[Elecraft] OT: Distinguishable angular momentum in radio photons?

[Ron D'Eau Claire]

That sort of thing might work on VHF and above, but on HF it's my
understanding that the polarization of the wave is altered in unpredictable
ways by propagation through the ionosphere.

73, Ron AC7AC

-----Original Message-----

The C-band satellite has 2 channels on each frequency - I can't recall if
one was horizontally polarized and th other vertical or whether one used
right hand circular and the other left hand.  In any case, it works and
works quite well.

So having 2 non-interfering non-multiplexed streams on one frequency is
nothing new.

73,
Don W3FPR