Kenwood NEXEDGE NX-900, Service Manual, Page: 61 / 115

NX-900
61
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)
1) Test Channel
Channel: 1
Test
Signaling
Mode: Analog
Signaling: 1
SSG
output:
–47dBm (1mV)
(MOD: 1kHz/±1.5kHz)
SSG
DVM
AF VTVM
Dummy
load (4
Ω )
ANT
Ext.SP
connector [Panel
tuning
mode]
[ ],[ ]
[PC test
mode]
[ ],[ ]
Volume Up/Down
knob to obtain
2.83V AF output.
(2.0W @ 4
Ω load)
2.83V±0.3V
2. RSSI
Reference
*5
[Analog
Narrow]
1) Adj item: [An RRSSI]
Adjust:
[
✳✳✳
]
2) Adj item:
[AnL
RRSSI] →
[AnC RRSSI] →
[AnH RRSSI]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
1) Adj item: [RSSI
Reference (Narrow)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
SSG
AF VTVM
Oscilloscope [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.
[Analog
Wide 4k] 1) Adj item: [As RRSSI]
Adjust:
[
✳✳✳
]
2) Adj item:
[AsL
RRSSI]
→
[AsC RRSSI]
→
[AsH RRSSI]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±2.4kHz)
1) Adj item: [RSSI Ref-
erence (Wide 4k)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±2.4kHz)
[Analog
Wide 5k] 1) Adj item: [Aw RRSSI]
Adjust:
[ ✳✳✳ ]
2) Adj item:
[AwL
RRSSI]
→
[AwC RRSSI]
→
[AwH RRSSI]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±3kHz)
1) Adj item: [RSSI Ref-
erence (Wide 5k)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±3kHz)
[NXDN
Very
Narrow] 1) Adj item: [Nv RRSSI]
Adjust:
[
✳✳✳
]
2) Adj item:
[NvL
RRSSI] →
[NvC RRSSI] →
[NvH RRSSI]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
1) Adj item: [RSSI Ref-
erence (Very Narrow)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
Adjust with the ana-
log signal.
*5: Because “RSSI reference adjust” of NXDN Narrow is adjusted by adjusting “RSSI reference adjust [Analog Narrow]”, it is not necessary to
adjust “RSSI reference adjust” of NXDN Narrow.