Hi Stefan,

You wrote:

> ... You said i can receive VTX India @17 kHz.
> This is one transmitter that is very weak but visible anyway. The
> distance to me is 7795km. Very interesting: Type this in Google Earth:
> "08.387015, 077.752762" and you can see the towers of the transmitter...

Yes, impressive. I saw pictures in India some months ago.

Watch that signal right on 24kHz. That's NAA from North America.

> Peter (or others), do you know a USB soundcard, that is able to run at
> 96000 ksamples/s? There are a lot of USB soundcards that cost not even 5
> EUR and do a very good job (currently i am using such one) but most of
> them have a filter for 48000 it seems...

Myself I'm using M-Audio Audiophile 192 only, running at 192ks round the
clock since >4 years on Linux. The best you can buy below 150 Euro for
non-M$ systems. It's not an USB-card. All from Creative I checked were
unusable above 25-30kHz. But that's a 4 years old experience.

Unfortunately I just gave away a very fine USB-card, EMU 0202, since it
does not work on LINUX/UNIX. If you are using M$-systems only I can
recommend it. Low noise, no power supply needed and up to 192k of sample
rate. May be the drivers could be improved. Many professionals in VLF
research are using the M-Audio Delta 44.

I'm dreaming of a Lynx2-C with six inputs at 200ks and an input for
external reference frequency. But >1000 Euro is too much for my
"Bastelkasse" (°.°)

Beste Gruesse aus Kiel,
Peter