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Date: Sun, 15 Dec 2013 11:49:29 -0700
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Subject: RE: LF: A short VLF experiment at DK7FC
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Status: O

Peter,

Is the Flux Density scale on your grabber calibrated? In femtotesla?=20

Stefan's signal strength seems to be in the 0.1 to 0.4 range on your =
flux
density scale.=20

If Stefan's signal strength is near 1 femtotesla at your location, I =
would
have a chance of seeing his signal at my location. I see some indication =
of
a signal around 8970.005, but SNR is poor and I am not sure of the
calibration of my clock, so it would be helpful to know if the signal =
that I
am seeing might be Stefan's (if so I could reduce RX bandwidth for =
better
SNR).

73,

Jim AA5BW
 =20

-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org
[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of PA1SDB, Peter
Sent: Sunday, December 15, 2013 6:49 AM
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: A short VLF experiment at DK7FC

Stefan,
Signal is O.K., but stabillity is'nt :-( To much spread around center
frequency.

(I know.... I'm complaining about 0.01 Hz drift..........)

73's Peter


----- Original Message -----
From: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de>
To: <rsgb_lf_group@blacksheep.org>; "Paul" <paul@abelian.netcom.co.uk>
Sent: Sunday, December 15, 2013 4:14 AM
Subject: Re: LF: A short VLF experiment at DK7FC


Since 4:10 UTC, the signal is available without interruptions now on
8.97000500 kHz.

73, Stefan/DK7FC

Am 14.12.2013 20:50, schrieb Stefan Sch=E4fer:
> Hi all,
>
> Tomorrow the rain probability is just 10% and so i think i can risk to =
run
a short VLF experiment on 8970.00500 Hz. I'm using the=20
> fixed antenna at JN49IK00WD. These days, the QRN is very low for quite =
a
long time! The plan is to run about 500W RF power, or=20
> more, depending on the voltage limit of the antenna. And the plan is =
to
start transmitting tonite, after the experiment with=20
> VO1NA, i.e. i'll come on air arround 2 UTC, hopefully. I will run the =
test
until the late afternoon. First i'm TXing a stable=20
> frequency until 9 UTC, later some DFCW-600, and then maybe some tests =
in
OPDS32.
> Suggestions welcome.
> BUT it all depends on the WX. If it starts to rain then i have to =
stop.
> Will someone give it a try and watch for me?
>
> 73, Stefan/DK7FC