Foundations Of Amateur Radio

Foundations of Amateur Radio This week I spent several hours in a park with a mast, guy wires, some coax, an antenna analyser, copper wire, a balun, cable ties and a pair of pliers, not to mention a tape measure, a calculator and several experienced amateurs. We set out to create a linked dipole antenna for a portable activation that we're working on. If you're unfamiliar with the concept of a linked dipole, it's simple. Imagine a dipole for 10m. It's about 5m long with a connection to the feed in the middle. At each end of the dipole is a connector of some sort - in our case, just some bare wire while we were building the contraption - and then some method of joining a piece of wire, in such a way that you can either opt to have the bits electrically connected, or just physically. If you repeat this, then you end up with a normal dipole that's made up of segments that you can either connect or not. This means that when a segment is connected, the dipole becomes resonant on a lower frequency, since the el