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VLF: New experiments on 17.47 kHz planned...

To: [email protected]
Subject: VLF: New experiments on 17.47 kHz planned...
From: DK7FC <[email protected]>
Date: Mon, 20 Aug 2018 16:23:00 +0200
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For this week, i'm planning to start with new experiments on 17.47 kHz, where i have a (renewed) special permission to transmit.
So far the best results were a prooved carrier detection as well as a 1
character EbNaut decode by Edgar from Tasmania (VK7).
The first goal will be to determine the best time (start time and
length) on the path for this season. We have a usable path for about 2
months centered on our autun/spring time (21st SEP).
The Signal will be exported by SpecLab to simple txt files containing
the FFT data. This allows stacking, which will be required to get some
S/N at all. A reasonable stable path is essential during the
transmission time. All this will be determined by running some carrier
transmissions, a few hours per day, starting about 16 UTC.
When knowing the time to try we will attempt to transfer a 2 character
message and then even longer messages. 5 characters would be realistic i
think, with some luck and good propagation and low QRN on the RX site...
More soon.

73, Stefan

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