Jerry,

There are, unfortunately, two conventions for specifying the handedness of circular polarity. See the "Left/right handedness conventions" section of the Wikipedia article on Circular polarization at: https://en.wikipedia.org/wiki/Circular_polarization#Left.2Fright_handedness_....

I would certainly agree with you that in the context of radio antennas, that SV1BSX got it wrong and should have used the other other convention.

Regards,

Larry K8MU