Featured Downloads

  1. Checklist On The 10 Factors You Need To Consider When Selecting An EMC Antenna 9/12/2016

    The antenna is one of the least understood components in an EMC test instrumentation set-up, and a poor choice of antenna(s) can lead to multiple problems including erroneous test data, failed tests, lengthy or difficult test procedures, and challenges with repeatability.

  2. Antenna Terms And Definitions 2/10/2009

    A.H. Systems manufactures a complete line of affordable, reliable, individually calibrated EMC test antennas, preamplifiers, current probes and low-loss, high-frequency cables that satisfy FCC, MIL-STD, VDE, IEC, and SAE testing standards. This is a list of commonly used terms in the EMC community and their definitions.

  3. How To Perform A Radiated Emissions Measurement

    Explore the intricacies of setting up radiated emissions testing with this guide, covering everything from antenna placement and polarization to accurate frequency selection and signal measurement.

  4. A Primer On Antenna Near-Field And Far-Field For The Practical Engineer

    Antenna regions are defined as near-field and far-field. The boundary between them is determined by four common methods, which depend on use cases and acceptable error levels. 

  5. A.H. Systems Product Catalog

    A.H. Systems provides many models of portable antenna kits from 20 Hz to 40 GHz. Each kit contains all the necessary antennas, current probes, and cables. Each antenna is individually calibrated and all is contained in a rugged carrying case.

  6. Selecting Antenna/Power Amplifier Combinations

    Although somewhat dependent upon the existing test setup, there are many approaches to upgrading a test facility in readiness for the new RF immunity standard. This article provides guidelines for determining how to meet the requirement.

  7. Best Practices For Using Preamps In RF Testing

    Engineers performing RF enclosure, emissions, or field testing frequently will need to use a preamp with their receiver and associated antenna. Some best practices can improve results and avoid problems.

  8. Practical Overview Of Antenna Parameters

    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.