Homemade « Balckcoffee antenna » for ELF and VLF recording

The goal of
the construction is to get heavy E-Field antenna with Well filled inside
between the metallic box (diam.90mm) and PVC tube of 100mm diameter. Due to the
Well and the heavy construction this antenna is much more less sensitive to
wind and vibration that usually produce a lot of sort of spike or/and noise
burst on the signal when antenna is moving.

It should be also an advantage to get a nice circular metallic area to keep the electron in the box! by F4IEW, Franck Feb 21, 2020 – France JN19DA

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