Kenwood NXR-901 Service Manual page 87

900mhz digital base-repeater ocxo unit kxk-3 m3
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Item
Condition
7. Tight
1) Channel spacing
Squelch
: Analog Narrow
Connect the SSG to the RX ANT.
SSG setting
Frequency: Low, Low',
Center, High', High
Output: 12dB SINAD level +7dB
MOD: 1kHz
DEV: ±1.5kHz
2) SSG output: OFF
8. Open
1) Channel spacing
Squelch
: Analog Narrow
Connect the SSG to the RX ANT.
SSG setting
Frequency: Low, Low',
Center, High', High
Output: 12dB SINAD level –1dB
MOD: 1kHz
DEV: ±1.5kHz
2) SSG output: OFF
9. RSSI
1) Channel spacing
(Analog)
: Analog Narrow
Connect the SSG to the RX ANT.
SSG setting
Frequency: Low, Low',
Center, High', High
Output: –53dBm (501µV)
MOD: OFF
2) Point: High level
SSG output
: 12dB SINAD level +7dB
3) Point: Low level
SSG output
: 12dB SINAD level –2dB
10. RSSI
1) Connect theSSG to the RX ANT.
(NXDN Very
SSG setting
Narrow)
Frequency: Low, Low',
Center, High', High
Output: –121dBm (0.2µV)
MOD: OFF
ADJUSTMENT
Measurement
Test-
Unit
Terminal
Unit
equipment
SSG
Rear
RX
Oscilloscope
ANT
Audio
TEST/
analyzer
SPKR
jack
SPO
(pin 12)
4 load
SSG
Rear
RX
Oscilloscope
ANT
Audio
TEST/
analyzer
SPKR
jack
SPO
(pin 12)
4 load
SSG
Rear
RX
AF VM
ANT
TEST/
SPKR
jack
RSSI
(pin 8)
SSG
Rear
RX
ANT
NXR-901
Adjustment
Parts
Method
PC
Press [Apply] button to store
ADJ
the adjustment value.
Check
The squelch shall be closed.
PC
Press [Apply] button to store
ADJ
the adjustment value.
Check
The squelch shall be closed.
PC
3.5V
±0.1V
ADJ
Press [Apply] button to store
the adjustment value.
PC
Press [Apply] button to store
ADJ
the adjustment value.
Specifi cations / Remarks
87

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