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 850 NAC Band RM2
Power Amplifier (60W GMSK / 45W EDGE). The RF100739 (RM2 850) amplifier is a
medium power, RF amplifier intended to provide signal amplification. The RF100739
(RM2 850) amplifier is compatible with GSM and EDGE air interfaces operating in U.S.
domestic cell sites where FCC compliance is mandatory.
The RF100739 (RM2 850) power amplifier includes 3 lines of RF amplification (“TX
paths”). Each TX path is capable of supporting both GMSK and EDGE standards on the
NAC band (869 MHz to 894 MHz). Each TX path is rated for 45W output with EDGE
signal, and 60W with GMSK signal.
2.
RF100739 (RM2 850) Specifications
The RF100739 (RM2 850) provide linear amplification of single-carrier signals in the
NAC frequency band. The RF100739 (RM2 850) have the following specifications for
each TX path:
Parameter
Specification
Operating RF Band
869-894MHz
In band RF gain
44 dB
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
60W average
Rated Output Power
@ 28VDC +/-1% & EDGE signal
45W 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 RF100739 (RM2 850) Specifications
