User Manual

Figure 1
1. 2. 3.
6.
7.
4. 5.
BDA Block Diagram
1. Uplink Diplexer - has low bandpass insertion loss and high selectivity
2. Downlink Pre-amp - is a low noise amplifier that drives the Downlink PA and
offers 46dB Gain
3. Downlink PA – is a power amplifier with an ALC circuit which offers 43dB Gain
4. Uplink MPA – is a medium power amplifier with an ALC circuit which offers 43dB
Gain
5. Uplink Pre-amp - is a low noise amplifier that drives the Uplink MPA and offers
46dB Gain
6. Filters used on High-Gain Repeaters (90dB) to provide better isolation between
Tx & Rx frequencies and to aid the diplexer rejection.
7. Downlink Tx filter is enhanced for High Power applications, preventing arching
when the power amplifier approaches the 1dB compression point.
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