Codan Radio Communications AMP-2-450 AMP2-450-30 User Manual AMP 2450 UHF Gen indd

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Document ID	560182
Application ID	I2jYthlBNZI9H+f9rqEqQQ==
Document Description	Users Guide
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	24.21kB (302656 bits)
Date Submitted	2005-07-08 00:00:00
Date Available	2005-08-15 00:00:00
Creation Date	2004-10-26 13:32:01
Producing Software	Adobe PDF Library 6.0
Document Lastmod	2005-07-07 13:07:02
Document Title	AMP-2450 UHF Gen.indd
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UHF AMP-2 30 W
POWER AMPLIFIER
INSTRUCTION MANUAL
406 - 470 MHZ
Covers Models:
AMP-2/450-30
Copyright © 2004 Daniels Electronics Ltd. All rights reserved. No
part of this publication may be reproduced, stored in a retrieval system
or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording or otherwise, without the prior written consent
of Daniels Electronics Ltd.
DE™ is a registered trademark of Daniels Electronic Ltd. registered in
the U.S. Patent and Trademark Office.
Document Number:
Revision:
Revision Date:
IM71-AMP2450-30
5-1-0
Jan 2005
Daniels Electronics Ltd.
Victoria, BC
PRINTED IN CANADA
ii
DOCUMENT CONTROL
This document has been produced, verified and controlled in
accordance with Daniels Electronics’ Quality Management System
requirements.
Please report any errors or problems to Daniels Electronics’ Customer
Service Department.
DOCUMENT REVISION
DEFINITION
Daniels Electronics Ltd. utilizes a three-level revision system. This
system enables Daniels to identify the significance of a revision.
Each element of the revision number signifies the scope of change as
described in the diagram below.
1-0-0
Major Revisions: The result of a major
change to product function, process or
requirements.
Minor Revisions: The result of a
minor change to product, process or
requirements.
Editorial Revisions: The result of typing
corrections or changes in formatting,
grammar or wording.
Three-level revision numbers start at 1-0-0 for the first release. The
appropriate element of the revision number is incremented by 1 for each
subsequent revision, causing any digits to the right to be reset to 0.
For example:
If the current revision = 2-1-1 Then the next major revision = 3-0-0
If the current revision = 4-3-1 Then the next minor revision = 4-4-0
If the current revision = 3-2-2 Then the next editorial revision = 3-2-3
The complete revision history is provided at the back of the document.
NOTE
The user’s authority to operate this equipment could be revoked through
any changes or modifications not expressly approved by Daniels
Electronics Ltd.
The design of this equipment is subject to change due to continuous
development. This equipment may incorporate minor changes in detail
from the information contained in this manual.
UHF AMP-2 30 W Power Amplifier Instruction Manual
IM71-AMP2450-30
iii
RF Exposure Warning
Exposure to radio frequency (RF) energy has been identified as a potential environmental factor that must be
considered before a radio transmitter can be authorized or licensed. The FCC has therefore developed maximum
permissible exposure (MPE) limits for field strength and power density, listed in FCC 47 CFR § 1.1310. The
FCC has furthermore determined that determination of compliance with these exposure limits, and preparation
of an Environmental Assessment (EA) if the limits are exceeded, is necessary only for facilities, operations and
transmitters that fall into certain risk categories, listed in FCC 47 CFR § 1.1307 (b), Table 1. All other facilities,
operations and transmitters are categorically excluded from making such studies or preparing an EA, except as
indicated in FCC 47 CFR §§ 1.1307 (c) and (d).
Revised FCC OET Bulletin 65 (Edition 97-01) provides assistance in determining whether a proposed or existing
transmitting facility, operation or device complies with RF exposure limits. In accordance with OET Bulletin 65
and FCC 47 CFR § 1.1307 (b), this Daniels Electronics Ltd. transmitter is categorically excluded from routine
evaluation or preparing an EA for RF emissions and this exclusion is sufficient basis for assuming compliance
with FCC MPE limits. This exclusion is subject to the limits specified in FCC 47 CFR §§ 1.1307 (b) and 1.1310.
Daniels Electronics Ltd. has no reason to believe that this excluded transmitter encompasses exceptional
characteristics that could cause non-compliance.
Notes:
• The FCC’s exposure guidelines constitute exposure limits, not emission limits. They are relevant to
locations that are accessible to workers or members of the public. Such access can be restricted or
controlled by appropriate means (i.e. fences, warning signs, etc.).
• The FCC’s limits apply cumulatively to all sources of RF emissions affecting a given site. Sites
exceeding these limits are subject to an EA and must provide test reports indicating compliance.
RF Safety Guidelines and Information
Base and Repeater radio transmitters are designed to generate and radiate RF energy by means of an external
antenna, typically mounted at a significant height above ground to provide adequate signal coverage. The
following antenna installation guidelines are extracted from Appendix A to OET Bulletin 65 and must be adhered
to in order to ensure RF exposure compliance:
Non-building-mounted Antennas:
Height above ground level to lowest point of antenna ≥ 10 m or
Power ≤ 1000W ERP (1640 W EIRP)
Building-mounted Antennas:
Power ≤ 1000 W ERP (1640 W EIRP)
The following RF Safety Guidelines should be observed when working in or around transmitter sites:
• Do not work on or around any transmitting antenna while RF power is applied.
• Before working on an antenna, disable the appropriate transmitter and ensure a
“DO NOT USE” or similar sign is placed on or near the PTT or key-up control.
• Assume all antennas are active unless specifically indicated otherwise.
• Never operate a transmitter with the cover removed.
• Ensure all personnel entering a transmitter site have electromagnetic energy awareness training.
For more information on RF energy exposure and compliance, please refer to the following:
1) FCC Code of Regulations; 47 CFR §§ 1.1307 and 1.1310.
2) FCC OET Bulletin 65, Edition 97-01, “Evaluating Compliance with FCC Guidelines for
Human Exposure to Radiofrequency Electromagnetic Fields”.
3) http://www.fcc.gov/oet/rfsafety/
UHF AMP-2 30 W Power Amplifier Instruction Manual
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Contents
General Information ............................................................... 1
Introduction ................................................................................................ 1
Performance Specifications ....................................................................... 2
Physical Specifications .............................................................................. 2
Installation and Site Operation ............................................... 3
General ...................................................................................................... 3
UHF AMP-2 30 W Power Amplifier Instruction Manual
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UHF AMP-2 30 W Power Amplifier Instruction Manual
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1
GENERAL
INFORMATION
“This equipment is not be operated within
the frequency band 406 - 406.1 MHz,
unless specifically authorized by the Federal
Communications Commission or Industry
Canada in conjunction with COSPAS/SARSAT”
INTRODUCTION
The MT 3/MT 4 repeater system is a VHF/UHF
radio system which is characterized by high
performance and reliability under the most
severe environmental conditions. The total
system is designed to provide dependable, low
maintenance performance, even in the most
difficult circumstances.
The MT 3/MT 4 series of modules are packaged
in the compact Eurostandard (5”h x 2.8”w x
7.5”d) housing, and are robustly designed for
mountain top or transportable applications. All of
the modules use high reliability components and
each module is accompanied with a complete
operational test report on delivery.
The MT 3/MT 4 radio system is specifically
designed to deliver high performance under
adverse conditions and comply with the design
specifications and the Industry Canada (IC)
Radio Standards Specification (RSS 119). In
addition, voltage stress testing is done over the
range of +11 to +16 Volts DC which is followed
by 24 hours of continuous operation at maximum
rated power output.
The UHF AMP-2 (AMP-2/450-30) power
amplifier module is engineered to provide an
adjustable 20 to 30 watts RF output over the
406 to 470 MHz UHF frequency range. The
UHF AMP-2 power amplifier module mates with
either of the MT 3/MT 4 UHF transmitter exciter
modules The combination may be mated with
either the MT 3 or MT 4 series radio systems
subrack.
UHF AMP-2 30 W Power Amplifier Instruction Manual
IM71-AMP2450-30
2
General Information
PERFORMANCE SPECIFI C AT I O N S
Frequency:
406 to 430 MHz and 450 to 470 MHz.
Models
AMP-2/450-30
Output Power:
20 to 30 Watts (set by exciter).
Output Impedance:
50 Ω
Spurious & Harmonics:
More than 75 dB below carrier.
Operating Voltage:
+13.8 Vdc nominal, range +11 to +16 Vdc
Transmit Current:
4.5 to 6 A at 30 W.
Standby Current:
Less than 2 mA.
Thermal Protection:
Thermal interlock disables at +80˚C (+175˚F).
Duty Cycle:
Continuous -40˚C to +60˚C operation.
Options:
• 13.8 Vdc Power indicator;
Exciter
MT 3 and MT 4; 2W Max. output for 30W PA
IC Number:
142A - AMP2450
FCC ID:
H4JAMP-2-450
Emission Designators:
F1D, F1E, F3D, F3E
PHYSICAL SPECIFICATIO N S
Operating Temperature:
-40˚C to +60˚C
Operating Humidity:
Up to 95% RH at 25˚C.
Corrosion Prevention:
Anodized aluminum construction. Stainless stee
hardware.
Connectors:
Type N standard.
Physical Dimensions:
Width: Height: Depth:
14.2 cm (5.6”) 12.8 cm (5.05”) 19 cm (7.5”)
Weight:
1.6 kg (3.5 lb).
Features:
• Heavy Duty Aluminum Heatsink;
• Over Temperature Indicator;
• Thermal switched (+40˚C) Fan.
• Forward Power Sensing Indicator/Output;
• Reflected Power Sensing Indicator/Output.
UHF AMP-2 30 W Power Amplifier Instruction Manual
IM71-AMP2450-30
3
INSTALLATION AND
SITE OPERATION
GENERAL
The UHF AMP-2 RF power amplifier module is
approved for operation with the MT 3 or
MT 4 exciter. Complete MT 3 subrack systems
shipped directly from the factory are normally
set to the appropriate options and output power
calibration as requested by the customer. These
units require no recalibration.
For UHF AMP-2 RF power amplifiers shipped
separately from the MT 3 subracks, install as
outlined:
Confirm exciter and power amplifier are aligned
for the same frequency. (See Alignment Procedure).
Remove the blank cover plates or TX-RX pair
in the “B” System subrack slot.
Install the UHF AMP-2 in slot 39 (visible via the
marker hole on the upper left UHF AMP-2 front panel).
NOTE: If the unit is being adjusted with the
extender card, a voltage drop of
+1.0 to +1.5 Vdc will occur when the
power amplifier is transmitting. This
voltage drop must be compensated
to permit a valid power output
measurement.
Connect the output of the exciter to the input
of the UHF AMP-2 power amplifier with the cable
provided.
Connect the antenna system and key the
transmitter. The LED indicators are defined as follows:
UHF AMP-2 30 W Power Amplifier Instruction Manual
IM71-AMP2450-30
4
Installation and Site Operation
Power Indicator - indicates +13.8 Vdc is applied to the transmitter when the ON-OFF
switch is activated. An internal connector on the RF Sensor PCB disables the power
indicator LED in the event that standby LED current drain must be eliminated.
TX Indicator - indicates that a preset forward RF power level is present at the transmitter
output. The threshold level is internally adjustable for various RF output levels over the
20-30 watt range.
Over Temperature Indicator - (O/T) a thermostat control switch interrupts the input supply
voltage (nominally +13.8 Vdc) to the power amplifier when the heat sink temperature
exceeds 175˚F (80˚C). The over temp thermostat will reset at 145˚F (63˚C), thus
providing hysterisis. The Over Temperature indicator is only operational when exciter
drive is present.
VSWR Indicator - Normally set up at the factory. This indicator is internally set on the RF
Sensor PCB for a 50 ohm resistive match. When appreciable reverse power is sensed
(high VSWR), the VSWR indicator LED turns on. The reverse power threshold for this
indicator is internally adjustable as required.
The fan is activated when the UHF power amplifier output heat sink temperature reaches +40˚C. The
fan’s operating temperature range is -20˚C to +60˚C. The fan sensor will not activate the fan when the
ambient temperature is below -20˚C.
UHF AMP-2 30 W Power Amplifier Instruction Manual
IM71-AMP2450-30

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