Featured Downloads

  1. 4 Reasons To Get A Bilogical Antenna First For Device Testing
    4/1/2019

    As more products use electronics and wireless, a bilogical antenna is the best first investment for internal RF testing.

  2. A.H. Systems Product Catalog
    3/21/2019

    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.

  3. Make Smart Use Of Preamps In RF Testing
    9/27/2018

    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.

  4. Antenna Selection By Test Type Catalog
    8/29/2018

    Are you ready to find the antenna that fits your testing needs? This A.H. Systems catalog simplifies antenna selection by categorizing some affordable and reliable EMI antenna options by test type.

  5. Antenna Factor Concepts
    4/17/2018

    An antenna factor (AF) is the comparison between the field level presented to the antenna and the actual voltage produced by the antenna at its connector. This white paper explains the process of creating AF data and how to use it.

  6. Shielding Effectiveness Test Guide
    4/17/2018

    Many products incorporate electronics and wireless communications and need RF interference testing. This requires shielding enclosures that need proper testing to ensure their correct operation.

  7. How To Perform A Radiated Emissions Measurement
    4/10/2017

    This article by A.H. Systems presents a step-by-step process of measuring the ambient field strength values for a radiated emissions measurement.

  8. Basic Bulk Current Injection Testing
    1/24/2017

    Bulk current injection (BCI) testing is a conducted susceptibility procedure that uses an injection current probe. This paper provides an example of BCI testing, covering all steps, including gathering the required equipment, pre-calibration procedures, injection testing procedures, and safety precautions.

  9. Understanding Antenna Factors
    9/12/2016

    This white paper presents a brief introduction on the antenna factor, how to create AF data, and how to use AF data.

  10. VSWR vs. Returned Power Cheat Sheet
    9/12/2016

    This paper offers a cheat sheet to help understand the correlation of VSWR to the percentage of reflected power that will return.