Scott, N0EDV wrote:
"I have plans for something similar from the RSGB VHF/UHF Manual, but it
doesn`t show the feedpoint matching in detail, so I`m not sure how to
match it to 50 Ohms."

Mine is the 3rd edition with Halo Aerials starting on page 7.29. Make
the shorting bar (A) adjustable in distance from the PL259, instead of
brazed to the brass tubes. Adjust for minimum reflected power in your
50-ohm coax.

Best regards, Richard Harrison, KB5WZI