LF: VLF_-180504

[Lubomir Bobalik <lubomir.bobalik@rtv5.cz>]

Hallo Riccardo!
Hmm, it is interesting - I have never heard about that effect.
I saw your signal again, see the picture. I am pleased, you are active on VLF. My receiver is continuously "ON"  for your tests.

73!

Lubos, OK2BVG, JN88KS

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Dne 29.4.2018 v 23:29 Riccardo Zoli napsal(a):

Lubos,

many thanks for your report!

I'm testing the coil for long transmissions; I have observed, for my first time, that atmospheric conditions affects antenna current: for example, today it's been a sunny and dry morning, in fact I reach 625mA; in the afternoon the sky was so cloudy and I have measured only 570mA. Now the value is stabilized around 590mA (relative humidity's still high: 86%).

I'm preparing an EbNaut setup for next days: I will announce details soon.

All the best

73 de Riccardo IW4DXW

Il 28 Apr 2018 12:00, "Lubomir Bobalik" <lubomir.bobalik@rtv5.cz> ha scritto:

Hello Riccardo!
I saw your signal in JN88KS again. Well done, thanks for your activity!

Lubos, OK2BVG

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Dne 26.4.2018 v 13:04 Riccardo Zoli napsal(a):

>
> Hi VLF,
>
> A new carrier test is running with about 610mA.
> Now, with last SL version, the PLL configuration made by Markus seems
> to works well here, the phase is stable. I started this test yesterday
> at about 10:00 UTC.
> I'm looking for an adequate conditional statement that permits to
> inhibit the audio (and the TX) in case of an excess of antenna current
> drop. Any suggestion?
> My current VLF condx attached.
>
> All the best
>
>
> 73 de Riccardo IW4DXW
>
>
>
>

180505.JPG
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