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Re: VLF: Weekend carrier on 8270.005 Hz...

To: [email protected]
Subject: Re: VLF: Weekend carrier on 8270.005 Hz...
From: DK7FC <[email protected]>
Date: Sun, 12 Feb 2017 22:36:56 +0100
In-reply-to: <[email protected]>
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Hi Eddie,

Indeed, it looks like you've got it! A first detection from the fixed antenna, as you say. Congratulations!
The average SNR is in the order of 6...8 dB in 47 uHz i would guess.
In the 'wideband' window it looks like there is a low pass filter, already affecting 8.27 kHz. Is it the antenna schematic that i used for ELF, ZEVS, Schumann? Can you send me the schematic details?
If you can gain another 6 dB SNR, which could be realistic, then we
could try EbNaut on VLF. I guess that's a new field of operation for
you. Would you like to participate?
These days i'm attempting to leave EbNaut decodes at RN3AUS. You could
try to join in there.
I looked on Pauls grabber and saw that the SNR is not worse at night, N
and S is higher.
Yes, the safety function was triggered last night due to heavy rainfall
(must have been), so the transmission stopped. Maybe it was not
necessary but maybe it saved the coil from a fault, who knows?! I should
have made QSY in the morning but never mind.
BTW the recent 2 character message (attempt to be decoded in Moscow,
result willl be known tomorrow!) was also decoded at SQ5BPF in Warsaw,
that's already > 900 km. We are in abt 650 km distance?
73, Stefan



Am 12.02.2017 21:45, schrieb g3zjo:
On 11/02/2017 12:25, DK7FC wrote:
I'm running another carrier on 8270.005 Hz.
Stefan

Definitely receiving you in 47uHz, there was a break in transmission in the night, auto protection ? That was confirmed by a break in my received line.
Sub 9KHz Test 5, 14uHz, is showing one red pixel on your frequency.
8uHz instances are showing a nice peak and a line is building slowly.
I think this is the first time I have seen your fixed station.

73 Eddie G3ZJO





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