Klarinet Archive - Posting 000252.txt from 2001/02

From: Tom Wood <n4cid@-----.net>
Subj: [kl] Combination tones......
Date: Thu, 8 Feb 2001 08:28:44 -0500

" ....anyway, the confusion between 'difference tone' and
'interference' is this: When two waves add (or subtract), they are
merely combining their amplitudes to create larger and smaller
amplitudes as they drift 'into phase' and then 'out of phase'. They
are not creating a new frequency component. They are only reinforcing
or cancelling existing peaks and valleys."

I wonder if this is about what we call 'inter modulation' in Ham Radio?

Main Entry: in·ter·mod·u·la·tion
Pronunciation: -"mä-j&-'lA-sh&n
Function: noun
Etymology: International Scientific Vocabulary
Date: 1931
: the production in an electrical device of
currents having
frequencies equal to the sums and differences of
frequencies
supplied to the device or of their harmonics

Tom W

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