Kenwood NX-420 K Service Manual page 50

NX-420
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. RSSI 1) Adj item: [RRSS]
reference Adjust: [
*5 2) Adj item: [R.RSS_]
[R.R.S.S_]
[Analog [R.R.S.S._.]
Narrow] SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
[Analog 1) Adj item: [RRSS]
Wide 4k] Adjust: [ .
2) Adj item: [R.RSS_]
[R.R.S.S_]
[R.R.S.S._.]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±2.4kHz)
[Analog 1) Adj item: [RRSS]
Wide 5k] Adjust: [ .
2) Adj item: [R.RSS_]
[R.R.S.S_]
[R.R.S.S._.]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±3kHz)
[NXDN 1) Adj item: [RRSS]
Verry Adjust: [
Narrow] 2) Adj item: [R.RSS_]
[R.R.S.S_]
[R.R.S.S._.]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
*5: Because RSSI Reference (NXDN Narrow) is adjusted by adjusting RSSI Reference (Analog Narrow), it is not necessary to adjust RSSI Reference
(NXDN Narrow).
50
ADJUSTMENT
Condition
PC test mode
equipment
1) Test Channel SSG
Channel: 1 DVM
Test Signaling AF VM
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: [RSSI SSG
.] Reference (Analog
Narrow)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
1) Adj item: [RSSI
.] Reference (Analog
Wide 4k)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±2.4kHz)
1) Adj item: [RSSI
. .] Reference (Analog
Wide 5k)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±3kHz)
1) Adj item: [RSSI Ref-
] erence (NXDN Very
Narrow)]
2) Adj item: [Low],
[Center],[High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
Measurement
Test-
Unit Terminal Unit
Panel ANT Panel Volume
SP/MIC
connector
Panel ANT
SP/MIC
connector
Adjustment
Specifi cations /
Parts Method
Turn the Volume 0.63V±0.1V
knob Knob to obtain
0.63V AF output.
[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.
Adjust with the
analog signal.
Remarks