90m band D-layer test during the eclipse: Shannon VOLMET 3413 kHz at 18:19 UTC - 5 minutes after max @OxfordShortwaveLog
90m band D-layer test during the eclipse: Shannon VOLMET 3413 kHz at 18:19 UTC - 5 minutes after max  @OxfordShortwaveLog
Uploaded August 2026 | Updated September 2026, 2 weeks ago
Hi there, the signal from Shannon VOLMET was even stronger, a few minutes after the eclipse maximum. Perhaps there is a time-constant associated with D-layer absorption? Final video to come, detailing how the signal had deteriorated again after the eclipse had finished.

Here is a link to the previous videos, recorded 35 minutes from maxium and at maximum:

youtube.com/watch?v=E53wqr_SM4o
youtu.be/qNQUJoSxz1I


Recorded in Oxford on the 12th of August at 18:17 hrs UTC, using an Elad FDM DUOr and a Wellbrook ALA1530 magnetic loop antenna (outdoors) via an NTi AntennaJet RF splitter and GI1000 galvanic isolator.

Thanks for watching and 73.
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90m band D-layer test during the eclipse: Shannon VOLMET 3413 kHz at 18:19 UTC - 5 minutes after max

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