Radiated Field Calculator
Convert receiver readings to field strength using antenna factor, cable loss, and system impedance.
Use this when: You have a receiver reading and antenna factor and need field strength in dBµV/m or V/m.
From receiver reading to field strength
A radiated EMC result is not the number on the receiver. You add antenna factor (dB/m) and cable loss, and you start from the right incoming unit (dBµV or dBm). This calculator is the workflow for that: receiver + AF + cable → dBµV/m or V/m.
Preset antenna factors are for estimates. Compliance work uses the calibrated AF from the antenna’s last calibration certificate at the exact frequency.
Frequently asked questions
Quick answers about using this calculator
What is antenna factor (AF)?
How does system impedance affect radiated calculations?
Should I use preset antenna factors?
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