Esco ETS LINDGREN BiConiLog 3142E User manual

Model 3142E
BiConiLog ™ Antenna
User Manual
PN: 399337
October, 2023
Rev G
ets-lindgren.com

2
ETS-Lindgren Inc. reserves the right to make changes to any products herein to improve 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 2012 - 2023 written permission from 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.; Teon is
a registered trademark of E. I. du Pont de Nemours and Company or its a󰀩liates.
Revision Record
MANUAL, 3142E | Part # 399337 Rev G
Revision Description Date
AInitial Release July, 2012
BUpdated frequency range; updated
boom options
February, 2015
CUpdated manual format and added
typical data for cross polarization
February, 2021
DUpdated Assembly photo captions to
correct polarization
July, 2021
ECorrected cross references August, 2022
FAdded spacers January, 2023
GRemoved 4-TR October, 2023

32
TABLE OF CONTENTS
Notes, Cautions, and Warnings 5
Introduction 6
7-TR Tripod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
ETS-Lindgren Product Information Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Maintenance 8
Replacement and Optional Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Service Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Contacting ETS-Lindgren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Sending a Component for Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Calibration Services and Annual Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Specications 9
Electrical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Assembly 10
Attach Bowtie Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
To attach the bowtie elements: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting 12
Using Included Mounting Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
To attach the included adapters to the Model 3142E: . . . . . . . . . . . . . . . . . . . . . . 13
Using the Stinger to Mount to a Model 2175 MiniMast . . . . . . . . . . . . . . . . . . . . . . . 13
Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Additional Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7-TR and Mast Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2X2 Boom Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Typical Data 17
Typical Antenna Factor and Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Typical VSWR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Typical Half Power Beamwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Typical Radiation Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
30MHz-50MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
70MHz-90MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
100 MHz-200MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
300MHz-400MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4
500MHz-600MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
700MHz-800MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
900MHz-1000MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2000MHz-3000MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4000MHz-5000MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6000MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Typical Cross Polarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

54
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.
*All notes, cautions, and warnings will be located on the left column area of the page.
See the ETS-Lindgren Product Information Bulletin for safety, regulatory, and other product marking
information

6
Introduction
Model 3142E shown in horizontal polarization
The ETS-Lindgren Model 3142E BiConiLog™
Antenna is designed as a dual-purpose antenna
that can be used for both immunity and emission
testing. From 30 MHz to 6 GHz, the Model 3142E
exhibits an average 5.5 dB gain. Applications
for the Model 3142E include emissions testing,
immunity measurements, and medical equipment
testing.
The Model 3142E Antenna includes a stinger
mount; it also includes a mounting bracket and a
1/4–20 thread knob to attach to an ETS-Lindgren
tripod or tower adapter.
Model 3142E shown in vertical
polarization
For the variety of mounting options available for the Model 3142E, see Mounting.
WARRANTY
Only qualied personnel
should operate (or service)
this equipment. If you have
any questions concerning
maintenance, contact
ETS-Lindgren Technical
Support. Warranty may
be voided if housing is
opened.
ETS-Lindgren may
substitute a similar part
or new part number with
the same functionality for
another part/part number.
Contact ETS-Lindgren
for questions about part
numbers and ordering
parts.

76
7-TR Tripod
ETS-Lindgren o󰀨ers the following non-metallic,
non-reective tripod for use at both indoor and
outdoor EMC test sites.
• 7-TR Tripod—Constructed of PVC and
berglass components, providing increased
stability for physically large antennas. The
unique design allows for quick assembly,
disassembly, and convenient storage. Allows
several di󰀨erent congurations, including
options for manual or pneumatic polarization.
Quick height adjustment and locking wheels
provide ease of use during testing. Maximum
height is 2.17 m (85.8 in), with a minimum
height of 0.8 m (31.8 in). This tripod can
support a 13.5 kg (30 lb) load.
ETS-Lindgren Product Information Bulletin
See the ETS-Lindgren Product Information Bulletin included with your shipment for the
following:
• Safety, regulatory, and other product marking information
• Steps to receive your shipment
• Steps to return a component for service
• ETS-Lindgren calibration service
• ETS-Lindgren contact information
WARRANTY
Only qualied personnel
should operate (or service)
this equipment. If you have
any questions concerning
maintenance, contact
ETS-Lindgren Technical
Support. Warranty may
be voided if housing is
opened.
ETS-Lindgren may
substitute a similar part
or new part number with
the same functionality for
another part/part number.
Contact ETS-Lindgren
for questions about part
numbers and ordering
parts.

8
Maintenance
Replacement and Optional Parts
The following are the part numbers for ordering replacement or optional parts for the
3142E.
Part Description Part Number
Polarizing Mounting Adapter 100989
Thread Insert 105861
Service Procedures
Contacting ETS-Lindgren
Please see www.ets-lindgren.com for a list of ETS-Lindgren o󰀩ces, including phone and
email contact information.
Sending a Component for Service
For the steps to return a system or system component to ETS-Lindgren for service, see
the Product Information Bulletin included with your shipment.
Calibration Services and Annual Calibration
See the Product Information Bulletin included with your shipment for information on
ETS-Lindgren calibration services.
WARRANTY
Only qualied personnel
should operate (or service)
this equipment. If you have
any questions concerning
maintenance, contact
ETS-Lindgren Technical
Support. Warranty may
be voided if housing is
opened.
ETS-Lindgren may
substitute a similar part
or new part number with
the same functionality for
another part/part number.
Contact ETS-Lindgren
for questions about part
numbers and ordering
parts.
Before performing any
maintenance, follow the
safety information in the
ETS-Lindgren Product
Information Bulletin
included with your
shipment.
Maintenance of the
Model 3142E is limited to
external components such
as cables or connectors.

98
Specications
ElectricalSpecications
Frequency Range: 30 MHz–6 GHz
Input Impedance (Nominal): 50 Ω
VSWR (Average): 2:1 above 50 MHz
Maximum Continuous Power Continuous Peak
30 MHz-60 MHz: 500 W 800 W
60 MHz-600 MHz: 1 kW 1.5 kW
600 MHz-1 GHz: 500 W 800 W
1 GHz-6 GHz: 200 W 300 W
Peak Power: 1.3 kW
Pattern Type: Directional
Polarization: Linear
Connector: Type N female
PhysicalSpecications
Height (Overall): 76.2 cm (30 in)
Length: 139.16 cm (54.79 in)
Width: 133.75 cm (52.66 in)
Weight: 5.7 kg (12.5 lb)
WARRANTY
Only qualied personnel
should operate (or service)
this equipment. If you have
any questions concerning
maintenance, contact
ETS-Lindgren Technical
Support. Warranty may
be voided if housing is
opened.

10
Assembly
The Model 3142E BiConiLog™ Antenna is comprised of the following parts:
• Antenna
• Bowtie elements (2)
• 10–32 thumbscrew knobs to attach bowtie elements (2)
• Mounting bracket and mounting knob
Attach Bowtie Elements
The Model 3142E ships with the bowtie elements detached.
Model 3142E Overall Assembly
WARRANTY
Only qualied personnel
should operate (or service)
this equipment. If you have
any questions concerning
maintenance, contact
ETS-Lindgren Technical
Support. Warranty may
be voided if housing is
opened.
ETS-Lindgren may
substitute a similar part
or new part number with
the same functionality for
another part/part number.
Contact ETS-Lindgren
for questions about part
numbers and ordering
parts.
Photos of bowtie elements
used in this section may
di󰀨er from the bowtie
elements for your Model
3142E; the assembly
procedure is the same for
both.
Before connecting any
components, follow the
safety information in the
ETS-Lindgren Product
Information Bulletin
included with your
shipment.

1110
To attach the bowtie elements:
1. For stability, mount the Model 3142E onto a tripod or tower. See Mounting for the
steps to mount the antenna.
PN 117902, circled below, must be used in order
for the knobs to be correctly tightened, and for the
bowtie elements to be secure. Spacer PN 117902 shown
on knob PN 890673
Top-down view of knob
with spacer on assembly
PN 117902 shown unattached
from PN 890673
Do not cross thread this
connection or permanent
damage to the bowtie
element could occur.
2. Slide the narrow end of one of the bowtie elements into the receptacle hole on the
antenna balun, and then align the bowtie with the receptacle on the balun.
3. Insert one of the 10–32 thumbscrew knobs into the opposite side of the balun
from where you inserted the bowtie. Ensure that the spacer is on the knob. Slowly
tighten the knob, taking care not to cross thread the connection.
4. Repeat steps 2 and 3 for the second bowtie element.
Photos of bowtie elements
used in this section may
di󰀨er from the bowtie
elements for your Model
3142E; the assembly
procedure is the same for
both.

12
Mounting
Contact with any metal or non-metallic structure can capacitively load the antenna, which
may cause unrepeatable results. Therefore, make sure that no part of the dipole elements
or bowties is in contact with the tripod or tower, particularly in vertically-polarized tests.
Where possible, run the feed cable straight one meter or more back from the Model 3142E
BiConiLog™ Antenna before dropping vertically.
Using Included Mounting Adapters
In addition to the attached mounting bracket and mounting knobs, the Model 3142E ships
with these mounting adapters:
Before connecting any
components, follow the
safety information in the
ETS-Lindgren Product
Information Bulletin
included with your
shipment.
The Model 3142E
antenna is a precision
measurement device.
Handle with care.
1. 100989 Polarizing Mounting Adapter with
7/8–14 thread receptacle
• If you need to convert the polarizing adapter
to a 1/4–20 receptacle, insert the 1/4–20
thread insert into the polarizing adapter
2. 105861 1/4–20 Thread Insert

1312
To attach the included adapters to the Model 3142E:
Model 3142E mounted onto 4-TR
using included 100989 Polarizing
Mounting Adapter and 105861
1/4–20 Thread Insert
Photos of bowtie elements
used in this section may
di󰀨er from the bowtie
elements for your Model
3142E; the assembly
procedure is the same for
both.
Do not cross thread this
connection or permanent
damage to the bowtie
element could occur.
Do not use the stinger to
mount the Model 3142E
onto a 4-TR tripod.
This pairing can cause
equipment damage.
1. If required, insert the 1/4–20 thread insert into the mounting adapter.
2. Remove the mounting knob from the mounting bracket on the antenna.
3. Slide the mounting bracket onto the mounting adapter with the adapter placed between
the shoulders of the mounting bracket.
4. Thread the mounting knob through the mounting bracket, then through the mounting
adapter, and nally through the hex nut.
5. Tighten the mounting knob to secure the antenna.
6. Attach the mounting adapter and antenna to tripod or tower, as required.
Using the Stinger to Mount to a Model 2175 MiniMast
The stinger mount provides on-axis rotation during 90° horizontal or vertical polarization.
The stinger enables you to mount the antenna directly to an ETS-Lindgren 7-TR Tripod or
mast.
Before you begin
• Install the center rotate boom (part# 108507) for rear-mount stinger-type antennas.
• Attach the included mounting adapter to the Model 3142E as instructed in Using
Included Mounting Adapters.
• You will need one of the optional mounting knobs described in 7-TR and Mast
Mounting Options. To order optional mounting hardware, contact the ETS-Lindgren
Sales Department.

14
Photos of bowtie elements
used in this section may
di󰀨er from the bowtie
elements for your Model
3142E; the assembly
procedure is the same for
both.
Before connecting any
components, follow the
safety information in the
ETS-Lindgren Product
Information Bulletin
included with your
shipment.
The Model 3142E
antenna is a precision
measurement device.
Handle with care.
1. Thread the antenna feed or receiving
cable through the center of the boom so
that the antenna connector emerges a few
inches out of the clamp end of the boom.
3. Slide the cable and stinger into the clamp
on the boom, carefully guiding the cable
out the other end.
5. Tighten the clamp knobs on the boom to
secure the antenna into place.
2. Attach the cable to the Type N connector
at the end of the stinger.
4. When you reach the back of the balun
box, align it with the boom receptacle,
and then slide the smaller portion of the
balun box into the boom. This will prevent
rotation of the antenna unless the boom is
being polarized.

1514
Mast refers to 2070 Series,
2075, and 2175 Antenna
Towers.
The Model 3142E
antenna is a precision
measurement device.
Handle with care.
Before connecting any
components, follow the
safety information in the
ETS-Lindgren Product
Information Bulletin
included with your
shipment.
Additional Mounting Options
7-TR and Mast Mounting Options
The stinger on the Model 3142E enables you to mount to antenna directly to
an ETS-Lindgren 7-TR Tripod Positioner.
Following are additional options for mounting
the Model 3142E onto an ETS-Lindgren 7-TR
Tripod Positioner.
Contact the ETS-Lindgren Sales Department
for information on ordering optional mounting
hardware.
7-TR refers to these booms:
• 109042 boom—Straight boom; for general
antenna mounting on a 7-TR
• 108983 boom—O󰀨set boom; for general antenna mounting on a 7-TR with
pneumatic or manual polarization; can also be used to mount stinger-type antennas
• 118947 – for stinger-type antennas only
Non-stinger method to mount
Model 3142E to 7-TR

16
2X2 Boom Mounting Options
Following are additional options for mounting the Model 3142E onto a 2x2 boom.
Contact the ETS-Lindgren Sales Department for information on ordering optional
mounting hardware.
2x2 boom refers to a
typical 2-inch by 2-inch
boom.

1716
Typical Data
Distance for the ANSI 3-meter and 10-meter calibrations is measured from the antenna midpoint, and for SAE
1-meter calibrations the distance is measured from the antenna tip. Midpoint is dened as half the distance between
the small elements and the bowties, which is about 45 cm from the small end tip.
Typical Antenna Factor and Gain

18
Typical VSWR
Typical Half Power Beamwidth

1918
Typical Radiation Patterns
30MHz-50MHz
70MHz-90MHz

20
100 MHz-200MHz
300MHz-400MHz