To: | [email protected] |
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Subject: | Re: VLF: EbNaut on 2 frequencies |
From: | Paul Nicholson <[email protected]> |
Date: | Tue, 17 Oct 2017 09:14:27 +0000 |
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Stefan wrote: > will restart with 30 seconds symbol length at 20:30 UTC 6430.005000 copied '3T' at +0.3 dB; 6510.005000 copied '73' at -1.8 dB; > Do you exclude local QRM of the individual frequencies? Spectrum during the 13:00 test http://abelian.org/vlf/tmp/171017a.gif and during the 20:30 test http://abelian.org/vlf/tmp/171017b.gif The background noise doesn't seem too different at the two frequencies. No strong interfering signals in the signal bandwidths, the 129th mains harmonic is weak and fairly well spread out. -- Paul Nicholson -- |
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