User's Guide

VCom Inc.
BTR5857 Manual; ML_BTR5857_02 (Mar 2004)
Approved: G.C.
7
1.0 GENERAL INFORMATION
1.1 Functional Overview
The VCom BTR5857 is a low cost 5.7 to 5.8 GHz Base Station Outdoor Unit (ODU) for use with VCom TRI5758 in
broadband fixed wireless systems. The BTR5857 cost and performance makes it ideal for both point-to-point and
point-to-multipoint systems. The BTR5857 combines a low noise downconverter, high power upconverter and high
rejection duplexer to offer a quick and easy to install base station ODU for BWIN
TM
BASED ON DOCSIS
TM
.
1.2 Module Features
• Up to +15 dBm output power with 64QAM; +20 dBm with QPSK
• Digital temperature compensation - guarantees specifications over full operating temperature band
• High reliability, state-of-the-art design using microstrip, MMIC and surface mount technology
• Meets unlicensed-band maximum allowable transmit power of +31 dBm EIRP
• High Receive Gain of 38 dB allows for optimal Downstream signal recovery for high SNR
• Automatic transmit RF mute (transmits only when an IF signal is present)
• Low Noise Figure; < 6 dB typical
• All local oscillators are frequency synthesized and locked to a common internal high stability reference
• Conservative component derating and 100% burn in help ensure reliable operation
• Fully weatherized unit, suited for outdoor mounting