Powerwave Technologies OFR400-A LINKnet OFR400-A RF Module, Model OFR400-A User Manual
Powerwave Technologies Inc. LINKnet OFR400-A RF Module, Model OFR400-A Users Manual
Users Manual
LINKnet™
OFR400 RF MODULES
OFR400 RF MODULESOFR400 RF MODULES
OFR400 RF MODULES
USER MANUAL
USER MANUALUSER MANUAL
USER MANUAL
INSTALLATION, OPERATION AND
INSTALLATION, OPERATION AND INSTALLATION, OPERATION AND
INSTALLATION, OPERATION AND
MAINTENANCE
MAINTENANCEMAINTENANCE
MAINTENANCE
KAVAL TELECOM INC.
60 Gough Road
Markham, Ontario, L3R 8X7
Telephone: (888) 86-KAVAL
Web: www.kaval.com
E-mail: info@kaval.com
Document #DCM000000019, Rev.5
January 20, 2001
LINKnet™ OFR400 RF MODULES ! USER MANUAL
DCM000000019
Printed: 2001-01-20 12:34:57
Revision Date: 1/20/01: ii
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© 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 INC. 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 INC. 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 TELECOM INC.
LINKnet™ OFR400 RF MODULES ! USER MANUAL
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TABLE OF
TABLE OF TABLE OF
TABLE OF
CONTENTS
CONTENTSCONTENTS
CONTENTS
1.
OFR400 MODULES .................................. 4
O
VERVIEW
.............................................................. 4
Theory Of Operation ......................................... 4
M
ODELS
................................................................. 4
B
LOCK DIAGRAM
..................................................... 5
OFR400 RF Module.......................................... 5
M
ODULE
S
PECIFICATIONS
....................................... 6
O
PERATION
............................................................ 7
Software Set-up ................................................ 7
Power On Self Test (POST).............................. 8
Normal Operation..............................................9
OFR Module....................................................10
A
NTENNA
I
NSTALLATION
........................................11
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Theory Of Operation
An OFR, or On Frequency Repeater, is a radio repeater that simultaneously
receives and transmits a single narrow band radio channel on exactly the same
frequency.
The OFR accomplishes its repeater function without store and forward circuitry, or
expensive conventional simulcasting techniques. The fact that the same frequency
is retransmitted by an OFR means that additional frequency allocations are not
required in situations where an existing radio coverage pattern needs to be
extended. The most common OFR 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 OFR 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 OFR systems is that of input to output antenna isolation. This must
be carefully engineered for each installation.
Standard On Frequency Radio Repeaters are designed for indoor use only and are
intended for mounting in a standard EIA 19 inch rack. Modular design of OFR
circuitry allows for easy servicing, stocking of spares, adaptability and upgrade
ability.
IMPORTANT NOTE: The OFR400 UHF LINKnet FM Modules
described in this Manual draw about 50% more current than the
OFR800 FM Modules. A Maximum of five may be used in a
LINKnet OFR1000 Card-Cage with no other modules. With other
Modules the maximums are...
With 1 other LINKnet Module: No more than 3 OFR400 UHF Modules
With 2 to 3 other LINKnet Modules: No more than 1 OFR400 UHF Modules
With 4 or more other LINKnet Modules: No OFR400 UHF Modules
OFR400 MODULE FAMILY
MODEL TYPE FREQUENCY
OFR400-A1 25 KHz Channels 406.125-430 MHz (FM)
OFR400-A2 12.5 KHz Channels 406.125-430 MHz (FM)
OFR400-C1 25 KHz Channels 450-470 MHz (FM)
OFR400-D1 25 KHz Channels 470-490 MHz (FM)
OFR400-E1 25 KHz Channels 490-512 MHz (FM)
1. OFR400 MODULES
Overview
Models
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OFR400 RF Module
Block diagram
Transmit Board
UMC Controller Board
Receive Board
IF Board
RF Input
406.125-512 MHz
RF Output
406.125-512 MHz
Micro-
Controller
with lines to
all Boards
Blind-Mate
to SMA RF
Connector
Blind-Mate
to SMA RF
Connector
Power &
Control to
Backplane
Gain Control
Communication
Interfaces
Gain
Control Test
Oscillator
Low Noise
Pre-Amplif ier Buf f er
Amplif iers
2'nd Local
Oscillator
First Local
Oscillator
Buf f ers, Filters, and
Linear Power Amplif ier
Power
Circuits
First Local
Oscillator
2'nd IF
Crystal
Filter
First IF
Filter
First IF
Filter
2'nd IF
Crystal
Filter
2'nd Local
Oscillator
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Frequency Bands See Model Chart
Modulation & Channel Spacing Narrowband FM
25 or 12.5 KHz as per Model Chart
RF Frequency Stability Tracks Input Signal Exactly
Max. RF Output Power 37 dBm
RF Output Power Range Power can be reduced 20 dB in 1 dB Steps
(AGC Controlled)
RF Output Power Variation vs. Input
(over -90 to -30 dBm) +/- 1 dB
Input Dynamic Range -110 to -30 dBm
Input Sensitivity Adjust Range -110 to -50 dBm
Input Hysteresis 1 to 10 dB
Adjacent Channel Selectivity 60 dB Minimum
Transmit Duty Cycle Continuous
Transmit Spurious -13 dBm max
Receive Conducted Spurious -57 dBm Max
Maximum Gain 140 dB
Audio Distortion & Noise <4% Increase
Transmit Key-Up & Key-Down Times <2 mS Key-Up, <1 mS Key-Down
Group Delay <120 uS for 25 KHz,
<160 uS for 12.5 KHz
RF Connectors SMA (50Ω) Connectors on back of Card-Cage
Module Power Supply Requirements 45 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,
Receive, Transmit
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 +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
Module Specifications
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Software Set-up
The OFR400 module is shipped pre-configured with the following factory set options:
OPTION RANGE OF VALUES DEFAULT VALUE
Frequency See Model Chart Order Specific
Receive Threshold
–110 to -50 dB -89 dB
Receive Hysteresis 1 to 10 dB 2.5 dB
Time Out 0 to 600 Seconds, or none 300 Seconds
Module Enabled On / Off On
Transmit Power Level 20 to 37 dBm Order Specific
In line with the versatility of the LINKnet
TM
Platform, it is possible to re-configure the
OFR400 module in the field. For further information on the modification software
and the PC adapter, contact KAVAL TELECOM INC. by E-mail: info@kaval.com
Default values may be changed when an order is placed. Check your order
confirmation (shipped with modules) for customized values.
Operation
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Power On Self Test (POST)
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.
•
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 TELECOM INC. 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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Normal Operation
The OFR400 Module has six LED’s on the faceplate:
1. OPERATING - Under normal operating conditions, this LED will flash
GREEN when RF Data is present.
2. STAND BY – Under the control of the Controller Module, the OFR400
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 – This Green LED will be on when a signal is being transmitted
4. Receive – This Green LED will be on when a signal is being received
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
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OFR Module
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•
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 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 Telecom 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
TELECOM INC. 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 Telecom 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
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.
Antenna Installation