ZXG10 iBSC Hardware Installation Guide
con gain of GPS trunk amplifier (optional) + feeder gain + gain of dual-frequency
coaxial cable pro gain of cables in rack - air attenuation.
Air attenuation: 65 dB (10 m)
The receiver gain should be more than the best gain required by the receiver.
shows the gain description of indoor forwarding scheme.
Table 7-2 Gain Description of Indoor Forwarding Scheme
Name
Gain (dB)
GPS L1 Signal Transponder
87.2
GPS Antenna Feeder Lightning Protector
-0.2
TNC/N-type coaxial connector
-0.2
Broad outband suppression, anti-interference,
and enhanced lighning protection GPS antenna
38
N-type male connector (1/2" or 1/4" feeder); or
7/16 cable plug (hole) connected to 7/8" feeder
-0.2
GPS trunk amplifier (optional)
22
1/4" feeder (100 m)
-26
1/2" feeder (100 m)
-10
1/2" super-flexible feeder (100 m)
-10
7/8" feeder (100 m)
-610
Dual-frequency coaxial cable protector
-4
SMA male jumper
-2.5
ICM board (ublox-5t receiver)
25.5
ICM board (Trimble receiver)
23.5
7.2 Installation Flow
shows the installation flow of direct feeder scheme.
7-4
SJ-20110531095035-004|2011-10-28 (R2.0)
ZTE Proprietary and Confidential
Содержание ZXG10 iBSC
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