Sign of the Smith Chart Times
The Smith chart is a staple for analyzing complex impedance. [W2AEW] notes that a lot of inexpensive test gear like the MFJ-259B gives you complex readings, but fails to provide the sign of the imaginary part of the complex number. That makes it difficult to plot the results on a Smith chart or carry out other analysis. As you might expect, though, he has a solution for you that you can see in the video, below.
A common method is to increase the frequency slightly. In a simple case, you’d expect the imaginary part — the reactance — to go …read more