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RE: LF: OK2BVG_8970

To: _RSGB_LF <[email protected]>
Subject: RE: LF: OK2BVG_8970
From: Lubos OK2BVG <[email protected]>
Date: Wed, 4 May 2011 20:15:00 +0200
Importance: Normal
In-reply-to: <[email protected]>
References: <[email protected]>,<[email protected]>
Reply-to: [email protected]
Sender: [email protected]
GE, Stefan!
I am pleased, that my signal was seen in UK, that is great! The weather was fine and my PA worked without problems.
Thanks for your coments about SL. I must think about that.

My signal was not seen on your grabber, hm...may be sometimes in the future.

73!

Lubos, OK2BVG


Date: Wed, 4 May 2011 10:47:52 +0200
From: [email protected]
To: [email protected]
Subject: Re: LF: OK2BVG_8970

GM Lubos, VLF,

You are strong visible at OE3GHB and Paul Nicholson. The QRN is pretty low this morning, just like yesterday. There seems to be a trace slightly above 8970.04 Hz on my grabber but i still haven't identified the "K".

There were some changes in the latest SL Version (V2.76b16 and above) on the noise blanker. I tried to find better settings to bring out a signal of the noise, without further success. On http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html you find 2 424 uHz windows running at exactly the same USR file but the above window is a SL instance with the old noise blanker (b09) and below you'll find a SL session with the new blanker (b18). It seems the new version allows a VERY slightly improved signal, in the range of 1 dB or below. So not really a milestone but at least no disadvantage of the new version and the old USR files. Several parameter adjustments resulted in worse or equal SNR, so it still seems to be very close to optimal...

Thank you for the test signal! That applies for Uwe/DJ8WX too, of course.

Best 73, Stefan/DK7FC

Am 04.05.2011 05:42, schrieb Lubos OK2BVG:
Hello VLF!
The weather is good, so I will be active on 8970Hz tomorrow:

***INFO***
Date: 04.05.2011
Time: 05:00 UT - 11:00 UT
Antenna: Marconi L 24m up + 220m top load
PA: 120W  
Identification: K (2x)
Mode: DFCW 3000
FRQ: 8970.040 (+/- some few mHz :-)
Shift: 10mHz


Lubos, OK2BVG
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