Message-ID: <393E8426.A9A388AA@usa.net>
Date: Wed, 07 Jun 2000 19:19:34 +0200
From: "Alberto di Bene" <dibene@usa.net>
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To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: a really weak signal in Canada....
References: <006a01bfd01f$e2380930$0a00a8c0@server1.ThreeLakes.ca>
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Larry Kayser wrote:

>
> >Modern sound cards have superb A/D converters,
> >so why not use them ?
>
> Computer sound cards did not exist when Bill started his work, since they
> were not available they were not used.  Having been around A/D converters
> for many years, the superlative of "superb A/D converters" seems to have a
> degree of hyperbole from my perspective.
>

'Superb' in this context refers of course to the adequateness (sp?) to the task.
Having 16 bits of resolutions, and, for the best cards, a noise floor approaching
-90 dB, seems to be much more than adequate for whatever radio-received
audio-range signals one could need to process. For hi-fi applications, this doesn't
hold any more, of course.

>
> In the interim he has done DSP work that is superb for weak signal work and
> has been demonstrated to perform excellently.
>

Yes, his work is excellent, and if/when he will port it to a sound card, it will surely be
a winner also in terms of number of users.

73
Alberto    I2PHD