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| Subject: | LF: VLF SR-cal vs. 1PPS SR-Cal ~8270 Hz |
| From: | "PA1SDB, Peter" <[email protected]> |
| Date: | Wed, 29 Jan 2014 20:43:09 -0000 |
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Hello, Markus, Uwe, Wolf, VLF.
As some of you know, yesterday I did reconfigure my VLF
RX PC from a VLF (22k1) Sync freq/ Source into a GPS (1PPS) Sync freq/
Source.
In my oppinion it is worth to invest in a GPS modul like
that SKM52 that I use now if I take notice to today's results...
DJ8WX is here QRV at 8270.005 (at 190 KM
distance)
PA1SDB is here QRV at 8270.015 (local backyard DX
over 20 meter distance)
There is much more breaks and dispersion visible while I
was using 22k1Hz GQD as reference.
The 22K1 inlay was recorded 28 January 2014
The 1PPS was recorded one day later at 29 January 2014  If you take a look at this 47 uHz window, you understand
what I mean.
A needle sharp trace while using a 1 PPS signal, but
often much dispersion wile the 22k1 signal was used as SR-cal.
 Comments please :-)
73's, Peter - PA1SDB
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