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| Subject: | Re: VLF: Carrier on 4470.005 Hz! - EbNaut test |
| From: | Markus Vester <[email protected]> |
| Date: | Wed, 30 Aug 2017 12:03:32 -0400 |
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Hi Stefan,
nothing from 27th and 28th. Yesterday (29th) QRN was much lower. Unfortunately the DL0AO computer failed shortly before the full EbNaut export would have been completed at 20:27 UT. But we do have the "0331" files, ending at 18:27 after 97% of the sequence duration. But these alone still didn't decode, neither on the EW or W antennas. However stacking the partial data from 23rd and 29th did help a lot, with a good decode now also from the W cardioid: ________________________ Carrier Eb/N0 (dB, from 97%) EW W 23rd 0.3 nil 29th nil nil both 2.7 1.6 ________________________ Best 73, Markus -----Ursprüngliche Mitteilung----- Von: Markus Vester <[email protected]> An: rsgb_lf_group <[email protected]> Verschickt: So, 27. Aug 2017 11:05 Betreff: Re: VLF: Carrier on 4470.005 Hz! - EbNaut test No correct results from the 25th and 26th either. I didn't try more stacking because adding in noisy days seemed to make things worse rather than better. The best decode was the one from the 23rd alone, EW antenna (log attached).
Best 73, Markus PS1: Under Win-10, Windows Explorer apparently crashes when trying to show details of a wav file with "zero" nominal samplerate. PS2: Your receiver on the tree seems to have gone off yesterday night. -----Ursprüngliche Mitteilung----- Von: DK7FC <[email protected]> An: rsgb_lf_group <[email protected]> Verschickt: Fr, 25. Aug 2017 20:06 Betreff: Re: VLF: Carrier on 4470.005 Hz! - EbNaut test Am 25.08.2017 15:25, schrieb Markus Vester:
Well at least the decode has a 0.3 dB higher Eb/N0 and the ref phase is constant now. This is an improvement. Again it was a very noisy day here. But soon that time will be gone! In a few weeks i don't expect local thunderstorms any more, which is very relevant on that 67 km band. 73, Stefan
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