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Posted by Ed Holland on April 12, 2024 at 20:57:45.
In Reply to: ECLIPSE EXPERIMENT IDEAS posted by John Davis on April 08, 2024 at 16:00:34.
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Quick update: I was able to secure good signal strength recordings of WWV during the consecutive days of 8th and 9th of April. An explicit recording of the noise (used in the S/N calculation) was also made, so that anomalies in the data due to disruption in this factor could be identified. AKA a sanity check. The results were interesting, and over the two days, the pattern of received signal strength showed very similar long term variations, with a range approaching 20 dB. See attached chart. Note, the Noise plots are not shown in this selection of the data, although they appear in the legend. As to the crucial question, was any "eclipse effect" observed, the answer is no. This is not too surprising, since no part of the path between transmitter and receiver was not subject to a zone of totality. As mentioned before, WWV was not my first choice as a subject for study. That had been the transmission from Cutler, Me on 24 kHz, which proved to be absent on the morning of Eclipse day. Although there was no eclipse observation apparent in the data, this was still a good learning experience for making VLF observations.
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