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NXR-800H
130
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
39. RSSI
Wide/Narrow: Analog Narrow
Connect the SSG to the RX ANT.
SSG setting
Frequency: Desired frequency
MOD: 1kHz
DEV: ±1.5kHz
1) SSG output: –53dBm (501µV)
SSG
AF VTVM
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
PC
ADJ
(Vin4)
Apply the value
(Vin4)
3) Point: Low Level
SSG output
: 12dB SINAD level –2dB
40. Repeater
Gain
1) Wide/Narrow: Analog Wide
Connect the SSG to the RX ANT.
SSG setting
Frequency: Desired frequency
Output: –53dBm (501µV)
MOD: 1.0kHz
DEV: ±1.0kHz
Connect the deviation meter
to the TX ANT end via the ATT.
Deviation meter setting
HPF: OFF
LPF: 15kHz
De-emp: OFF
Detector: +peak, –peak
SSG
Deviation
meter
Rear
RX ANT
TX ANT
PC
ADJ
±1.00kHz
±0.10kHz
3) Wide/Narrow: Analog Narrow
±1.00kHz
±0.10kHz
3dB max.
2.5MHz
2.5MHz
3dB max.
3.75kHz
3.75kHz
More
than
35dB
12.5kHz
12.5kHz
3dB
max.
7.5kHz
More
than
55dB
30kHz
30kHz
7.5kHz
Fig. 1
Fig. 2
Fig. 3
BPF center frequency (Production default)
: 455.6MHz (C), 415.05MHz (C2)
Pass bandwidth
: ±2.5MHz at 3dB
Center frequency
: 49.95MHz
Pass bandwidth
: ±7.5MHz at 3dB
Center frequency
: 49.95MHz
Pass bandwidth
: ±3.75MHz at 3dB
Содержание NXR-800H
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