The A.H. Systems set of H-Field rods provide an accurate standard for magnetic field testing. For those situations when improved sensitivity is desired in magnetic field testing, the H-Field rod is an effective alternative to traditional loop antennas. One matching preamplifier with a 1/4-20 mount, covers the entire frequency range and can be used with any or all of the H-Field Rod Antennas.

An H-field rod antenna element is composed of a ferrite rod with a coil around the ferrite and a matching unit (AK-HFR). 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.

* Calibration data and certificate included