H-Field Rod Antenna HFR-3

  • H-Field Rod Antenna


For applications where high sensitivity is required, A.H. Systems set of H-Field Rods provides an accurate standard for magnetic field testing.


  • 1 MHz to 10 MHz
  • Individually Calibrated
  • High Sensitivity Magnetic Field Testing
  • Three Year Warranty

CAGE Code: 54656
NSN: 5985-01-546-0599
Schedule B: 8529.10.9000

Product Details

An H-Field Rod Antenna is composed of a ferrite rod with a coil around the ferrite and a matching unit (EHA-50B). The benefit of this type of antenna is its compact size and convenience for portable applications. The ferrite material "concentrates" the magnetic component of the RF signal into the coil allowing the physically small antenna to have a larger effective area. In other words, the ferrite rod antenna has a much greater level of sensitivity than if the coil had been used on its own.

This antenna element is shielded from the electric field and is only responsive to the magnetic component making this type of antenna directional. It receives the magnetic component of the RF signal at a right angle to the direction of the RF signal and has deep nulls when the antenna is in line with the direction of the signal.

The HRF-3 Antenna operates efficiently over the frequency range of 1 MHz to 10 MHz. It is suitable for MIL-STD, VDE, and TEMPEST testing, with reliable, repeatable measurements.

Antenna Specifications

HFR-3 H-Field Rod Antenna
Frequency Range: 1 MHz - 10 MHz
Impedance: 50 ohm
Connector: N, male
Physical Dimensions:
Dimensions: 2.3" Dia. x 15.6"
Weight with amplifier: 4-1/2 lb's

Typical Antenna Data

HFR-3 H-Field Rod Antenna

Additional Resources

HFR-3 H-Field Rod Antenna

Shipping Information:
Carton size: 19" x 19" x 9"
Shipping Weight: 3 lbs.
* These are approximate dimensions and will vary depending on other items ordered.

Recommended Accessories

HFR-3 H-Field Rod Antenna
Amplifier, Battery Power

EHA-50B - Amplifier, Battery Power


3 Meter BNC/BNC Cable

SAC-210 - 3 Meter BNC/BNC Cable

Our Standard RF cables are assembled to meet the needs of any Test lab.