Matt Meola
ex KCØDXW
|
Matt Meola ex KCØDXW |
|
|
ProjectsOne of the great joys of Amateur Radio is the ability to build your own gear. Nowadays, that mostly means antennas, but there are a lot of kits available for all kinds of things. I've built a few things; some of them have turned out well, and others not too well. Most of the projects I've done are VHF antennas for 2m. On the antenna projects pages that follow, all of the radiation pattern plots were done from a homebrewed perl script that massaged the data coming from NEC2 and output a suitable file for gnuplot. You'll find two different plots used on all my pages; both the ARRL standard plot and an Effective Radiated Power (ERP) plot. The ARRL plot is great for looking at half-power beamwidth and front-to-back ratio; but for looking at the true pattern, or for comparing antennas for gain, it isn't too good. It seems to really place too much emphasis on side lobes, a result of the odd scaling that it does. An ERP plot simply uses the equation for Decibels and solves for the output power. Since all my modeling is done with Dbi, P1 becomes 1, a rather convenient number. Here are some of the projects on which I've worked:
Some other things I have either completed or have in progress:
|
