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Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz

To: [email protected]
Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz
From: DK7FC <[email protected]>
Date: Fri, 03 Jun 2016 11:33:11 +0200
In-reply-to: <[email protected]>
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Hi Paul,

OK, thanks for the feedback.
I tell you the messages so you can extract more informations why they failed

Message 22.05.2016: 'cqcq dk7fc in jn49ik'
Message 25.05.2016: 'not very easy'

10 characters at 100 s symbols is the best result so far.
Do you like to proceed with further attempts? Or is it to much effort for you?
I have no problem with defeats.

73, Stefan

Am 03.06.2016 09:01, schrieb Paul Nicholson:

Stefan wrote:

> What about your results? Nothing?

Nothing.

> f = 6470.00000 Hz
> Start time: 22.05.2016   04:00:02 UTC
> Symbol length: 200 s
> Characters: 20

> f = 6470.00000 Hz
> Start time: 25.05.2016   04:00:02 UTC
> Symbol length: 140 s
> Characters: 13

I have to admit defeat on both these transmissions.

I've tried a range of beam headings and so on but I guess it's
a few dB short of a decode.  Some very noisy nights during
these tests.   I've been experimenting with the sferic
blanker to try to improve performance on very strong sferics.

--
Paul Nicholson
--


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