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Topband: Re: Analog to Digital converter for 1.8MHz

To: topband@contesting.com
Subject: Topband: Re: Analog to Digital converter for 1.8MHz
From: "Lawrence Stoskopf" <stoskopf@tri.net>
Date: Fri, 02 Jul 2004 16:12:24 GMT
List-post: <mailto:topband@contesting.com>
This is covered on the various SDR forums, but 160 is a really special case. Switching times as well as sampling times are octaves less critical than, say 10M. Dynamic range is more critical in most cases. Ringing of filters from noise impulses seems to be more of a factor in favor of FIR filters rather than crystal filters of marginal or Cheby design. I personally think that the TenTec approach of filters prior to sampling will end up more robust, but processor power allowing spectral analysis of the whole band at one time could be done digitally.

Trade-offs..... Should be interesting once again.

N0UU
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