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Syllabus topic

Antennas & Feedlines

Getting power out of the radio and into the air with as little wasted as possible.

Practise this topic
12% of the exam0 questions in the bank

Sub-topics

  • Antenna Types

    Dipoles, verticals, Yagis, loops, gain, radiation patterns and polarisation.

  • Feedlines & SWR

    Coaxial and open-wire feeders, impedance matching, SWR, baluns and antenna tuners.

Lessons

  • SWR: what it actually means

    Standing waves, why 1:1 is the ideal, what a high reading really costs you, and what an antenna tuner does and does not fix.

    9 min