I really appreciate the compliment, and will do my best to try and
deserve it.

Please look very carefully at the diagram at the URL you've posted, and
notice that it's a voltage waveform (see the labeling of the vertical
axis). Then read the text very carefully. Neither the diagram nor the
text contradict what I've said. If you think it does, post the reason
why, and I'll try to clear it up.

Roy Lewallen, W7EL

Paul Burridge wrote:

On Tue, 19 Oct 2004 06:32:55 -0700, Bill Turner
wrote:


Well. The answer you gave is exactly the answer I would have given, but
you say my answer is wrong.

I understand about deriving the RMS power from the instantaneous power
in the same way that RMS voltage or current is derived, I just don't
accept the definition. It's been taught the other way all my life, even
though you say it's incorrect. I see your point, I just don't accept
it.


I agree. On the one had we've had a pillar we'd always accepted
knocked away by Roy; on the other hand, it was Roy who knocked it
away. Had it been anyone else I'd have dismissed them as a nutter.


I will QRT for now, but thanks for taking the time to explain. I mean
that sincerely and I do respect your point of view.


As I'm sure we all do. If this is a misconception it must be an
extremely widespread one. I've found a reference to RMS power and how
it's calculated in 'Practical Radio Frequency Test & Measurement'
(Newnes) and have posted the relevant page he

http://www.burridge8333.fsbusiness.co.uk/cvcvcv.gif

If we are wrong, it appears we're not alone...