RF Power Amplifiers
Andrew Corporation – Power Amplifier Group
Propriety – Use pursuant to Company Instruction
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5.
Inputs and Outputs:
The amplifier is powered from a DC supply voltage, which can range from 26VDC to
30.5VDC. The DC power is brought into the amplifier through a header right angle, 2
pins connector, located on the amplifier motherboard.
A 44 pins connector, also located on the amplifier motherboard, is used for analogical
lines enabling monitoring and control. This connector is used both during factory tests
and at the system level by the customer .
The 3 RF input signals are brought into the amplifier through 3 female SMA type
connectors located on the amplifier motherboard. The 3 amplified RF signal are brought
out of the amplifier through 3 N type connectors. They are located on the face plate of the
amplifier.
RF100739 (RM2 850) Face plate view
6.
Control System:
The RF100739 (RM2 850) power amplifier is controlled by the customer logic board,
which builds control signals and accepts monitoring signals. This additional board is also
responsible for the whole transmitter external digital / analogical interfaces. A controller
is used at system level to control the amplifier alarm system (by monitoring temperature
and currents for each TX paths) and to compensate the environmental drift (ambient
temperature).
7.
Installation and Operation Set-Up
The RF100739 (RM2 850) is easy to operate and use, only requiring a special cables for
DC power and interface connection into the customer frame. RF input and output
connections are done with industry standard SMA and N connectors.
3 RF output connectors
