Foundations Of Amateur Radio

Foundations of Amateur Radio The other day a whole new world opened up to me when I came across the idea that Voltage is the same as Force and Current is the same as Velocity. It all came about when I installed two mechanical filters into my radio. You heard that right, in my shiny solid-state radio, I added moving parts! The purpose of this was to improve the way the radio ignores unwanted signals and as a result has an easier time hearing what it is you really care about. The radio already has filters built-in, but mechanical filters offer a cleaner output with less distortion across a wider range of temperatures. Another way is to say that - mechanical filters have a much higher Q. Think of a pendulum swinging through oil, it's losing lots of energy for every swing and has a low Q. The same pendulum swinging through air retains most of its energy and has a high Q. The same is true for mechanical filters, less energy loss, better reproduction, better outcome for the things you want to keep and hear. So