[time-nuts] broadband MPX signal stereo

[ehydra]

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.



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