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Re: VLF: Weekend on 8270.0025 Hz

from [DK7FC] [Permanent Link][Original]
To: [email protected]
Subject: Re: VLF: Weekend on 8270.0025 Hz
From: DK7FC <[email protected]>
Date: Sun, 14 Apr 2019 17:41:46 +0200
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Hello Markus,

Thanks for your transmission. It was well visible here. Later i'll tell more about the SNR and how many characters could have been transferred in a message.

Thanks to you and the DL0AO crew for participating again tonite. Probably i will call you again on the phone ;-)

73, Stefan

Am 13.04.2019 18:42, schrieb Markus Vester:
It's been a while since my last VLF transmissions last December, and I've started to develop symptoms of abstinence. So I decided to push up the antenna once again and sent a few hours of straight carrier, with my usual ~ 10 uW EMRP:

Fri  2019-04-12    9:13 - 11:23   8270.0025 Hz,
Fri  2019-04-12  17:18 - 19:19   8270.0025 Hz,
Sat 2019-04-13    6:36 - 10:30   8270.0025 Hz,
Sat 2019-04-13  10:30 - 11:20   ~8270.01 Hz (slight drift due to lost GPS lock).

I was pleased to find traces on various grabbers:

Heidelberg: http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html (red on the 424 uHz the colour RDF)
Amberg: https://vlf.u01.de/  (cyan, best on the W cardioid)


Best 73,
Markus (DF6NM) 

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