To: | [email protected] |
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Subject: | Re: LF: Re: U.S. VLF License WH2XBA |
From: | Paul Nicholson <[email protected]> |
Date: | Sun, 02 Mar 2014 14:37:36 +0000 |
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A spectrogram in 1/120 seconds = 8.33 mHz resolution http://abelian.org/vlf/tmp/29499_140302f.gif The brightness is normalised to the background noise level and the Z scale is S/N power ratio (not dB). Looks like it might be Morse but is not readable. S/N is too poor in this wide bandwidth. -- Paul Nicholson -- |
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