User's Manual

RF Power Amplifiers

Andrew Corporation – Power Amplifier Group

Propriety – Use pursuant to Company Instruction

1 of 5

High Efficiency Power Amplifier

Model: HePA1900 V3

Operation Instruction

Date: May 14, 2008

Version. 1.1

Ref# : FCC I

D:S8L-100576HePA & IC:2237-100576HePA

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RF Power Amplifiers High Efficiency Power Amplifier Model: HePA1900 V3 Operation Instruction Date: May 14, 2008 Version. 1.
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RF Power Amplifiers Introduction This document presents description of the Andrew Corporation 1900 Band HePA (High Efficiency Power Amplifier) amplifiers. The HePA1900V3 amplifier is a high power, RF amplifier intended to provide signal amplification and conditioning. The HePA1900V3 amplifier is compatible with GSM and EDGE air interfaces operating in U.S. domestic cell sites where FCC compliance is mandatory.
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RF Power Amplifiers Inputs and Outputs: The amplifier is powered from a DC supply voltage, which can range from -38VDC to 58.5VDC. The DC power is brought into the amplifier through a D-Sub connector located on the face plate of the amplifier. A second multipoint connector located on the amplifier face plate is used for serial communication, monitoring and control. This connector is used both during factory tests and at the system level by the customer .
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RF Power Amplifiers Captive Screw Mounting Heatsink fins Figure 1 HePA1900 side view The alarms are mapped to front panel LED behavior, as indicated: - LED red =major alarm/reset/disable : the PA is not operational - LED green = the PA is operational = synch present, no alarm, PA ready to amplify The amplifier monitoring and control is also managed through a serial link and a customer specific protocol.