To: | topband@contesting.com |
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Subject: | Topband: Re: Rate of rise clipping |
From: | "Lawrence Stoskopf" <stoskopf@tri.net> |
Date: | Fri, 06 Feb 2004 16:00:16 GMT |
List-post: | <mailto:topband@contesting.com> |
If there is someone out there that can devise a circuit for receiver RF front-ends that will clip stronger signals and noise, while passing weak signals untouched, most existing modern radios could be instantly transformed into super receivers. The chips probably now exist. > 73, Doug / NX4D (nr Orlado, Fla.) Years ago in (maybe the RSGB TT?) there was an analog, discrete parts, circuit which compared a delayed input to a rate of rise input and blanked or attenuated anything that came up faster than your desired signal. Was done at the IF level as existing parts needed a higher signal level to function. Filed it away somewhere as it looked promising as something before a Cheby sharp filter. N0UU _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband |
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