If you made a half-wavelength dipole antenna for 28.150 MHz, approximately how long would it be?

Why

At 28.150 MHz, a half-wavelength dipole is roughly 5.08 metres long because radio waves travel at the speed of light, and dividing that speed by the frequency gives the full wavelength, which is then halved for this antenna type. The full explanation — and one for every question — is in Pro.

Practise this section

Feedlines and antenna systems is section B-006 of the Basic exam: Getting the signal out: antennas, feedlines, SWR, baluns, matching, and why antenna length depends on frequency.

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