The currently published standard ANSI C63.5-2004 is clarified by providing minor revisions to Clause 5.1 and Figure G2.
ANSI C63.5-2017 history
1970ANSI C63.5-2017 Electromagnetic Compatibility - Radiated Emission Measurements in Electromagnetic Interference (EMI) Control - Calibration of Antennas (9 kHz to 40GHz)
2006ANSI C63.5-2006 Electromagnetic Compatibility - Radiated Emission Measurements in Electromagnetic Interference (EMI) Control - Calibration of Antennas (9 kHz to 40GHz)
2004ANSI C63.5-2004 American National Standard for Electromagnetic Compatibility Radiated Emission Measurements in Electromagnetic Interference (EMI) Control Calibration of Antennas (9 kHz to 40 GHz)
1998ANSI C63.5-1998 American National Standard for Calibration of Antennas Used for Radiated Emission Measurements in Electromagnetic Interference (EMI) Control Calibration of Antennas (9 kHz to 40 GHz)
1988ANSI C63.5-1988 American National Standard for Calibration of Antennas Used for Radiated Emission Measurements in Electromagnetic Interference (EMI) Control (ANSI C63.5-1988)