User's Manual

Doc. No.
Rev.
Date
1.00
2011-12-08
Damm Cellular Systems A/S, Denmark
TETRAFLEX
®
V7.5 MANUAL - Antenna System for BS41x
TetraFlex® 7.5 Manual 4-4
4.1.2.2 RX antenna
The BS uses two receiver antennas for its dual RX diversity implementation. The TMA is
provided with a dual tower-mounted amplifier with input filters, amplifiers and test circuits for
measurements. The BS includes all the required circuitry to supply the two amplifiers with DC
power and to control the test circuit through the feeders.
The two RX antennas should be mounted as widely spaced as possible to optimize the gain
of the diversity reception. In addition they should be mounted to have a coupling with the TX