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Old January 3rd 06, 07:06 AM posted to rec.radio.amateur.antenna
Richard Clark
 
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Default using an HP 8405A to measure SWR ?

On Tue, 03 Jan 2006 06:42:53 GMT, Owen Duffy wrote:

(The phase angle and reflected ware very touchy. It was almost impossible to
adjust by changing frequency. It was easier to 'adjust' it by sitting very still
and moving my arm.)


...Does that
explain some of the phase sensitivity?


Hi Owen,

Being very touchy, especially to the specifics of sitting very still,
sounds like classic common mode problems.

73's
Richard Clark, KB7QHC