Key Product Information


​​FCC Design 

ETS-Lindgren has incorporated contemporary materials, precision manufacturing and select improvements (such as Type N connectors for balun and cable connections) to the optimally matched, compensated balun design used by Willmar K. Roberts at the FCC laboratory. The result is a quality product that provides years of use.

Low VSWR and Balun Loss 

The model 3121D has an average VSWR of less than 1.6:1 and a balun loss of less than .5 dB throughout its frequency range of 30 MHz to 1 GHz.Appropriate for EMI Testing and Site Attenuation ETS-Lindgren's Tuned Dipole Antenna is suitable for both commercial and military EMI emissions and immunity testing. The model 3121D also can be used to perform site attenuation per EN55022 and ANSI C63.4.

Quality Construction Complete with Accessories 

ETS-Lindgren's Tuned Dipole is constructed of lightweight corrosion resistant elements, providing years of trouble-free indoor and outdoor service. A clamp block, delrin support rod, and aluminum mounting base are included in the set. The aluminum mounting base accepts standard 1/4 in x 20 threads from an ETS-Lindgren Tripod or most other tripods. All components, including a tape measure, and ruler which shows corresponding frequency, are included in a shock-resistant carrying case.

 

Specifications Select a tab below for more information



Impedance (Nominal): 50 Ω 
VSWR: <1.6:1 
Pattern Type: Omnidirectional 
Polarization: Linear

​Model
​Frequency
​Connectors
​Maximum Continuous Power
​Balun 1
​30 MHz to 60 MHz
​​Type N (f)​
​260 W
​Balun 2
​60 MHz to 140 MHz​
​​Type N (f)​
​160W
​Balun 3
​140 MHz to 400 MHz​T
​​Type N (f)​
​80 W
​Balun 4
​400 MHz to​ 1 GHz
​​Type N (f)​
​50 W



  • Two Low-frequency Adjustable Elements
  • Base Drilled to Accept ETS-Lindgren or Other Tripod Mount with Standard 1/4 in x 20 Threads
  • Two Medium Frequency Adjustable Elements
  • One (1) 5 m Tape Measure
  • Support Rod
  • 7.6 m (25 ft) Cable with Type N Connectors
  • One High Frequency Ruler for DB4
  • Four (4) Element Extension Rods
  • Carrying Case
  • Clamp Block
  • Both Stinger and EMCO Mounts Included
  • Actual Individual Calibration Factors and Signed Certificate of Conformance
  • Users Manual
  • 4-TR Tripod
  • 7-TR Tripod











 






 

 

3121D Dipole ​​​​​ETS-Lindgren's Model 3121D Tuned Dipole Antenna's behavior approaches to the theoretically perfect half-wavelength resonant dipole. 
3125 Precision Dipole Antenna ETS-Lindgren's 3125 Balanced Dipole Series is designed to match the operating frequencies of cellular phones and other wireless devices. 
3126 Precision Sleeve Dipole ​​​​​​​​ETS-Lindgren's 3126 Series of Precision Reference Sleeve Dipoles are truly omnidirectional antennas, having an electric dipole pattern approaching that of a half-wave resonant dipole,​​ with typical gains between 1.5 and 2.0 dB.
3127 Magnetic Dipole Antenna ETS-Lindgren's Series 3127 Resonant Loops are designed to meet the Cellular Telecommunication and Internet Association's (CTIA) ± 0.1 dB symmetry requirement for ripple test measurements at the labeled center frequency.

Key Features


  • ​Frequency Range 30 MHz to 1 GHz 
  • FCC Design 
  • Low VSWR and Balun Loss 
  • Individually Calibrated 
  • Appropriate for Site Attenuation Measurements
  • Both Stinger and EMCO Mounts Included

Literature and Videos


 

 

http://www.ets-lindgren.com/products/antennas/dipoles/4014/401401<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>

 

 

http://www.ets-lindgren.com/products/antennas/dipoles/4014/401401

L o a d i n g

 Catalog-Item Reuse