NVIS QSO is not so easy with a mobile whip antenna especially when the distance is short because the takeoff angle is almost directly upward 90 degrees.
The best NVIS location seems to be a roof corner. See another location simulation here.
This is a 1.5 meter long whip antenna simulation on 80 meter in a simple caravan model.
Vertically orientated whip antenna model |
45 degrees tilted whip antenna model |
Horizontally tilted whip antenna model |
Vertically orientated whip antenna elevation plot in dBi scale |
45 degrees tilted whip antenna elevation plot in dBi scale |
Horizontally tilted whip antenna elevation plot in dBi scale |
Verdict
The best location of a NVIS car whip antenna seems to be in a roof corner to get the best overall results.
Tilting a short whip in this roof corner mount case seems to worsen overall performance.
Update 2023-02-03 OH7SV
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