Date: Tue, 8 May 2012 20:19:28 -0230 (NDT)
From: jcraig@mun.ca
To: rsgb_lf_group@blacksheep.org
cc: "YV7MAE Maritn A. Echazarreta D." <yv7mae@gmail.com>
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Subject: Re: LF: VO1NA - Venezuela opening
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Thanks Stefan (and also to Dex for getting Martin's grabber images. )
Yes, SA is continent 4, and still trying to reach the southern=20
hemisphere!

QRV again tonight. 4.7 Amps to a 100m wire at 15m.

73
Joe

On Tue, 8 May 2012, Stefan Sch=C3=A4fer wrote:

> Hi Dex, Joe, Martin, LF,
>
> Congratulations for the new continent Joe!! Is that your 4th?
>
> Dex, sunrise in YV is arround 10 UTC these days.
>
> There is a problem with the dropbox upload. An error massage comes up. We=
=20
> will have to work on that today. However the Teamviewer link worked and s=
o i=20
> was able to see the ongoing SpecLab instances. XKO was way stronger than=
=20
> yesterday, a clear O copy! We'll publish the screenshots later. Probably=
=20
> there was also a stronger copy of VO1NA and maybe others as well. Very=20
> interesting changing conds. Also the wideband window is very interesting =
i=20
> find. It clearly shows that the noise is 15...20 dB above the RX+soundcar=
d=20
> noise on each frequency in the LF band.
>
> Tnx to the US+CA stns for providing LF amateur signals. That is definitiv=
ely=20
> helpful to get impressions about the path and understand the grabber as a=
=20
> useful device! My first mail to Martin with the idea for a common LF proj=
ect=20
> is dated *March, 29th*. And here we are! :-)
>
> We'll go on to play with an active E field antenna which may reduce the l=
oacl=20
> QRM a bit. Currently a 80m long wire is used for reception. It is about 5=
m=20
> above the ground in average. One part is close to the house. By analyzing=
 a=20
> wav file taken in YV i saw in a fast scrolling spectrogram that there is=
=20
> still significant local QRM between the massive sferics.
>
> Also i think with this wav file it may be possible to find more suitable=
=20
> settings for the noiseblanker. While the NB settings in DL or EU are=20
> optimised to reduce the QRM of DCF39, there may be more efficient setting=
s=20
> for YV which concentrate on the sferics! So maybe we can get another dB o=
r=20
> even 2?
>
> Lastly we're having first thoughts about constructing a loop antenna, may=
be=20
> one which is sililar to the K9AY type...
>
> 73, Stefan/DK7FC
>
>
> Am 08.05.2012 14:11, schrieb Dexter McIntyre W4DEX:
>> John Andrews wrote:
>>> Joe,
>>>=20
>>> It wasn't WD2XES -- I was only on from 0115 to 0200. I believe that's a=
n=20
>>> "O", probably from WD2XKO. The frequency calibration on that screen loo=
ks=20
>>> a little high.
>>>=20
>>>=20
>> XKO was on.  QRT at 1200 hrs.  Sunrise time at Martin's QTH?
>>=20
>> Dex
>
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