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Re: VLF: New experiments on 17.47 kHz planned...

To: [email protected]
Subject: Re: VLF: New experiments on 17.47 kHz planned...
From: DK7FC <[email protected]>
Date: Wed, 22 Aug 2018 17:39:26 +0200
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VLF,

Last night a carrier test transmission at 1.2 A antenna current went well for a few hours.

Today the regular carrier transmissions start from 16...0 UTC on 17470.1 Hz.

Reports welcome :-)

73, Stefan

Am 20.08.2018 16:25, schrieb DK7FC:
PS: Is there anyone else interested in VK or even ZL ?

Am 20.08.2018 16:23, schrieb DK7FC:
Hi VLF,

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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