Calibration of Thermal Transfer Standards of RF Voltage

A system of RF voltage calibration in the VHF and UHF ranges is described. The primary voltage standard is a calorimetric power meter whose impedance is determined accurately. The working standards are thermal transfer instruments (thermal converters and micropotentiometers). The methods used to calibrate the working standards against the primary standard are described in detail. Then the calibration of transfer standards submitted by other laboratories is outlined, and procedures and practices which have been found successful are recommended for use by standardizing laboratories.