Are you intimidated by Smith Charts. I would be too except that when you understand the premise, they are not only plain to use but very helpful in understanding the interactions of physical attributes relevant to electro-magnetics and distribution to the atmosphere. This animation video will walk the beginner through Smith Charts. Prerequisite knowledge required…
Month: May 2021
Go-Kit Battery Protection
So you are putting together a go-kit with a go-kit battery. I never learned to spell very well so maybe you can help me. How do you spell the word F-I-R-E? It can happen to you with the very powerful Lithium-Ion battery technologies available today. Here is the next question of the day: Do you…
A Go-Bag Battery
Every amateur radio operator ought to have a go-bag. That is, a bag that the amateur can pick up on a moment’s notice, go out into the field with it, and begin transmitting after setting up his or her station. One of the elements of a go-bag is an energy source. But what should you…
Ever Wonder How the J-Pole Antenna Works?
Have you ever wondered about the J-Pole antenna and been intimidated by it trying to figure out how it works? There is a principle that you should always keep in mind when looking analytically at any antenna for the electromagnetic spectrum: they are all merely dipoles in disguise! When you hunt around on the web…
Radio Rocks – by Dave Foster, W3IGT
At the April monthly meeting of the Cascades Amateur Radio Society, a presentation was given by one of our members, Dave Foster (W3IGT), who is a retired geologist. Dave has been in the salt mines underneath Detroit! The title of the presentation was “Radio Rocks.” Sadly, Dave did not wear his Elvis impersonation suit for…