Post by jimworth on Apr 15, 2010 12:17:28 GMT -5
I have been experimenting with the Rotate Smith Chart and Theta Rotation functions for Markers. It appears that entering positive values (e.g. +45 degrees to indicate a feedline length change of 1/8 wavelength) represents a shortening of the feedline. That is, the marker moves counter-clockwise along the SWR circle on the Smith Chart. This can also be viewed as rotating the Smith Chart clockwise while the Marker remains in place. So, to simulate lengthening the feedline by 1/8 wavelength, I need to enter -45. Is that correct?