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Re: LF: EbNaut on MF

from [Markus Vester] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: EbNaut on MF
From: Markus Vester <[email protected]>
Date: Tue, 16 Feb 2016 17:51:51 -0500
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1455663112; bh=rbJmymeFl2JfArJEIC4TcXztp2+u/dFe8VUIOrIj2zs=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=YYDQ6rNiz3pn7Sui/s9YQU1N7CqO+REskvTBihorSD07LmoC/aB6uYPC49gqyxIW2 7jf72sw0oepYlYkoaFHSzWJyAqUf3LPjTYz1rv0334bxDeSzn6i8LkMau0sn+Img5H AxEtNoZ2eAYV66z/K17m5mMa8LYKQ0XysLuXqvP4=
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Tried again last night but no luck. The best carrier piece was 13 dB SNR in 1.13 mHz around 3:22 UT. This would translate to -5 dB Eb/N0 for the message, so no chance to decode here.
 
The other difficulty at MF is of course the rapid phase variation and QSB, making EbNaut decodes a bit of a game of chance and luck. In that respect, this mode (at least the slow variants) seems more apt for longer wavelengths at LF and VLF. 
Recorder and spectrogram will be on again tonight. Riccardo is already producing a strong signal with textbook-shaped PSK spectrum around 477695.
 
Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: jcraig <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Di, 16 Feb 2016 10:04 pm
Betreff: Re: LF: EbNaut on MF




It's just getting dark here.  The TX is now on. 

477.7 kHz 8K19A 12 Chars 1 s elements on the half hour 

till dawn, fried fet, or mother nature's wrath. 

 

Best 73's Joe VO1NA


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