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Re: LF: EbNaut test at 8270.00332 from JN64bw

from [Riccardo Zoli] [Permanent Link][Original]
To: LF Group <[email protected]>
Subject: Re: LF: EbNaut test at 8270.00332 from JN64bw
From: Riccardo Zoli <[email protected]>
Date: Tue, 19 Dec 2017 19:41:32 +0100
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Hi Paul, Domenico, VLF. 

OK Paul, thanks again for your detailed info. A new transmission scheduled this night, trying a true "stacked decode" in Warsaw:


f = 8270.0033187866 Hz
Start time: 20:00:00 UTC
Symbol period: 60 s
Characters: 2 (repea­ted)
CRC bits: 10
Coding 16K21A
Duration: 11h,12min
Antenna current: 405 mA


All the best

73 de Riccardo IW4DXW





Il 19/Dic/2017 18:43, "Paul Nicholson" <[email protected]> ha scritto:

After correcting for the phase shift, Warsaw decodes from the two
nights stacked:  Eb/N0 = -0.3 dB, -35.74 dB in 1Hz, using ref phase
pattern 120,90,150,120.     Constant reference phase gives -1.5 dB.

But this is not a genuine decode because it needed hidden knowledge
of the phase shift.

--
Paul Nicholson
--


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