Amateur Extra › E9 Antennas and Transmission Lines › E9E01
E9E01
Which matching system for Yagi antennas requires the driven element to be insulated from the boom?
Pick an answer to check it.
Answer: B. Beta or hairpin
The beta or hairpin match feeds the driven element at its center, which must be split and insulated from the boom. Gamma and T matches can attach to a grounded element.
Tip: Hairpin needs an insulated, split element.