From Newsgroup: rec.radio.amateur.misc
Standard Ground Plane Antenna in Two Environments. Simulation: RichWire-VEMSA3D of OROTO CP4TWS plus Two Applications of Adapter Math
Model (Green-Blue). Measurements: LabVNA (Black-HP8505A) and ToyVNA (Red-NanoVNA), but their DER-DEI Error Estimation are Included in a
Paper that will be Published Soon in FunkTechnikPlus # Journal.
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https://op4.eu/i/260224/gp.png
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