What is an antenna? What does it do? How do I connect my antenna to my radio? Can I build my own instead of buying one?

All these questions and more answered in the Intro to Antennas online class.

80m vs 70cm, what's the difference?
Dipole vs Yagi
What's the best feedline for my setup?
How do I calculate and design my own antenna?
Formulas
     Dipole (½ wave)
     Yagi (directional)
     Ground plane (¼ wave)
     ⅝ wave
     .64 wave, the magic antenna
Building materials
How can I check my antenna to make sure it's working right?
Make sure it's grounded!
Build a tape-measure Yagi for 144 and 440 MHz!
Find an old or broken tape measure, let's take it apart and build an antenna for your HT!

This class will lightly touch on antenna theory and focus on calculating, design, and implementation of your station's antenna.