Thread: The ARRL Letter, Vol 27, No 13 (Friday, April 4, 2008)
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Old April 5th 08, 03:14 PM posted to rec.radio.amateur.moderated
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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Default The ARRL Letter, Vol 27, No 13 (Friday, April 4, 2008)
ARRL Letter Mailing List wrote:
Rapp's remarkable contributions
spanned a period of more than three decades (1941-1962, 1972),

I remember an article, probably April '55, where
Rapp described a method of "amplitude discrimination".
If one used such a method, one could simply tune
in the weak signal by tuning out the strong ones.
Such amplitude discrimination required "back to
back limiters". When I asked my Elmer, W5OLV, how
to build a "back to back limiter", he couldn't stop
laughing.
--
73, Cecil http://www.w5dxp.com

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