQL]
Adjust: [✳✳✳]
SSG output: 12dB
SINAD level
(MOD: 1kHz/±3kHz)
[NXDN 1) Adj item: [Nv SQL]
Very Adjust: [✳✳✳]
Narrow] 2) Adj item:
[NvL SQL]
[NvL ' SQL]
[NvC SQL]
[NvH' SQL]
[NvH SQL]
Adjust: [✳✳✳]
SSG output: 12dB
SINAD level for Ana-
log Narrow –4dB
(MOD: 400Hz/±1.1kHz)
*6: Because Open Squelch (NXDN Narrow) is adjusted by adjusting Open Squelch (Analog Narrow), it is not necessary to adjust Open Squelch
(NXDN Narrow).
6. Low RSSI 1) Adj item: [An LRSSI]
at –118dBm Adjust: [✳✳✳]
adjust *7 2) Adj item:
[AnL LRSSI]
[Analog [AnL ' LRSSI]
Narrow] [AnC LRSSI]
[AnH' LRSSI]
[AnH LRSSI]
Adjust: [✳✳✳]
SSG output:
–118dBm (0.28µV)
(MOD: 1kHz/±1.5kHz)
ADJUSTMENT
Condition
PC test mode
equipment
1) Adj item: SSG
[Open Squelch Distortion
(Analog Narrow)] meter
2) Adj item: [Low], Oscilloscope
[Low'], [Center],
[High'], [High]
SSG output: 12dB
SINAD level
(MOD: 1kHz/±1.5kHz)
1) Adj item:
[Open Squelch
(Analog Wide)]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
SSG output: 12dB
SINAD level
(MOD: 1kHz/±3kHz)
1) Adj item: [Open
Squelch (NXDN
Very Narrow)]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
SSG output: 12dB
SINAD level for Ana-
log Narrow –4dB
(MOD: 400Hz/±1.1kHz)
1) Adj item: [Low RSSI SSG
(Analog Narrow)]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
SSG output:
–118dBm (0.28µV)
(MOD: 1kHz/±1.5kHz)
Measurement
Test-
Unit Terminal Unit
Panel ANT
Universal
connector
Panel ANT
Universal
connector
NX-203
Adjustment
Specifi cations /
Parts Method
[Panel tuning mode] "Open Squelch"
After input signal will not be adjusted
from SSG, press correctly if MOD
[ ] key to store the and Deviation are
adjustment value. wrong.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the adjust-
ment value.
Adjust with the ana-
log signal.
This item is ad-
justed under the
condition that MOD
is "400Hz" and De-
viation is "±1.1kHz"
due to the circuit
confi guration.
[Panel tuning mode]
After input signal
from SSG, press
[ ] key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the adjust-
ment value.
Remarks
57