I own a EMU0202 and when I use it with my laptop running on battery I
can see in spectrum lab FFT the DCF77 at 77.5KHz and the GB time-code
transmitter at 60KHz easily. The antenna is 1 meter of wire. Not bad for
100 bucks. I'm around 450km from DCF77 and maybe 800km from GB transmitter.
If I connect the laptop SMPS then I see the spread-spectrum clock for
the SMSPS controller wrappling around 50-60KHz.
In fact I can see almost all here in the house. If someone activates his
TV I see the 15625Hz PAL line frequency coming out of bottom noise.
On the Maxim web-site is a AppNote for using a sound-card as a sampling
head.
- Henry
Azelio Boriani schrieb:
Interesting the ESI sound card, I'll check where to buy one. Useful to
sample VLF time and frequency signals directly.
--
ehydra.dyndns.info
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