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| To: | [email protected] |
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| Subject: | Re: VLF: EbNaut tonite |
| From: | Paul Nicholson <[email protected]> |
| Date: | Thu, 25 May 2017 19:50:31 +0000 |
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Stefan wrote:
> Well, let's try something for the record list again:
> f = 8270.100000 Hz
> Start time: 24.May.2017 20:00:00 UTC
> Symbol period: 10 s
> Characters: 160 ( 1 SMS length :-) )
> CRC bits: 10
> Coding 8K21A
> Duration: 22h
Copied
"THIS IS THE FIRST SMS SENT OVER VLF BY RADIO AMATEURS.
THANKS TO PAUL NICHOLSON, DL4YHF AND DF6NM FOR SOFTWARE
DEVELOPMENTS. JOIN IN THE EXPERIMENTS! 73, DK7FC"
Rank 0, constant reference phase;
Eb/N0 = +0.6 dB;
BER 27.3%;
carrier S/N: 30.17 dB in 12.6 uHz,
-18.81 dB in 1Hz,
-52.79 dB in 2.5kHz;
That's a new record message length for VLF.
--
Paul Nicholson
--
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