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What is the point of amateur radio? To learn about radio, propagation,
the electromagnetic spectrum in general. To understand how it works,
and maybe even build or modify your own equipment. The license, after
all, is the only legal way to use the electromagnetic spectrum at
interesting power levels.
In order to learn we must be able to inspect; To tinker, or at the
very least have access to a specification we can build from.
Some amateur radio operators seem to complain that people don’t build
their own radios anymore. That they just buy a box and antenna and are
now consumers. This is not what I’m talking about here. First, you
know in principle how your radio works. And you could build one that
could replace it. Would it be as good as a modern fancy rig? Of course
not. It wouldn’t be as good, but you could build one, and you could
use it just as well as the bought one.
And if you learn enough, and tweak enough with the rig and antenna
system, you could build something better for your particular
environment.
When I first learned that
D-Star used a proprietary
voice codec I couldn’t understand Continue reading