A.H. Systems has been established since 1974 and manufactures a complete line of affordable, reliable, EMI test equipment. Our individually calibrated EMI Test Antennas, Preamplifiers, Current Probes and Low-Loss Cables satisfy many test standards including CISPR, MIL-STD, FCC, EN, VDE, IEC and SAE. With a wide variety of mounting configurations, we can also offer tripods and accessories that compliment other EMI testing equipment used to complete your testing requirements. We are also committed to providing all of our clients with no cost prompt and professional technical support. Manufacturing high quality products at competitive prices with immediate shipment plus prompt technical support are our goals to improve the quality of your testing requirements.

A.H. Systems, Inc.
9710 Cozycroft Ave.
Chatsworth, CA 91311
(818) 998-0223

Practical Overview of Antenna Parameters

Understanding key antenna parameters is essential for selecting and using antennas in virtually all applications. There are a variety of standardized methods for describing antenna parameters, and this article aims to provide an overview of key antenna parameters and relevant background.

The Best Frequency Range and Performance in One Case

You won’t compromise on performance with the AK-40G antenna kit thanks to the six antennas, two current probes, and a partridge in a… well actually there aren’t any birds, but the case has extra cutouts for optional preamplifiers and room for additional cables and adapters.

Reliable and Dependable Biconical Antennas 20 MHz to 18 GHz

A.H. Systems’ Biconical Antennas operate efficiently over the frequency range of 20 MHz to 18 GHz. Suitable for FCC, MIL-STD, VDE, TEMPEST, and immunity testing.

Double Ridge Guide Horn Antennas

These are popular horn antennas that operate as low as 170 MHz up to 40 GHz. We offer three different antenna series for different test applications (Broadband, Standard Gain, and Octave Horn Antennas).

Now in the EERC

Free resource, compliments of A.H. Systems

Frequency and Wavelength Calculation

This frequency to wavelength calculator is especially useful for the calculation of the element length of the dipole antennas. Many of our dipole antennas have adjustable element lengths and by entering the frequency of interest this calculator will calculate the wavelength (or element length) corresponding to the required frequency. You can also enter in the wavelength and this calculator will calculate the corresponding frequency.