A.H. Systems, inc. manufacturer of antennas for compliance testing


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.


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 antennas

Featured Resources


Antenna BeamwidthAntenna Beamwidth in RF Testing
Field Intensity CalculationField Intensity Calculation
PAM-0118P PreamplifierMake Smart Use Of Preamps In RF Testing

Typical EMC FormulasTypical EMC Related Formulas
dBm to Volts to Watts ConversionAntenna Gain, Beamwidth, And Directivity
shielding effectiveness testingShielding Effectiveness Test Guide
dBm to Volts to Watts ConversiondBm/Volts/Watts Conversion
Biconical Antenna SelectionBiconical Antenna Selection
VSWR ExplainedVSWR Explained

Need more information?

Have a question? Call us or send us an Email and we will answer your question. Not only have we been in business for over 50 years, but also have worldwide representatives in over 21 different countries. Need test equipment in Asia, Europe, or the Middle East? With A.H. Systems, it's never a problem. We are here to assist you with your EMC/EMI test antenna requirements.


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