Comments on "An improved method of measuring the power-line impedances using two current probes"

The authors of the above paper (see Kwasniok, Kozlowski, and Stuchly, ibid., vol.35, no.4, p. 473-75, 1993) state in the first sentence that the two-current-probe method was developed by Nickleson and Malack (1973) and refer to their paper. During the early 1970s while employed by Southwest Research Institute in San Antonio, TX, I was in charge of an Air Force research project to investigate methods to measure signals being transmitted via power lines. One of the results of my work on this project was the development and testing of methods to measure power-line impedances. I designed an automated system to measure power-line impedance and a set of active current probes.<>