ETS-Lindgren 3126 User Manual
Model 3126-2450
Model 3126-3600
Model 3126 Series
Sleeve Dipole Antenna
User Manual
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ETS-Lindgren Inc. reserves the right to make changes to any products herein to improve
Revision
Description
Date
A
Initial Release
January, 2004
B
Addition of new model data
March, 2006
C
Updated Specifications; rebrand
November, 2010
D
Minor corrections/edits
October, 2014
functioning or design. Although the information in this document has been carefully
reviewed and is believed to be reliable, ETS-Lindgren does not assume any liability arising
out of the application or use of any product or circuit described herein; nor does it convey
any license under its patent rights nor the rights of others. All trademarks are the property
of their respective owners.
© Copyright 2004–2014 by ETS-Lindgren Inc. All Rights Reserved. No part of this
document may be copied by any means without written permission from
ETS-Lindgren Inc.
Trademarks used in this document: The ETS-Lindgren logo is a registered trademark of
ETS-Lindgren Inc; Teflon is a registered trademark of E. I. du Pont de Nemours and
Company or its affiliates.
Revision Record
MANUAL,3126 | Part # 399155, Rev. D
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Table of Contents
Notes, Cautions, and Warnings ................................................ v
1.0 Introduction .......................................................................... 7
Standard Configuration ............................................................................... 9
Optional Items ............................................................................................ 9
CTIA Ripple Test Mounting Kit ............................................................ 9
Model 3127 Resonant Loop Antenna .................................................. 9
ETS-Lindgren Product Information Bulletin ............................................... 10
2.0 Maintenance ....................................................................... 11
Service Procedures .................................................................................. 12
Contacting ETS-Lindgren .................................................................. 12
Sending a Component for Service..................................................... 12
Calibration Services and Annual Calibration...................................... 12
3.0 Specifications ..................................................................... 13
Performance Specifications ...................................................................... 13
Physical Specifications ............................................................................. 16
4.0 Mounting Information ........................................................ 17
5.0 Operation ............................................................................ 19
Appendix A: Warranty ............................................................. 21
Duration of Warranties .............................................................................. 21
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v
Notes, Cautions, and Warnings
Note: Denotes helpful information intended to 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.
Note: See the ETS-Lindgren Product Information Bulletin for safety,
regulatory, and other product marking information.
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7
Introduction
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The ETS-Lindgren Model 3126
Series Sleeve Dipole is designed as
precision gain references for antenna
range calibration and to meet the
Cellular Telecommunication and
Internet Association (CTIA) ±0.1 dB
symmetry requirement for ripple test
measurements.
These antennas are truly
omni-directional, having an electric
dipole pattern approaching that of a
half-wave resonant dipole with typical
gains between 1.5 dB and 2.0 dB.
Model 3126-2450
1.0 Introduction
The sleeve dipole design allows the antenna to be end-fed to avoid cable and
feed-point interactions that interfere with the performance of the antenna. Integral
quarter-wave chokes and/or ferrite loading (depending on frequency range) also
helps to reduce cable interaction. This design also provides exceptional
symmetry (better than ±0.1 dB, 0.2 dB peak-to-null) to meet or exceed CTIA
criteria for ripple test antennas.
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