User's Manual

SZZJ-A10~17LF-LCPA User
Manual
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4. Block diagram and work principle
SZZJ-A10-17LF-LCPA, SZZJ-A10-13LF-LCPA, SZZJ-A10-10LF-LCPA repeater is basically a bi-directional
amplifier, the downlink signals are received by the repeater from cell tower by the donor antenna, filtered by its
internal duplexers and FC unit, amplified by low noise amplifier (LNA) and downlink PA unit, and then sent via
the server antenna to the area to improve mobile signals for mobile phones.
The uplink signal of mobile devices from the coverage area is input via the server antenna, then filtered by
duplexers and FC unit, amplified by the uplink low noise amplifier (LNA) and the uplink PA unit and finally sent
via the donor antenna to the cell tower.