From: sleeper75se (sleeper75se_at_yahoo.se)
Date: 2002-01-24 02:30:31
--- In buildcheapeeg_at_yahoogroups.com, "Fil Laborde" <fil_at_rezox.com> wrote:
> Guys!
>
> I've been asking around and here's the email I got from someone
> who is part of an organization dealing with ELF Antennae.
> Basically he is saying that there are many analog circuit junkies
> who use soundcards to display signals in the ELF range (although
> they are getting the signals from antennae, ie submarine
> transmissions).
>
> So my question is, then, why not pursue an option of using the
> quality electronics created here UPTO the bandpass section, and
> then feed that into a soundcard and not bother with the complexity
> of rebuilding the ADC, and parallel port communications parts. This
> may give more flexibility to future possibilities?
Hi Fil,
Well, you are welcome to try. :-) I've designed, and Joerg Hansmann
is designing, input stages, so that's already taken care of. However,
you do need some kind of analog optical isolation between that and
the PC for safety reasons.
Pesonally, I only have time for the 8-channel device I'm working on,
but I'd be happy to give you advice and feedback on such a design.
You could probably ask any analog designer for help though, it is not
a very complex problem.
Best Regards,
Andreas
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:37 BST