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Re: LF: Now using Mini Whip here on 8970 Hz in JO33kh, Appingedam

To: <[email protected]>
Subject: Re: LF: Now using Mini Whip here on 8970 Hz in JO33kh, Appingedam
From: "PA1SDB, Peter" <[email protected]>
Date: Fri, 23 Mar 2012 22:00:23 -0000
In-reply-to: <[email protected]>
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Hi Eddie,
I have set that 'Sampling rate detector" in SL.
I use 20k9 FTA, the indicator is Green, I have Enabled it.
What els have I to do ????
 
I use that Bandpas filter in the left Black box.
8970 Hz center, 500 Hz width.
Spectrum on L2
 
FTT input size is 524288
Decimal input by is 216
 
That gives:
 
Effect of FFT settings with fs= 48.0000 kHz:
Width of one FFT-bin: 423.855 uHz
Equiv. noise bandwidth: 635.783 uHz
Max freq range: 8.91444 kHz .. 9.02556 kHz
FFT window time: 2359.296 s
Overlap from scroll interval: 87.5 %
I did not callibrate it somehow. On 30 meters / QRSS I use that time sign on 9996 KHz. I don't know how to callibrate it on VLF.
I can't whistler that stable :-) 
 
That signal on 8.969,995 has a kund of fading. I hope it's not something local.
 
Feel free to inform me if I do somnething totaly wrong !
No hard feelings :-)
 
 
73's Peter - PA1SDB
 
 
 
----- Original Message -----
From: qrss
Sent: Friday, March 23, 2012 8:51 PM
Subject: Re: LF: Now using Mini Whip here on 8970 Hz in JO33kh, Appingedam

Peter

Very good, how is your calibration? Henny is on 8.97000 you have a line at 8.96995 if it stops at 23.00 that is when Henny is QRT.

73 Eddie G3ZJO


On 23/03/2012 19:59, PA1SDB, Peter wrote:
Hello all,
Today I did plant the "PA0RDT Mini-Whip" antenna in the backyard at about 20 meters from the house and 4 meters above ground level.
 
Last 2 week I was using 2 pasive loop antenna's who where connected direct into the mike input.
That wasn't a succes...
 
I hope to see some results soon :-)
 
Take a look at the links below. I did start logging on Friday evening at about 19:00 UTC, so perhaps I have to adjust contrast later.
A page on QSL net http://www.qsl.net/pa1sdb  or direct to the grabber schreen plot http://home.deds.nl/~knol/dream.jpg
 
73's, Peter - PA1SDB
 
QTH is Appingedam in JO33kh, in the very North- East part of The Netherlands.

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