Even though manufacturers of handheld ham radios have been busy ... otherwise communicating between the radio and a computer, very few can use USB for power. Instead , they rely on barrel jacks ...

The change is accelerating as more and more switching power supplies are put into operation. This is a noise source that spells even more trouble for the AM band! Ham radio operators are often the ...

Nowadays, you can get into ham radio on the cheap ... With an automotive fuse block for power distribution and some power supplies, the portable rig is a fully self-contained HAM station.