Kaval BDA1300 Technical Document

Document Number: DCM000000018, Rev.0
Issue March 21, 2000
© Copyright 2000 Kaval Telecom Inc. All Rights Reserved
1.1A-1200-0BB4-01
BDA1300
BI-DIRECTIONAL AMPLIFIER
UHF 403-512 MHz
EQUIPMENT MANUAL

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Kaval Telecom Inc. iii
Proprietary Statement
©2000 Kaval Telecom Inc. All rights reserved. No part of this publication, or any
software included with it may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, including photocopying, electronic,
mechanical, recording or otherwise, without the prior written permission of the
copyright holder.
This document contains proprietary information of Kaval Telecom Inc. The contents
are confidential and any disclosure to persons other than the officers, employees,
agents or subcontractors of the owner or licensee of this document, without the prior
written consent of Kaval Telecom Inc., is strictly prohibited.
Kaval Telecom Inc. provides this document as is, without any warranty of any
kind either expressed or implied including, but not limited to, the implied
warranties of merchantability and fitness of a particular purpose. Kaval Telecom
may make changes or improvements in the equipment, software, or
specifications described in this document at any time and without notice. These
changes will be incorporated in new releases of this document.
This document may contain technical inaccuracies or typographical errors. Kaval
Telecom Inc. waives responsibility for any labour, materials, or costs incurred by
any person or party as a result of using this document. Kaval Telecom Inc., and
any of its affiliates shall not be liable for any damages (including, but not limited
to, consequential, indirect or incidental, special damages or loss of profits or
date) even if they were foreseeable and Kaval Telecom has been informed of
their potential occurrence, arising out of or in connection with this document or its
use.
Kaval Telecom Inc.
60 Gough Road,
Markham. Ontario.
L3R 8X7
Tel : [phone]
Fax : [phone]
http://www.kaval.com/

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TABLE OF CONTENTS
1FCC NOTICE............................................................................................................................ V
2INTRODUCTION TO BDA’S................................................................................................. 2-4
2.1 BDA LINE AMPLIFIER SYSTEM APPLICATION...................................................................................... 2-4
2.2 BDA LINE AMPLIFIER DIAGRAM ........................................................................................................ 2-4
2.3 BDA “OFF-THE-AIR” AMPLIFIER SYSTEM APPLICATION ...................................................................... 2-5
2.4 BDA “OFF-THE-AIR” DRAWING ........................................................................................................ 2-5
3BDA1300 BI-DIRECTIONAL AMPLIFIER DESCRIPTION.................................................. 3-6
3.1 BDA1300 FUNCTIONAL DESCRIPTION .............................................................................................. 3-6
3.2 BDA1300 BLOCK DIAGRAM WITH CONTROLLER ................................................................................ 3-7
3.3 BDA1300 COMPONENTS IN ENCLOSURE WITH CONTROLLER ................................................................. 9
3.4 BDA1300 BLOCK DIAGRAM WITHOUT CONTROLLER ........................................................................ 3-10
3.5 BDA1300 COMPONENTS IN ENCLOSURE WITHOUT CONTROLLER ...................................................... 3-11
4BDA1300 MODELS AND SPECIFICATIONS .................................................................... 4-12
4.1 BDA1300 SPECIFICATIONS ........................................................................................................... 4-12
4.2 BDA1300 SERIES MODEL CHART.................................................................................................. 4-13
4.3 POWER DE-RATING REQUIREMENTS............................................................................................... 4-14
4.4 AUTOMATIC GAIN CONTROL (AGC) ................................................................................................ 4-14
4.5 AGC THRESHOLD LEVEL SETTING.................................................................................................. 4-14
4.6 BDA PER CHANNEL POWER DE-RATING & AGC THRESHOLD SETTING............................................. 4-15
5BDA ENCLOSURE INSTALLATION ................................................................................. 5-16
5.1 PREPARATION FOR THE INSTALLATION OF BDA ENCLOSURES ............................................................ 5-16
5.2 MOUNTING THE BDA ENCLOSURE .................................................................................................. 5-16
5.3 CONNECTING THE COAXIAL CABLES ................................................................................................ 5-16
5.4 BDA ENCLOSURE OUTLINE ........................................................................................................... 5-21
5.5 RF AND POWER CONNECTIONS......................................................................................................... 22
5.6 CONNECTING THE POWER CABLES .................................................................................................... 23
5.7 SECURING THE DOOR....................................................................................................................... 23
6ANTENNA INSTALLATION .................................................................................................. 24
7BDA CONTROLLER AND CONFIGURATION ..................................................................... 25
7.1 BDA1300 CONTROLLER OPERATION ................................................................................................ 25
7.2 BDA CONTROLLER DRAWING ........................................................................................................... 25
7.3 BDA CONTROLLER USER INTERFACE ............................................................................................... 26
7.4 CHECKING BDA STATUS .................................................................................................................. 27
7.5 SETTING BDA OPERATING PARAMETERS ........................................................................................... 27
7.6 BDA CONTROLLER FIELD SETTINGS PARAMETERS ............................................................................. 28
7.7 BDA CONTROLLER CONFIGURATION GUIDE ....................................................................................... 29
7.8 EXAMPLE - SETTING THE DOWNLINK GAIN .......................................................................................... 48
8TROUBLESHOOTING AND MAINTENANCE ...................................................................... 49
8.1 MAINTENANCE & SAFETY.................................................................................................................. 49
8.2 MAINTENANCE PHILOSOPHY.............................................................................................................. 49
8.3 TROUBLESHOOTING PROCEDURE ...................................................................................................... 49
9STANDARD WARRANTY ..................................................................................................... 52
10 PRODUCT SERVICE PROCEDURE ................................................................................. 53
11 ORDERING PARTS AND ACCESSORIES ....................................................................... 54
12 GLOSSARY........................................................................................................................55

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1 FCC NOTICE
NOTE:
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
WARNING:
Changes or modifications not expressly approved by Kaval Telecom Inc.
could void the user’s authority to operate the equipment.

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2 INTRODUCTION TO BDA’s
Bi-Directional Amplifiers (BDA’s) are radio frequency amplifiers that amplify signals in two
directions. There are two basic BDA Applications; Line Amplifiers and “Off-the-Air”...
2.1 BDA Line Amplifier System Application
In-building RF distribution system usually takes on one of several forms including, but limited to,
radiating cable, distributed tapped radiators, or high power repeater antennas. For in-building RF
distribution system that requires some gain to compensate for the system loss, line amplifier is the best
device for the job. Line Amplifiers provides amplifications of RF signals to recover signal loss
contributed by radiating cable and other system components.
Figure 1-1 shows an example of a subway tunnel RF distribution system using Line Amplifiers. The
system consists of Line Amplifiers strategically inserted between radiating cables. As the RF signal
travelling along the radiating cable, it loses strength because some of its energy is converted into heat.
Line amplifiers recover the RF loss by amplifying the signal to the desired signal strength before
sending it down the next section of radiating cables. Hence, the in-building RF seamless coverage can
be maintained.
2.2 BDA Line Amplifier Diagram

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2.3 BDA “Off-the-Air” Amplifier System Application
The Bi-Directional Amplifier is intended to extend Cellular coverage into areas with coverage
deficiency such as inside office buildings, shopping malls, hospitals etc. It is designed to be
located independent of the donor site and must be equipped with its own antenna systems - one
to communicate with the donor site and the other(s) to communicate with portables in the shadow
zone.
A typical in-building coverage extension system is shown in Figure 1-2. The head-end subsystem,
namely Kaval bi-directional amplifier, is responsible for the amplification of both incoming “off-the-air”
downlink signal and outgoing uplink signals. The in-building distribution antenna system comprises of
Coaxial cable, Signal taps, splitters and antennas to extend coverage on every floor, basement and
underground parking garage.
2.4 BDA “Off-the-Air” Drawing
This distributed antenna system is based on Kaval’s patented “Tapped Radiator” RF signal
distribution approach. The technology makes use of coaxial cable with Signal Taps strategically
located and connected to Omni-directional ground plane antennas. This technology offers
flexibility in system design, installation and optimization. Once the RF cable backbone has been
installed, additional signal taps and antennas can quickly and easily be added to a live system,
without the need to take the system out of service. Hence, new coverage areas can be added, or
the system can easily be modified if the layout should change (e.g. modernization retrofits or
process modifications).

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3 BDA1300 Bi-Directional Amplifier Description
3.1 BDA1300 Functional Description
The BDA1300 series Amplifier is a compact, yet flexible bi-directional amplifier. It is equipped with
a microprocessor based controller to provide a friendly user interface and to simplify set up and
operating procedures.
The BDA1300 consists of the following functions:
• 1 BDA Controller: Microprocessor based units that provides all control, fault
monitoring and settings for the BDA.
• 2 Duplexers D1, D2: Pass the Downlink frequency band to the mobile antenna and
the Uplink frequency band to the donor antenna and provide the isolation between
the Uplink and Downlink frequency bands.
• 2 Amplifiers A1, A2: Amplify the Uplink and Downlink signals.
• 2 Isolators C1, C2 (as required): Provide consistent matching for amplifier output.
• 1 Power Supply: Operates on 120/230VAC to provide 28V DC to amplifiers, BDA
Controller.
• BDA enclosure: Rugged Nema 4, 4x or 12 with heatsink attached to transfers heat
that dissipated from Amplifiers directly to the outside of the BDA enclosure.
• 1 AC Junction Box: This box consists of AC power switch, AC outlet and AC surge
protector.

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3.2 BDA1300 Block Diagram with Controller
D1 D2
DL
Booster
UL
Booster
DC
Power Supply
BDA Controller
AC
Junction Box
LEGEND
AC Power connection
DC Power connection
RF connection
Alarm & control connection
Donor
Mobile
AC -input
C1*
C2*
* C1, C2 will be added as required

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3.3 BDA1300 Components in Enclosure with Controller

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3.4 BDA1300 Block Diagram without Controller
D1 D2
DL
Booster
UL
Booster
DC
Power Supply
LEGEND
AC Power connection
DC Power connection
RF connection
Donor
Mobile
AC -input
C1*
C2*
*C1,C2 will be added as required