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
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
TABLE OF
TABLE OF
TABLE OF TABLE OF
CONTENTS
CONTENTS
CONTENTSCONTENTS
1.
LNKC1900 MODULES.............................. 4
O
VERVIEW
Theory Of Operation ......................................... 4
Power On Self Test (POST).............................. 8
Normal Operation.............................................. 9
LINKNET CDMA PCS MODULE Module ....... 10
A
NTENNA INSTALLATION
........................................ 11
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
1. LNKC1900 MODULES
DCM000000053
Overview
Models
Theory Of Operation
A LINKNET CDMA PCS MODULE is a banded repeater amplifier. The most
common LINKNET CDMA PCS 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 CDMA PCS 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 CDMA PCS MODULE
systems is that of input to output antenna isolation. This must be carefully
engineered for each installation.
The Modules are designed for indoor use only and are intended for mounting in a
standard EIA 19 inch rack. Modular design of LINKNET CDMA PCS MODULE
circuitry allows for easy servicing, stocking of spares, adaptability and upgrade
ability.
LNKC1900 MODULE FAMILY
MODEL TYPE FREQUENCY
LNKC1900-D
DownLink
1.25MHz BandWidth
1930 to 1990 MHz
LNKC1900-D5
LNKC1900-D15
LNKC1900-U
LNKC1900-U5
LNKC1900-U15
DownLink
5MHz BandWidth
DownLink
15MHz BandWidth
UpLink
1.25MHz BandWidth
UpLink
5MHz BandWidth
UpLink
15MHz BandWidth
1930 to 1990 MHz
1930 to 1990 MHz
1850 to 1910 MHz
1850 to 1910 MHz
1850 to 1910 MHz
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
DCM000000053
Block diagram
RF Output
1.8/1.9GHz
Blind-Mate
to SMA RF
Connector
UMC Controller Board with TCXO
Power &
Control to
Backplane
RF Input
1.8/1.9GHz
LNKC1900 RF Module
Transmit Board
Buffers, Filters, and
Linear Power Amplifier
Power
Sense
Power
Circuits
Communication
Interfaces
Receive Board
Low Noise
Pre-AmplifierBuffer
MicroController
with lines to
all Boards
Digital Gain
Control
Local
Oscillator
Local
Oscillator
Amplifiers
IF Board
Digital Gain
Control
Band Selecting
SAW Filter
Printed: 01.0 5.30,10:37
Blind-Mate
to SMA RF
Connector
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
DCM000000053
Module Specifications
Frequency Bands See Model Chart
Modulation & BandWidths
Optimized for CDMA
1.25, 5, or 15 MHz BandWidth
RF Frequency Stability Tracks Input Signal Exactly
Maximum Possible Power
(CDMA or un-modulated)
These are NOT the recommended levels,
see Recommended De-Rating Chart.
RF Gain Adjustment Range
1 Carrier: +36.3 dBm
2 Carriers: +24.7 dBm each
3 Carriers: +23.0 dBm each
+65 to +95 dB
in 1 dB Steps
Transmit Duty Cycle Continuous
Transmit Spurious -13 dBm max
Receive Conducted Spurious -57 dBm Max
Group Delay <5 uS
Noise Figure <6 dB
RF Connectors
SMA (50Ω) Connectors on back of Card-Cage
Module Power Supply Requirements 40 Watts Maximum
Edge Connector & 2 Blind-Mate RF Connectors to
Card-Cage, DB-15 Connector on back of Card-
Connections
Cage provides per-Module Fault Relay,
Interconnect to other Modules, & RS-232
Connection
Front Panel Indicators Operating, Stand by, Fault, Program Mode
RF Modules may be configured either via the
Configuration Options
optional Controller Module, or via a PC and an
RS-232 Connection via the Card-Cage.
Operating Temperature Range
-10 to +50
o
C; Consult Kaval for installation specific
forced-air 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
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
Operation
Software Set-up
The LNKC1900 module is shipped with the following factory set options:
OPTION RANGE OF VALUES DEFAULT VALUE
Frequency Band See Model Chart Order Specific
DCM000000053
Gain
Power Limiting +7 to +27 dBm +27 dBm
+65 to +95 dB +65 dB
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 LinkNet
TM
Platform, it is possible to re-configure the
LNKC1900 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 LinkNet
TM
Platform, it is possible to re-configure the
LNKC1900 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 HyperTermin al 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.
FREQ #########: Displays or Sets the current Transmit Frequency (in Hertz).
TXPOWER ###: Displays or Sets the Transmit Power Level (in tenths of a dBm).
RXTHRESH -####: Displays or Sets the Receive Threshold Level (in tenths of a dBm).
RXHYSTER ##: Displays or Sets the Receive Hysteresis (in tenths of a dB).
TIMEOUT ####: Displays or Sets the Timeout-Timer value (in Seconds).
TESTOSC 1 or 0: Enables or Disables the Test Oscillator.
Printed: 01.0 5.30,10:37
Please consult Kaval Wireless Technologies for further support.
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
Recommended De-Rating Chart
For the 5 MHz and 15 MHz BandWidth Models, if there will be multiple CDMA
Carriers, it is recommended that they be de-rated in the system design as shown for
proper operation...
Number of Carriers Power per Carrier
1 +27 dBm
2 +23 dBm
3 +21 dBm
4 +19 dBm
5 +17 dBm
DCM000000053
Each system 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.
Power On Self Test (POST)
•
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.
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
Normal Operation
The LNKC1900 Module has six LED’s on the faceplate:
1. OPERATING - Operating normally.
2. STANDBY – Under the control of the Control Module, the LNKC1900
Module has the ability to act as a duplex transmitter, sitting perpetually in
Stand by Mode waiting for the primary transmitter to fail. 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 reprogrammed by the Controller Module. This will signify that the unit is
powered on but unavailable for use.
DCM000000053
6. FAULT – Red LED, If the internal diagnostics for the module detect a
problem, then this LED will remain on
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
LINKNET CDMA PCS MODULE Module
DCM000000053
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LinkNet™ LNKC1900 RF MODULES ! USER MANUAL
DCM000000053
Antenna Installation
•
All Antenna Installation to be performed by Qualified Technical Personnel only.
•
Antenna Installation Instructions and locations below are for the purpose of
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 10 dB. 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 100
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.
•
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™ (+36.3 dBm); +24.3 dBm, or 0.27
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.
Printed: 01.0 5.30,10:37
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.
Revision Date:5/30/01 11
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