Hi Stefan,
The reference is tuned into ICV on 20.270 KHz. It looks
like that 3rd PC that I test now is the best of 3 sofar. But it runs to short to
see details.
The TX PC is connected to a passive loop. Not to the
Mini Whip. ICV is stable here at that loop and not much effect at the signal
during sunrise and sunset.
GQD and GBZ fade out totaly at sunset/sunrise. ICV
does'nt.
I must say all 4 grabber windows at my Grabber website
are locked at 22k1.
The localy generated signal in that 47uHz window at
my grabber looks good. I'm tuning the power a bit to get just over the
noise.
That's why it fades in and out :-)
(if you just tuned in, I'm only local testing with few
100mW into 12 cm pice of wire :-)
I leave the building now, I leave it as it
is for now.
Btw, I think to see traces of civilization on 8970.00
Hertz.
73's, Peter PA1SDB
----- Original Message -----
Sent: Friday, April 27, 2012 6:12
PM
Subject: Re: LF: Generating 8970 Hz
carrier with Spectrum Lab ?
Hi Peter,
Which reference signal are you currently
using? I think GBZ and GQD should be optimal for you. I'm using GQD for my 2nd
VLF grabber in the moment.
73, Stefan
Am 27.04.2012 13:12,
schrieb PA1SDB, Peter:
Tnx Stefan,
My 3rd experiment, a 10 year old notebook, ASUS PC
has just (10h UTC) begun generating a trace at 8970.1 Herz. Lets see what
happens in the next hours.
I will buy such soundcard as you sugest for USB port
if this 3rd PC fail's to...
CU.
Peter - PA1SDB
