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Kaval LinkNet LNKA800-A, User Manual

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Kaval LinkNet LNKA800-A User Manual Download Page 4

 

LinkNet™  LNKA800 RF MODULES  

!

  USER MANUAL 

DCM000000054

 

 

 

Printed:  01.05.08,16:18 

 

Revision Date:5/8/01 

   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. 

LNKA800 MODULE FAMILY 

MODEL 

TYPE 

FREQUENCY 

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 

896-902 MHz 

LNKA800-F 

Broadband Amplifier 

928-941 MHz 

 

1 .   L N K A 8 0 0  M O D U L E S

Overview 

Models 

Summary of Contents for LinkNet LNKA800-A

Page 1: ... U S E R M A N U A L U S E R M A N U A L U S E R M A N U A L U S E R M A N U A L I N S T A L L A T I O N O P E R A T I O N I N S T A L L A T I O N O P E R A T I O N I N S T A L L A T I O N O P E R A T I O N I N S T A L L A T I O N O P E R A T I O N A N D M A I N T E N A N C E A N D M A I N T E N A N C E A N D M A I N T E N A N C E A N D M A I N T E N A N C E KAVAL WIRELESS TECHNOLOGIES 60 Gough Ro...

Page 2: ...ied 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 typogr...

Page 3: ...O F C O N T E N T S C O N T E N T S C O N T E N T S C O N T E N T S 1 LNKA800 MODULES 4 OVERVIEW 4 Theory Of Operation 4 MODELS 4 BLOCK DIAGRAM 5 LNKA800 RF Module 5 MODULE SPECIFICATIONS 6 OPERATION 7 Software Set up 7 Configuration 7 De Rating Chart 8 Power On Self Test POST 9 Normal Operation 10 LINKNET AMPLIFIER MODULE Module 11 ANTENNA INSTALLATION 12 ...

Page 4: ...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 AMP...

Page 5: ...troller Board without TCXO RF Input 806 941 MHz RF Output 806 941 MHz Micro Controller with lines to all Boards Blind Mate to SMA RF Connector Blind Mate to SMA RF Connector Power Control to Backplane AGC Gain Control Loop Communication Interfaces Gain Control Dielectric Filter Linear Power Amplifier Power Circuits Dielectric Filter Digital Gain Control ...

Page 6: ... uS RF Connectors SMA 50Ω Connectors on back of Card Cage Module Power Supply Requirements 40 Watts Maximum Connections Edge Connector 2 Blind Mate RF Connectors to Card Cage 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 configu...

Page 7: ... 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 Comm...

Page 8: ...le 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 ...

Page 9: ...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...

Page 10: ...l This LED should be constant Amber If a Fault should occur with the primary module the Stand by unit will immediately become the primary unit at which time the Stand by LED will be turned off and the LED s will show an operating 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 th...

Page 11: ...LinkNet LNKA800 RF MODULES USER MANUAL DCM000000054 Printed 01 05 08 16 18 Revision Date 5 8 01 11 LINKNET AMPLIFIER MODULE Module ...

Page 12: ...f the Antenna 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 fir...

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