User's Manual

RF Power Amplifiers
Andrew Corporation – Power Amplifier Group
Propriety – Use pursuant to Company Instruction
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1. Introduction
This document presents description of the Andrew Corporation 1900 PCS Band RM2
Power Amplifier (50W GMSK / 30W EDGE). The RF100721 (RM2 1900) amplifier is a
medium power, RF amplifier intended to provide signal amplification. The RF100721
(RM2 1900) amplifier is compatible with GSM and EDGE air interfaces operating in
U.S. domestic cell sites where FCC compliance is mandatory.
The RF100721 (RM2 1900) power amplifier includes 3 lines of RF amplification (“TX
paths”). Each TX path is capable of supporting both GMSK and EDGE standards on the
PCS band (1930 MHz to 1990 MHz). Each TX path is rated for 30W output with EDGE
signal, and 50W with GMSK signal.
2. RF100721 (RM2 1900) Specifications
The RF100721 (RM2 1900) provide linear amplification of single-carrier signals in the
PCS frequency band. The RF100721 (RM2 1900) have the following specifications for
each TX path:
Parameter Specification
Operating RF Band 1930-1990MHz
In band RF gain 48dB
Input signal types GSM or EDGE single carrier
Input DC Power 28 VDC +/-1%, nominal
DC voltage input range 26VDC to 30.5VDC
Rated Output Power
@ 28VDC +/-1% & GMSK signal
50W average
Rated Output Power
@ 28VDC +/-1% & EDGE signal
30W average
DC-Power Consumption @ GMSK
signal & rated output power
170W (29% Power efficiency)
DC-Power Consumption @ EDGE
signal & rated output power
150W (20% Power efficiency)
Physical dimensions 11.5” x 16.15” x 2.4”
Weight < 12.13lbs
Cooling technique
External cooling when the Amplifier is placed in the
customer frame.
Temperature Range
-5°C to +60°C (heat sink inlet air), meeting
specifications.
Table 1 RF100721 (RM2 1900) Specifications