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| Subject: | Re: VLF: EbNaut tonite, 'SMS' via VLF |
| From: | Markus Vester <[email protected]> |
| Date: | Thu, 25 May 2017 21:52:01 -0400 |
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Unfortunately not, the spectrum has been decimated to 0.1524 Hz bandwidth before the export. I could do sinc interpolation by zero-padding the spectrum but I guess that won't help much. However I should have mentioned that SpecLab FFT recordings are usually delayed by a four sample latency. In this case it is ~26 seconds behind the file timestamp, which would surely prevent a successful decode if not accounted for in the start offset. Best 73, Markus -----Ursprüngliche Mitteilung----- Von: Paul Nicholson <[email protected]> An: rsgb_lf_group <[email protected]> Verschickt: Fr, 26. Mai 2017 2:08 Betreff: Re: VLF: EbNaut tonite, 'SMS' via VLF > The transmission was recorded at DL0AO using a synthetic > cardioid antenna. > here's our wav: > http://df6nm.bplaced.net/VLF/fec_tests/dl0ao_05250424.wav (129 kB) This doesn't seem to want to decode. Do you have a version with higher sample rate? -- Paul Nicholson -- |
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