Tuesday, October 6, 2015

Power Meter Lies

 Have an old SWR/Power Meter... sometimes it seems to read correctly and sometimes not.  There seems to be around a 3-5 db swing depending on the frequency.  To test my theory I checked the power meter against the old 141T Spec An and found less then a db of change vs the suspected 3 or so db's.   I think I need a better way of measuring power.

The spec an is 10 db /div ... its old but functional.   As I tune across the 20m band the power meter is all over the place but the spec an varies less then a db.


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