It was very common for Hardware stores to carry television antennas, at least a couple of choices. Lowes and Home Depot carry on this tradition for now. In the past, often the local hardware store would not only carry an antenna or 2, but would carry a specific model that was known to perform well for the area. Now its more of a cookie cutter affair.
Introduces wave propagation, transmission lines, and antenna theory. Topic 1 discusses wave motion, sound-wave terminology, light waves, properties of electromagnetic waves and the electromagnetic spectrum. Topic 2 discusses radio-wave propagation, including components of radio waves, electromagnetic fields, and effects of the Earth's atmosphere and terrain on radio waves. Topic 3 discusses transmission line theory, including terminology, types of lines, losses, length of lines, and discussions on characteristic impedance, electromagnetic fields, line reflections, standing waves, and standing-wave ratio. Topic 4 discusses several antennas, including the Hertz, Marconi, several arrays, and special antennas.
That is a more difficult question than it would seem to be.
The short answer is the DIY FM Rhombic, with has by far the most gain and best rejection and tight beamwidth. However if you have FM transmissions that you wish to recieve from multiple directions that is not the best antenna. This doesnt address size limitation and placement restrictions either. The correct question is what is the best antenna for my situation, needs, wants...combined with the level of effort one is willing to put into it.
I will be addressing this question towards the bottom of the Intro soon, more or less, when going over different antenna styles and how they relate to one another. Then addressing similarly at the top of each subsection.
- adjustable brass telescoping VHF(FM) elements
- impedence matching fine tuning knob
- bandpass filters
- weird loops that look like UHF loops that Ive seen on some other models of vintage TV antennas