Rod Maupin wrote:
What if I am new to VHF/UHF and I want to do both. Could you get a
circularly polarized antenna, with both horizontal and vertical elements and
use it for both types? I don't want to buy two of the same antenna, only to
have one horizontal and one vertical.

Mount your beam antenna at 45 degrees to the vertical.
You can work both and only lose half an S-unit.
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73, Cecil http://www.qsl.net/w5dxp