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