Passive Horn Antennas (AH and SGH series)

The AH and SGH series Horn antennas can be used for emissions and immunity testing.These antennas are constructed using light weight aluminum with a corrosion resistant conductive coating.

Each antenna is individually calibrated at 3 meters. The calibration data and certificate will be shipped with each antenna.This antenna is suitable for ANSI 63.4, CISPR16, EN 55022, FAA and other EMC standards that require emissions and immunity testing.

The high gain reduces input power requirements to generate high electromagnetic field levels for immunity testing. High gain also increases antenna sensitivity to low level signals.

Active Horn Antennas ( AHA series)

The active horn antennas have a built preamplifier. Obtaining valid data during the test, it is imperative to maintain signal level above the noise floor. In a typical setup, a receiving antenna is connected to a preamplifier that is located next the spectrum analyzer. The output of the preamplifier is then fed to the spectrum analyzer. In this arrangement, since the location of the preamplifier is far from the antenna, the interconnecting cable is long. A combination of factors such as a long cable, increasing cable loss (especially for frequencies above 1 GHz), and high antenna factors reduce the signal level to below the noise floor of the preamplifier; and that produces invalid readings. Boosting the signal at the antenna, prior to its attenuation by long cables keeps it from falling below the noise floor.