jack ha scritto:

WB9LVI's "LMS" was described in QEX -- ultra simple -- just your sound card
and an opamp or so:
http://www.arrl.org/qex/2005/Steber.pdf there is a link to the exe file in
the PDF.

I've check the QEX article but I've found that the minimum C or L range
is very hight for my needs

Thanks Paolo Iw3arv