Tuned Dipole Antenna FCC-3

  • Adjustable Dipole Antenna Adjustable Dipole Antenna
  • Frequency Tuned Dipole Antenna Frequency Tuned Dipole Antenna


Designed per the FCC specitications, this Tuned Dipole antenna is ideal for site attenuation measurements.


  • 170 MHz to 340 MHz
  • Individually Calibrated
  • FCC or VDE site attenuation
  • Rugged Construction
  • Low Loss, Low VSWR

CAGE Code: 54656
NSN: 5985-01-598-9570
Schedule B: 8529.10.9000

Product Details

Our FCC-3 dipole antenna provides an accurate standard for precise EMI and site attenuation measurements (per OET-55 and ANSI C63.5). The FCC-3 is manufactured per the FCC balun design and individually calibrated. This dipole antenna consists of a matching balun, two telescoping elements, balun clamp for mounting, and a tape measure to adjust the element lengths.

The antenna balun is constructed per the W. K. Roberts design as specified in the ANSI C63.5 standard and consists of a folded balun that converts the 70-ohm (at resonance) to 50-ohm impedance. This balun design exhibits a low VSWR, low balun loss and can handle power up to 90 watts.

The FCC-3 tuned dipole antenna has two quarter wavelength elements for a total of λ/2 and must be adjusted to the desired frequency. The theoretical element length is (300/FMHz /2), however we provide slightly different lengths that are tuned to the maximum Return loss. The calibration tables provide a list of the frequency points and the optimized element length.

Included parts:
  • FCC-3 Antenna Balun
  • 2 removeable telescoping elements
  • ABC-TD, Balun Clamp with 1/4-20 thread
  • Tape measure, Inch/Metric
  • Antenna Calibration Manual

Antenna Specifications

FCC-3 Tuned Dipole Antenna

Frequency Range: 170 MHz - 340 MHz
Antenna Factor: 13 to 19 dB/m
Gain: 1 to 2 dBi
Balun Loss: <0.5 dB
Maximum Continuous Power: 90 Watts
Impedance: 50 ohm
VSWR: 1.3:1
Connector: N-Type, Female
Physical Dimensions
Length: 12.5 in.
Weight: 0.5 lb.'s
Supplied Accessories
One balun mounting clamp with 1/4-20 threads
Two Telescoping Elements
One Tape Measure

Typical Antenna Data

FCC-3 Tuned Dipole Antenna

Additional Resources

FCC-3 Tuned Dipole Antenna

Product Datasheet

Tuned Element Lengths

Frequency to Wavelength Calculator

Shielding Effectivness Test Guide

Shipping Information:
Carton size: 13" x 13" x 5"
Shipping Weight: 3 lbs.
* These are approximate dimensions and will vary depending on other items ordered.

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