On Thu, 01 Mar 2007 19:21:43 GMT, Owen Duffy wrote:

If you are asserting that VSWR on a real or even theoretical line varies
sinudoidally with displacement, it is time to go back to basics. You need
some time with a reputable text book.

Hi Owen,

Under the right circumstances (and they have been presumed in some
discussion here), then the power terms (as expressed by a power meter
inserted into the line) will vary sinusoidally with displacement, even
if the SWR does not.

73's
Richard Clark, KB7QHC