SMARTAMP TM BI-DIRECTIONAL POWER AMPLIFIER 2.4 GHz, 1W version User and Installation Manual TELETRONICS INTERNATIONAL, INC. 1803 Research Blvd., Suite 404, Rockville, Maryland, USA, 20850-3155 Web Site: www.teletronics.com Email: sales@teletronics.com Tel: (301)-309-8500 Fax: (301)-309-8851 SmartAmp TM is a trademark of Teletronics International Inc.
Copyright ©2002 by Teletronics International, Inc. Patent Pending All Rights Reserved. No part or parts of this document may be reproduced, translated, stored in any electronic retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright holder.
Table of contents User and Installation Manual _______________________________________________________i 1. General Product Description ____________________________________________3 2. Background _________________________________________________________3 3. Major Parameters ____________________________________________________4 4. Salient Characteristics:________________________________________________5 5. Installation: ______________________________________________________6 6.
1. General Product Description SMART Amplifier (SMARTAMP) is a new bi-directional antennamount amplifier designed to match any advanced spread spectrum system, either direct sequence or frequency hopping, to allow the extension of the operating range in wireless environment. It is provided in a wide range of frequencies, such as 900 MHz, 2400 MHz, or 5800 MHz where advanced spread spectrum systems are operated.
Differences Between SmartAmp and Other TDD Amplifier Transmit gain Transmit power level Transmit signal distortion Input power range requirements SMARTAMP Intelligent self adjusted Maintained Minimized at all time Wide range accepted Other TDD Amplifier Fixed Varies, depending on input power level Much worse at high input power levels Designed for narrow range only 3.
4. Salient Characteristics: • • • • • • • • • • • Complete One Year Warranty on parts and labor. Automatic gain control to minimize the signal distortion Wide Transmit input levels (2mW to 200mW) Low noise amplifier with system noise figure 3.5dB Universal 110/220VAC auto switching AC adapter for DC power injector Green LED on DC Injector for power. Bi-color LED on SmartAmp for transmit and receive. SmartAmp equipped with Lightening Protection if grounded properly.
5. Installation: The SmartAmp is a stand-alone unit designed for installation by professional radio installers. Typical Installation: As shown in the above diagram power is carried to the amplifier from DC Injector via RF cable. The DC injector is an indoor unit and requires weather protection. The amplifier is installed at the antenna pole (or mast) with the U-bolt assembly. It is a weatherproof unit and designed to withstand the outdoor environment.
“To Amplifier” Connection: This “N” Female connector connects to the amplifier on the mast via the transmission cable. LED: Green LED indicates DC power on. DC Power Supply: The power supply provided with the unit is universal type, 110/220 V AC to 12 VDC converter. This has been tested for quality and performance. If a different 12V DC adapter has to be used make sure it is provided with center positive 2.5mm jack and minimum of 1.2 Amp rated capacity. 7.
This manual describes how SmartAmp as a product exploits the automatic gain control by detecting the input power level, automatically adjusting its gain and maintaining the output power to a specified level while minimizing the signal distortion and maximizing and transmission distance.
Functional Block Diagram Tx Power Reader Tx Power Sensor Antenna Tx Tx Amplifier Variable Attenuator Rx Rx Amplifier Bandpass Filter Tx In Rx DC Power Supply Nominal Loss Characteristics For Different Cables (decibels per hundred feet at 2.5 GHz) LMR-400 6.8 dB LMR-500 5.5 dB LMR-600 4.4 dB LMR-900 3.0 dB LMR-1200 2.
10. LIMITED WARRANTY The SmartAmp is warranted to the original purchaser to be free from defects in materials and workmanship under normal installation, use, and service for a period of one (1) year from the date of purchase. Under this warranty, Teletronics International, Inc.
