Kenwood NXR-800 Service Manual page 77

Uhf digital base-repeater
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Item
Condition
24. RD Level
1) Analog Wide
Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired frequency
Output: –53dBm (501µV)
MOD: 1kHz
DEV: ±3.0kHz
2) Analog Narrow
SSG setting
DEV: ±1.5kHz
25. RA Level
1) Analog Wide
Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired frequency
Output: –53dBm (501µV)
MOD: 1kHz
DEV: ±3.0kHz
2) Analog Narrow
SSG setting
DEV: ±1.5kHz
26. Receiver
1) Wide
Sensitivity
Connect the SSG to the RX
Check
ANT.
SSG setting
Frequency: Desired frequency
MOD: 1kHz
DEV: ±3.0kHz
AF: 0.45V/4Ω
2) Narrow
SSG setting
DEV: ±1.5kHz
27. Tight
1) Analog Wide
Squelch
Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired frequency
Output: 12dB SINAD level +7dB
MOD: 1kHz
DEV: ±3.0kHz
2) SSG output: OFF
3) Analog Narrow
SSG setting
DEV: ±1.5kHz
4) SSG output: OFF
28. Open
1) Analog Wide
Squelch
Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired frequency
Output: 12dB SINAD level –2dB
MOD: 1kHz
DEV: ±3.0kHz
ADJUSTMENT
Measurement
Test-
Unit
Terminal
Unit
equipment
SSG
Rear
RX ANT
AF V.M
CONTROL
I/O jack
RD (pin 10)
SSG
Rear
RX ANT
AF V.M
CONTROL
I/O jack
RA (pin 11)
SSG
Rear
RX ANT
Distortion
TEST/
meter
SPKR
jack SPO
(pin 12)
4Ω load
SSG
Rear
RX ANT
Oscilloscope
TEST/
SPKR
jack SPO
(pin 12)
4Ω load
SSG
Rear
RX ANT
Oscilloscope
TEST/
SPKR
jack SPO
(pin 12)
4Ω load
NXR-800
Adjustment
Parts
Method
PC
80mV
±5mV
ADJ
PC
400mV
±20mV
ADJ
Check
–115dBm (0.4µV) or less
PC
Adjust it to the level
ADJ
to open the squelch.
Check
The squelch shall be closed.
PC
Adjust it to the level
ADJ
to open the squelch.
Check
The squelch shall be closed.
PC
Adjust it to the level
ADJ
to open the squelch.
Specifi cations / Remarks
77

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