I use minimum gain in the op amps after the detector to get maximum dynamic
range.
BTW Sound card codec is an A/D. frank
"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
Alberto:
Over at the very controversial group softrock40 group. I suggested once that
they could add analog to digital convertors right after the quadrature detector
and so they seemed to have took off on that idea for awhile. It seems like it
was an idea some of them had also been previously pondering: I do not know.
Anyways it seems like a logical evolution of the circuit ideas.
I terms of software now. Would there be an advantage in using the A/D right
after the detector in your view and could the signal still be sent through the
sound card? I realize that this would one day mean a new kind of software. If
it is not immediately advantagous to explore then we can just dismiss that idea
till some other date.
Anyways if the A/D idea is not something ready for SDR at this time then we
need to focus on the analog output of the quadrature detector as it is and go
from there. {Some are still fussing over what sort of technology to use as the
local oscillator and bandpass tuner sections.} Yet some have looked at the idea
now and so it will not be something new one day down the road. It seems however
that some very fast digital radio communications could result from the idea.
Yet, as with anything no doubt it will have its peculiar problems also.
ka9rza
__________________________________________________________
Call Anyone, Anytime, Anywhere in the World - FREE!
Free Internet calling from NetZero Voice
Visit http://www.netzerovoice.com today!
[Non-text portions of this message have been removed]
------------------------ Yahoo! Groups Sponsor --------------------~-->
Everything you need is one click away. Make Yahoo! your home page now.
http://us.click.yahoo.com/AHchtC/4FxNAA/yQLSAA/ELTolB/TM
--------------------------------------------------------------------~->
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/soft_radio/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
