Tutorials

What is “insertion loss”

Insertion loss is another one of those terms you really want to understand, and then you go to some other web site and they hit you with some totally wigged out formula like: which isn’t going…




What is a passively amplified antenna?

Right now, amplified antennas are all the rage. They promise small size and big performance, and with the right amplifier and the right situation, they deliver. However, there are two kinds of antenna preamps — active…




What is “noise floor?”

Get to know the right words and you can describe anything. We talk about “noise floor” with any sort of RF signals, because it’s an important concept. Noise, you see, is everywhere. The world is full…


What is “zero rating?”

Zero rating is a big buzzword right now. It started off innocently enough but it’s now being used in ways it was never intended. Some are calling it unfair and some are calling it a fair…




Why does everything need a power inserter?

Power inserters. Seems like they are everywhere. You’ll find them in your DIRECTV system, on an antenna amplifier, and the more accessories you have, the more you’ll find power inserters. Is this an insidious invasion, a conspiracy…