ETS-Lindgren 3125 User Manual
Model 3125 Series
Fixed Length Dipole
User Manual
ETS-Lindgren L.P. reserves the right to make changes to any product described
herein in order to improve function, design, or for any other reason. Nothing
contained herein shall constitute ETS-Lindgren L.P. assuming any liability
whatsoever arising out of the application or use of any product or circuit
described herein. ETS-Lindgren L.P. does not convey any license under its
patent rights or the rights of others.
© Copyright 1998–2010 by ETS-Lindgren L.P. All Rights Reserved. No part
of this document may be copied by any means without written permission
from ETS-Lindgren L.P.
Trademarks used in this document: The ETS-Lindgren logo is a trademark of
ETS-Lindgren L.P. Teflon is a registered trademark of E. I. du Pont de Nemours
and Company or its affiliates.
Revision Record | MANUAL 3125 | Part # 399072, Rev. D
Revision Description Date
A Initial Release November, 1998
B Edits/updates January, 2001
C Edits/updates March, 2002
D Rebrand September, 2010
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Table of Contents
Notes, Cautions, and Warnings ................................................ v
1.0 Introduction .......................................................................... 7
Tripod Options ............................................................................................... 8
ETS-Lindgren Product Information Bulletin ................................................... 9
2.0 Maintenance ....................................................................... 11
Annual Calibration ....................................................................................... 11
Optional Parts .............................................................................................. 11
Service Procedures ..................................................................................... 11
3.0 Specifications ..................................................................... 13
Electrical Specifications (Nominal) .............................................................. 13
Physical Specifications ................................................................................ 14
4.0 Mounting Instructions ....................................................... 15
5.0 Application ......................................................................... 19
Appendix A: Warranty ............................................................. 21
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Notes, Cautions, and Warnings
Note: Denotes helpful information intended to
See the ETS-Lindgren Product Information Bulletin for safety,
regulatory, and other product marking information.
provide tips for better use of the product.
Caution: Denotes a hazard. Failure to follow
instructions could result in minor personal injury
and/or property damage. Included text gives proper
procedures.
Warning: Denotes a hazard. Failure to follow
instructions could result in SEVERE personal injury
and/or property damage. Included text gives proper
procedures.
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vi |
1.0 Introduction
The ETS-Lindgren Model 3125
Series Fixed Length Dipole is a
family of antennas that are tuned to
operate between 440 MHz and
3010 MHz.
The Model 3125 Series is designed
for AAMI/FDA test requirements,
which substitute dipole antennas for
cellular telephones as an emissions
source when testing the
susceptibility of items such as
pacemakers, hearing aids, and
defibrillators.
The most common frequencies in the Model 3125 Series are included
in this manual. Additional frequencies are available; contact
ETS-Lindgren for more information.
The Model 3125 Series antennas are tuned, half-wave length resonant dipoles
with a series-parallel coaxial stub balun. Each antenna has fixed-length dipole
elements mounted in a Teflon® support block. The coaxial balun is terminated
into an SMA receptacle. Individual calibration data is included with each antenna.
An optional bracket is available to mount the Model 3125 Series antenna to an
ETS-Lindgren tripod or other positioning system. See Mounting Instructions on
15 for more information.
page
Use only non-metallic material for any label to be applied to the
Model 3125 Series. Testing has shown that applying a foil-backed
label adversely affects the tuned characteristics of the antenna.
Introduction | 7
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