Powerwave Technologies LNKA100 LINKNET RF BROADBAND AMPLIFIER MODULE User Manual Kaval OFR 800
Powerwave Technologies Inc. LINKNET RF BROADBAND AMPLIFIER MODULE Kaval OFR 800
Contents
- 1. USERS MANUAL
 - 2. BROCHURE
 
USERS MANUAL

LinkNet™
LinkNet™LinkNet™
LinkNet™ 
LNKA100, LNKA400, LNKA800
LNKA100, LNKA400, LNKA800LNKA100, LNKA400, LNKA800
LNKA100, LNKA400, LNKA800 
RF BROADBAND
RF BROADBANDRF BROADBAND
RF BROADBAND 
AMPLIFIER MODULES
AMPLIFIER MODULESAMPLIFIER MODULES
AMPLIFIER MODULES 
USER MANUAL
USER MANUALUSER MANUAL
USER MANUAL 
INSTALLATION, OPERATION
INSTALLATION, OPERATIONINSTALLATION, OPERATION
INSTALLATION, OPERATION 
AND MAINTENANCE
AND MAINTENANCEAND MAINTENANCE
AND MAINTENANCE 
KAVAL WIRELESS TECHNOLOGIES 
60 Gough Road 
Markham, Ontario, L3R 8X7 
Telephone: (888) 86-KAVAL 
Web:   www.kaval.com 
E-mail:  info@kaval.com 
Document #DCM000000054, Rev.12 
December 15, 2003 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  2003-12-15 10:19:33 
 Revision Date: 12/15/03:  ii
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© 2000 KAVAL WIRELESS TECHNOLOGIES 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 WIRELESS TECHNOLOGIES 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 WIRELESS 
TECHNOLOGIES, is strictly prohibited.  
KAVAL WIRELESS TECHNOLOGIES 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 WIRELESS TECHNOLOGIES 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 WIRELESS 
TECHNOLOGIES waives responsibility for any labour, materials, or costs incurred by any person or party as 
a result of using this document. KAVAL WIRELESS TECHNOLOGIES, 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 WIRELESS TECHNOLOGIES has been 
informed of their potential occurrence, arising out of or in connection with this document or its use. 
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This manual makes reference to trademarks that are the property of other companies.  References are used 
only to refer to the products or services of the trademark owners.  
LinkNet™ is a trademark of KAVAL WIRELESS TECHNOLOGIES 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  2003-12-15 10:19:33 
 Revision Date: 12/15/03:  iii
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS 
1. LNKA MODULES...................................... 4 
OVERVIEW.............................................................. 4 
Theory Of Operation ......................................... 4 
MODELS ................................................................. 4 
BLOCK DIAGRAM ..................................................... 5 
LNKA RF Module .............................................. 5 
MODULE SPECIFICATIONS ....................................... 6 
OPERATION ............................................................ 7 
Software Set-up ................................................ 7 
Configuration..................................................... 7 
De-Rating Chart ................................................ 8 
Power On Self Test (POST).............................. 9 
Fault Indications ................................................ 9 
Normal Operation............................................ 10 
ANTENNA INSTALLATION ........................................ 12 
FCC INFORMATION TO USERS............................... 13 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  03.12.15,10:19 
 Revision Date:12/15/03    4
Theory Of Operation 
A LINKNET AMPLIFIER MODULE is a Broad-Band Digitally Controlled Class-A 
Amplifier. The most common LINKNET AMPLIFIER MODULE applications are the 
extension of above ground signals into buildings, tunnels, vehicles or the extension 
of radio coverage patterns into outdoor shaded areas such as deep valleys. 
From an applications standpoint, an LINKNET AMPLIFIER MODULE is very similar 
to a regular two-way radio repeater. On Frequency Radio Repeaters can be 
combined using regular two-way radio multicoupling or duplexing equipment and 
have input and output signal characteristics to those of regular transmitters and 
receivers. The one special consideration in LINKNET AMPLIFIER MODULE 
systems is that of input to output antenna isolation. This must be carefully 
engineered for each installation. 
These Modules are designed for indoor use only and are intended for mounting in a 
standard EIA 19 inch rack. Modular design of LINKNET AMPLIFIER MODULE 
circuitry allows for easy servicing, stocking of spares, adaptability and upgrade 
ability. 
LNKA MODULE FAMILY 
MODEL  TYPE  FREQUENCY 
LNKA100-A  Broadband Amplifier  136-155 MHz 
LNKA100-B  Broadband Amplifier  150-174 MHz 
LNKA400-A Broadband Amplifier  403-430 MHz 
Future Release 
LNKA400-B Broadband Amplifier  450-512 MHz 
Future Release 
LNKA800-A  Broadband Amplifier  806-824 MHz 
LNKA800-B  Broadband Amplifier  851-869 MHz 
LNKA800-C  Broadband Amplifier  824-849 MHz 
LNKA800-D  Broadband Amplifier  869-894 MHz 
LNKA800-E  Broadband Amplifier  896-901 MHz 
LNKA800-F Broadband Amplifier 
928-940 MHz Capable 
929-930 / 935-940 FCC Approved 
1. LNKA MODULES
Overview 
Models 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
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LNKA RF Module 
Block diagram 
Amplifier Board
UMC Controller Board without TCXO
RF Input
RF Output
Micro-
Controller
with lines to
all Boards
SMA RF
Connector
SMA RF
Connector
Power &
Control to
Backplane
AGC Gain Control Loop
Communication
Interfaces
Gain
Control
Filter
Linear Power Amplifier
Power
Circuits
Filter
Digital Gain Control

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
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Frequency Bands  See Model Chart 
Modulation & Channel Spacing  Broadband Amplifiers 
RF Output Power Capability  1dB Compression Point = +37 dBm Typical 
IP3 Intermodulation = +47 dBm Typical 
AGC Control Adjustment Range  +15 to +30 dBm or Disabled 
AGC Attack Time (10%-90%) 
AGC Decay Time (90%-10%) 
0.5 - 5 mS Typical 
50 - 200 mS Typical 
RF Gain Adjustment Range  +34 to +84 dB 
in 1 dB Steps 
Gain Variation over Passband  2 dB Maximum 
Max RF Input  +3 dBm with Min Gain & Max RF Out 
Noise Figure  <8 dB, 5 dB Typical 
Maximum RF Input 
Output Level from De-rating Chart minus the Gain. 
As an example, for 1 FM Carrier (+37 dBm) at 
minimum Gain (+34 dB) 
the Maximum RF Input is +3 dBm. 
Transmit Duty Cycle  Continuous 
Transmit Spurious  -13 dBm max 
Receive Conducted Spurious  -57 dBm Max 
Group Delay  < 200 nS 
(< 100 nS Variation across Passband) 
Input Return Loss  >14 dB 
RF Connectors  SMA (50) Connectors 
Module Power Supply Requirements  40 Watts Maximum 
Connections 
Edge Connector & 2 SMA RF Connectors, DB-15 
Connector on back of Card-Cage provides per-
Module Fault Relay, Interconnect to other 
Modules, & RS-232 Connection 
Front Panel Indicators  Operating, Stand by, Fault, Program Mode 
Configuration Options 
RF Modules may be configured either via the 
optional Controller Module, or via a PC and an 
RS-232 Connection via the Card-Cage. 
Operating Temperature Range  -10 to +50oC; consult Manual DCM000000008 for 
cooling requirements 
Operating Humidity Range  10 to 90% RH, Non-Condensing 
Size & Weight  9.11” High, 2.00” Wide, 14.00” Deep, 
10 lbs, 4.5 kg Max 
FCC Identifiers 
FCC: H6M-LNKA100  VHF (pending) 
 H6M-LNKA400 UHF (pending) 
 H6M-LNKA800 800-900MHz 
Industry Canada Certifications 
IC: 1541A-LNKA100 VHF (pending) 
 1541A-LNKA400 UHF (pending) 
 1541311246A 800-900MHz 
Also consult the main LinkNet™ Manual DCM000000008. 
Module Specifications 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  03.12.15,10:19 
 Revision Date:12/15/03    7
Software Set-up 
LNKA modules are shipped with the following factory set options: 
OPTION  RANGE OF VALUES  DEFAULT VALUE
Frequency  See Model Chart  Order Specific 
Gain +34 to +84 dB  +34 dB 
AGC  +15 to +30 dBm or Disabled  +30 dBm 
Module Enabled  On / Off  On 
Default values may be changed when an order is placed.  Check your order 
confirmation (shipped with modules) for customized values.  
In line with the versatility of the LinkNetTM Platform, it is possible to re-configure the 
LNKA module in the field.  For further information on the modification software and 
the PC adapter, contact KAVAL WIRELESS TECHNOLOGIES by E-mail: 
info@kaval.com 
Configuration 
In line with the versatility of the LinkNetTM Platform, it is possible to re-configure the 
LNKA module in the field, either with a Personal Computer (PC) or via the optional 
Control Module. To use a PC it is necessary to have a Kaval CAB000000057 
Control Cable to connect between the appropriate Module's DB15 connector on the 
back of the Card-Cage and the standard DB9 RS232 Connector on the PC. On the 
PC a terminal emulation program such as HyperTerminal is used to communicate 
to the LinkNet Module. The settings are 9600 baud, 8 bits, no parity, and 1 stop bit. 
Commands are one or two words followed by pressing Return. Commands may be 
given in upper or lower-case. Available commands are... 
ACCESS USER:  Required as a simple password to gain access to customer 
settable parameters and diagnostics; This will time-out after 10 
minutes, and may have to be re-typed. 
HELP or  ?:  Displays a list of Available Commands. 
LIST:  Displays Current Settings and Status Faults, Etc. 
VER:  Display the current Version of Software. 
ENABLE 1 or 0:  Enables or Disables the Module. 
GAIN ###:  Displays or Sets the Module Gain (in tenths of a dB). 
AGCTHRESH ###:  Displays or Sets the AGC Level (in tenths of a dBm). 
AGCEN 1 or 0:  Enables or Disables AGC. 
Please consult Kaval Wireless Technologies for further support. 
Operation 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
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 Revision Date:12/15/03    8
De-Rating Chart 
To maintain the FCC Spurious Emissions limit of -13 dBm maximum, for multiple 
carriers it is necessary to de-rate their power level. For FM carriers, they need to be 
de-rated as shown... 
Number of Carriers Power per Carrier 
1 +37 dBm 
2 +26 dBm 
3 +24 dBm 
4 +22 dBm 
5 +20 dBm 
6 +19 dBm 
7 +18 dBm 
8 +17 dBm 
9 +16 dBm 
10 +15 dBm 
15 +13 dBm 
20 +11 dBm 
25 +10 dBm 
30 +9 dBm 
For complex CDMA, TDMA, GSM, etc. carriers, typically de-rate by a further 3 to 5 
dB. Consult Kaval for more information. 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
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 Revision Date:12/15/03    9
Power On Self Test (POST) 
Each Module automatically performs a self-diagnostics when inserted into the 
system Card-cage.  These tests determine that the unit is a) correctly installed in the 
Card-cage and b) not damaged in transit.  
•  All six of the LED’s on the front panel will flash 3 times 
•   If the LED’s do NOT flash three times, then remove the module, check the power 
source, and re-insert the module, (See Installation Instructions). 
•  If the card is “OK” the LED’s will continue normally. (See Normal Operation) 
•  If there is a fault, then the Red Fault LED will remain on.  If this occurs, contact 
your KAVAL WIRELESS TECHNOLOGIES Service Representative, (See 
Warranty / RMA Procedures). 
The Power On Self Test is Not an RF test, it only verifies that there is power to 
the unit and that the logical circuitry is functioning. 
Fault Indications 
Each Module continuously performs internal diagnostics. If a problem is detected it 
will activate its Red Fault LED and Fault Relay. Faults detected include... 
•  Over Temperature 
•  Misc. Internal Faults 
Detailed Faults are detected by the optional Gateway Module. Details may also be 
determined via the Module's Control Port Connector and an RS232 connected 
Terminal Emulator using the LIST command. 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  03.12.15,10:19 
 Revision Date:12/15/03   10 
Normal Operation 
The LNKA Module has six LED’s on the faceplate: 
1.  OPERATING - Operating normally. 
2.  STANDBY – Under the control of the Gateway Module. 
3.  TRANSMIT – No function on these Modules. 
4.  RECEIVE – No function on these Modules. 
5.  PROGRAM – This LED will be constant Amber when the unit is being re-
programmed by the Controller Module. This will signify that the unit is 
powered on but unavailable for use. 
6.  FAULT – Red LED, If the internal diagnostics for the module detect a 
problem, then this LED will remain on 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  03.12.15,10:19 
 Revision Date:12/15/03   11 
LINKNET LNKA AMPLIFIER MODULE 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  03.12.15,10:19 
 Revision Date:12/15/03   12 
•    All Antenna Installation to be performed by Qualified Technical Personnel only. 
•    Antenna Installation Instructions and locations below are for the purpose of 
satisfying FCC RF Exposure Compliance requirements. 
•   Note that if multiple LinkNet™ Modules are used, the Instructions below 
apply to the composite power output of all Modules when transmitting 
simultaneously. 
•   The Roof Top Antenna or Antennae for linking to the Donor Site(s) is/are 
directional (high gain) Antennae, fixed-mounted physically on the side or top of a 
building, or on a tower. The Antenna Gain must be no more than 20 dBi. If 
multiple LinkNet™ Modules are used with output combiners into any one 
Antenna, and/or multiple Antennae are used on one Roof Top, then the 
sum of composite powers into all Roof Top Antennae must not exceed 20 
Watts maximum. Please consult Kaval Wireless for assistance as required. The 
Roof Top Antennae location should be such that only Qualified Technical 
Personnel can access it, and that under normal operating conditions no other 
person can touch the Antenna, or approach within 10 meters of the Antenna. 
•  For the Cellular Uplink Band (824-849 MHz) the Roof Top Antenna or 
Antennae for linking to the Donor Site(s) has the added restriction that the 
Effective Radiated Power (ERP) must not exceed 7 Watts (+38 dBm). Thus, if 
the AGC is set (as per the Carrier De-Rating Chart) to +28dBm as an example, 
the maximum allowed Antenna Gain must be no more than 10 dBi. 
•   The In-Building Antenna connection is via a coaxial cable distribution system 
with Signal Taps at various points connected to the fixed-mounted Indoor 
Antennae. This is shown in the figure in the Introduction. The Indoor Antennae 
are simple 1/4 Wavelength (0 dB Gain) types. They are used with KAVAL 
WIRELESS TECHNOLOGIES 12, 16, or 20 dB Cable Taps. As such the 
maximum EIRP will be at the first Tapped Antenna, which will be 12 dB below 
the maximum signal level of the LinkNet™ (+40 dBm); +28 dBm, or 0.63 Watts 
EIRP. If multiple LinkNet™ Modules are used with output combiners, then 
the composite power output of all Modules transmitting simultaneously 
must meet this maximum EIRP requirement. Please consult Kaval Wireless 
for assistance as required. These Antennae are to be installed such that no 
person can touch the Antenna, or approach within 0.2 Meters. 
Antenna Installation 

 LinkNet™  LNKA RF MODULES  z  USER MANUAL  DCM000000054
Printed:  03.12.15,10:19 
 Revision Date:12/15/03   13 
ANTENNA INSTALLATION 
WARNING 
ALL ANTENNA INSTALLATION IS TO BE PERFORMED BY QUALIFIED 
TECHNICAL PERSONNEL ONLY. 
ANTENNA INSTALLATION INSTRUCTIONS AND LOCATIONS ARE FOR THE 
PURPOSE OF SATISFYING FCC RF EXPOSURE COMPLIANCE 
REQUIREMENTS, AND ARE NOT OPTIONAL. 
ALL ROOF TOP ANTENNA INSTALLATION MUST BE SUCH THAT NO PERSON 
CAN TOUCH THE ANTENNA, OR APPROACH CLOSER THAN 10 METERS.  
ALL IN-BUILDING ANTENNAE INSTALLATIONS MUST BE SUCH THAT NO 
PERSON CAN TOUCH THE ANTENNAE, OR APPROACH CLOSER THAN 0.2 
METERS. 
•  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 provided 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 
COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. 
FCC Information to 
Users