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| Subject: | Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz |
| From: | Paul Nicholson <[email protected]> |
| Date: | Wed, 30 Nov 2016 18:42:04 +0000 |
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> f = 6470.00000 Hz > Start time: 23.11.2016 08:00:00 UTC (Daily repetition) > Symbol length: 12 s > Characters: 40 > CRC 16 > Coding 8K19A Eight repeats and no sign of a decode. I expected six repeats would be enough. > A phase turn of 180 deg is done by varying the frequency > for a certain time > PSK_Regelzeit.png That would be significant I think. Perhaps it costs a dB or two. I've tried some small time offsets. Perhaps I can blank the symbol transition periods and just work with say 8 seconds of each symbol. Something to try tomorrow. -- Paul Nicholson -- |
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