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Re: LF: Little TX test at 8270.00046 from JN64

from [Riccardo Zoli] [Permanent Link][Original]
To: LF Group <[email protected]>
Subject: Re: LF: Little TX test at 8270.00046 from JN64
From: Riccardo Zoli <[email protected]>
Date: Tue, 12 Dec 2017 03:02:58 +0100
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Hi Paul, Stefan, Markus VLF.

It's great, dear Paul!! Your RX sensitivity is absolutely fantastic.
Switch off scheduled at 0700 UTC.
Many thanks for your encouragement.

I'm using my LF antenna, dear Stefan; an inverted L with a 3 wire top hat (it's a "pseudo-sloper" design, supported by 2 x 12 meters height telescopic masts with matching/feeding point into my house). Capacity is about 500pF.
The frequency is generated by a GPSDO (NEO-M8N module + 16384kHz OCXO + DDS). Some pics attached. 


All the best,
GN,

73 de Riccardo IW4DXW






Il 12/Dic/2017 00:14, "Paul Nicholson" <[email protected]> ha scritto:

So far,  http://abelian.org/vlf/tmp/171211a.gif

That's 10.8 dB in 80 uHz.

Dex came on the air about 21:00 on the same frequency,
(half a bin away).   I spun the beam around to 280
to point at North Carolina and the peak vanished.

So the signal is yours Riccardo.

Signal strength is similar to 10uW from Markus at
about the same distance.   Noise is high tonight, without
the background it would show up on the online spectrogram.


--
Paul Nicholson
--


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