Key Product Information


The model 3181 as designed to have the lowest possible VSWR across its range of operation. The antenna exhibits better than 2:1 VSWR for most of its range, and never exceeds 4:1 above 1 GHz.

Radiation Pattern

The radiation pattern of the model 3181 is omnidirectional in the H-plane. This means the antenna can receive signals from every direction around its axis.

Spectrum Monitoring

The model 3181 can be used for EM Field surveying and spectrum monitoring. Its low weight design allows for use as a surveying tool, when connected to a portable spectrum analyzer. Optional weatherproofing is available for long term monitoring outdoors.​ 

Specifications Select a tab below for more information

Frequency Minimum: 500 MHz 
Frequency Maximum: 18 GHz 
Connectors: SMA (F) 
Impedance (Nominal): 50 Ω 
Maximum Continuous Power: 
  • 200 watts @ 500 MHz
  • 25 watts @ 18 GHz
VSWR Ratio (Average): <2:1
Pattern Type: Omnidirectional
Polarization: Linear
Length: 36.2 cm (14.25 in) 
Width: 15.25 cm (6.00 in) 
Stinger Length: 17.8 cm (7.01 in)
  • Model 3181 Antenna
  • Weather-proofing
  • Mounting Adapter for Tripod Mounting
  • Individually calibrated at 1 m per SAE ARP 958 at our A2LA accredited lab. 3 m calibration per ANSI C63.5 available at additional cost. Actual antenna factors and a signed Certificate of Calibration Conformance included with manual.
  • Manual
  • Carrying Cases
  • ETS-Lindgren Offers Several Non-metallic, Non-reflective Tripods 



3180C Broadband Mini-Bicon Antenna ​​​​​ETS-Lindgren's Model 3180C Broadband Mini-Bicon Antenna has been designed for optimal performance across the frequency range of 30 MHz to 1 GHz (cage elements) and 30 MHz to 3 GHz (cone elements).
3181 Broadband Mini-Bicon Antenna <p>ETS-Lindgren's Model 3181 Broadband Mini-Bicon Antenna is a broadband omnidirectional antenna<span aria-hidden="true"></span> with a radiation pattern that conforms to the CISPR-16 specifications.</p>
3183 Broadband Mini-Bicon Antenna ETS-Lindgren's Model 3183 Broadband Mini-Bicon Antenna was designed for CISPR 16 chamber characterization.
3184 Broadband Mini-Bicon Antenna ETS-Lindgren's Model 3184 Broadband Mini-Bicon Antenna is a radome-protected, broadband antenna.

Key Features

  • 500 MHz to 18 GHz Frequency Range (The antenna is recommended for the 500 MHz to 9 GHz range but data is supplied up to 18 GHz where it can be used for spectrum monitoring.) 
  • Ideal for:
    • Chamber Characterization
    • Broadband Spectrum Monitoring 
  • Omnidirectional Pattern Conforms with CISPR-16

Literature and Videos<a href="/sites/etsauthor/ProductBrochures/General%20Brochures/Test_and_Measurement_Full_Line.pdf"><img alt="" src="/_layouts/15/IMAGES/icpdf.png" />Test_and_Measurement_Full_Line.pdf</a>

L o a d i n g

 Catalog-Item Reuse