Kenwood NXR-700H Service Manual page 128

Vhf digital base-repeater
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NXR-700H
Item
Condition
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)
2) Point: High Level
SSG output
: 12dB SINAD level +7dB
3) Point: Low Level
SSG output
: 12dB SINAD level –2dB
40. Repeater
1) Wide/Narrow: Analog Wide
Gain
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
3) Wide/Narrow: Analog Narrow
7.5kHz
3dB
max.
30kHz
Fig. 2
128
ADJUSTMENT
Measurement
Test-
Unit
equipment
SSG
Rear
AF VTVM
SSG
Rear
Deviation
meter
1.5MHz
3dB max.
Fig. 1
7.5kHz
More
than
55dB
Center frequency
30kHz
: 49.95MHz
Pass bandwidth
: ±7.5MHz at 3dB
Adjustment
Terminal
Unit
Parts
RX ANT
PC
3.5V
TEST/
ADJ
SPKR
jack
RSSI
(pin 8)
PC
Apply the value
ADJ
(Vin4)
(Vin4)
RX ANT
PC
±1.00kHz
TX ANT
ADJ
±1.00kHz
1.5MHz
BPF center frequency (Production default)
: 160.1MHz
Pass bandwidth
: ±1.5MHz at 3dB
3.75kHz
3dB max.
12.5kHz
Fig. 3
Specifi cations / Remarks
Method
±0.1V
±0.10kHz
±0.10kHz
3.75kHz
More
than
35dB
12.5kHz
Center frequency
: 49.95MHz
Pass bandwidth
: ±3.75MHz at 3dB

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