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| To: | [email protected] |
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| Subject: | Re: VLF: Back on 5.17 kHz / 58 km... |
| From: | Paul Nicholson <[email protected]> |
| Date: | Sat, 7 Jan 2017 04:09:23 +0000 |
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Decoded '73 DK7FC' from Cumiana (Renato Romero, vlf15, 504.6km) with constant ref phase, Eb/N0 = 0.6, S/N 16.16 dB in 11.8 uHz, -67dB in 2.5kHz. Very strong at Bielefeld (Wolf Buescher, vlf6, 303.8km) Eb/N0 11.6dB, 27.17 dB in 11.8 uHz, -56.1dB in 2.5kHz, constant reference phase. Here, improved my decode to 3.9dB when I remembered to use the -a option which normalises the amplitude by the average noise. I am not seeing much day/night phase shift at any site. Some measurements on the carrier will be the next job. -- Paul Nicholson -- |
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