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Re: VLF: Finally back on the 58 km band...

To: [email protected]
Subject: Re: VLF: Finally back on the 58 km band...
From: DK7FC <[email protected]>
Date: Sat, 30 Dec 2017 14:24:06 +0100
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Thanks Paul for that overview. Very nice! A few times i thought about providing a VLF stream from Heidelberg. This is a project for the next year. Not even a very big project. A simple Raspi could be used to provide that stream 24/7, with low power consumption...

73, Stefan

Am 29.12.2017 17:55, schrieb Paul Nicholson:

Stefan wrote:

> For this night, i run a short test message, ...

> f = 5170.1000 Hz
> Start time: 28.Dec.2017  18:30:00 UTC
> Symbol period: 90 s
> Characters: 1
> CRC bits: 3
> Coding 16K21A

> Can someone confirm that the message run as expected?

Todmorden (881 km)
------------------

 Eb/N0 +12.1 dB phase 50.3 *Decoded*

Bielefeld (303.8 km)
--------------------

 Eb/N0 +19.0 dB phase -51.9 *Decoded*

Cumiana (504.6 km)
------------------

 Eb/N0 +3.0 dB phase 171.0 *Decoded*

Warsaw (919.3 km)
-----------------

 Eb/N0 +0.2 dB phase -10.4 *Decoded*

All decodes at rank 0.

>  The message was 'R', if i remember correctly :-)

Correct!

--
Paul Nicholson
--


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