Radio Amateur Quiz Canadian License

EN FR

Question B-006-011-002

Approximately how long is the driven element of a Yagi antenna for 14.0 MHz?

Correct Answer

10.21 metres (33.5 feet)

Explanation

A driven element is typically close to a half-wavelength. L(m) ≈ 150 / f(MHz) = 150 / 14.0 ≈ 10.7 m. A slightly shorter length due to end effect/element interaction is common. L(ft) ≈ 468 / 14.0 MHz ≈ 33.4 ft.

Warning: Generated by AI