Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Scanning Height for ANSI C63.5 Calibrations



Kenneth H. Cavcey, Dennis G. Camell


The configuration of antennas at an Open Area Test site (OATS) for calibrations results in constructive and destructive electric fields. Regardless of the calibration method used, the antenna to be calibrated should be loacted where the field varies slowly. We derive the conditions for a slowly varying field near the location of constructive interference as a function of the height of the transmitting antenna and the field geometry. We show experimental data taken by keeping the receiving antenna fixed per the ANSI standard and scanning the transmitting antenna in height. Repeatability of antenna factor data is improved to less than 1 0.3 dB by avoiding nulls in the field.
Proceedings Title
Proc., IEEE Intl Electromagnetic Compatibility (EMC) Symposium
Conference Dates
August 24-28, 1998
Conference Location
Denver, CO, US


calibration, destructive fields, measurement technique, scanning height, standard antenna method


Cavcey, K. and Camell, D. (1998), Scanning Height for ANSI C63.5 Calibrations, Proc., IEEE Intl Electromagnetic Compatibility (EMC) Symposium, Denver, CO, US (Accessed April 22, 2024)
Created July 31, 1998, Updated October 12, 2021