Kenwood NXR-800 Service Manual page 42

NXR-800
Item Condition
33. Discriminator 1) Narrow
Frequency: Desired frequency
SSG output: –53dBm (501µV)
SSG MOD: 1kHz
SSG DEV: 1.5kHz
AF output: 2V/4Ω
34. RD Level 1) Wide/Narrow: Analog Wide
Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired frequency
Output: –53dBm (501µV)
MOD: 1kHz
DEV: ±3.0kHz
2) Wide/Narrow: Analog Narrow
SSG setting
DEV: ±1.5kHz
35. RA Level 1) Wide/Narrow: Analog Wide
Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired frequency
Output: –53dBm (501µV)
MOD: 1kHz
DEV: ±3.0kHz
2) Wide/Narrow: Analog Narrow
SSG setting
DEV: ±1.5kHz
36. Receiver 1) Wide/Narrow: Analog 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) Wide/Narrow: Analog Narrow
SSG setting
DEV: ±1.5kHz
37. Tight 1) Wide/Narrow: 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) Wide/Narrow: Analog Narrow
SSG setting
DEV: ±1.5kHz
4) SSG output: OFF
42
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
SSG Rear RX ANT RX
AF V.M TEST/
SPKR
jack SPO
(pin 12)
4Ω load
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/
Audio SPKR
analyzer jack SPO
(pin 12)
4Ω load
Adjustment
Parts Method
L128 Adjust AF output
max.
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.
Specifi cations / Remarks