Drone Measurements Validate the Accuracy of Simulation for FM Pattern Verification
Originally Aired - Saturday, April 13 | 1:30 PM - 1:50 PM PT
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In 2021, Dielectric proposed a rule change to the FCC for FM antenna directional pattern studies to be created using simulation software. After a PRM and NPRM was issued by the FCC, the rule change went into effect and is now permissible. In this paper Dielectric and Sixarms will demonstrate the technology of solving Maxwell equations in simulation software and comparing simulation to the measured pattern utilizing a drone-based integrated FM pattern measurement system. Dielectric has proven the accuracy of the drone study in correlation to the HFSS simulation software with hundreds of drone studies at the UHF and VHF TV frequencies. Sixarms will delve into how to measure antenna patterns in detail which Dielectric will use for analysis against the simulations. In addition to the measurement techniques, Sixarms will introduce the use of tower imaging technologies used to obtain more accurate tower information which ultimately lead to improved correlation of the HFSS results. Dielectric will demonstrate how a full model in HFSS with the radiated patterns compare to the results measured by Sixarms. The paper will showcase the proven results of the HFSS simulations and the ability for broadcasters to measure FM antenna patterns efficiently and accurately post installation to validate they are producing results consistent with the simulated patterns supplied by the antenna Manufacturer.
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