Another thing to consider though, and this isn't meant to be a rebuke to what you're talking about, because I agree with all of that. but when people discuss "dirty RF output" or spurs on harmonics, it's not always in the context that they're being good natured for cleanliness of the RF spectrum. If your radio has an output rating of 10 watts lets say,.. You'll put it on a meter, and sure enough you get 9.8-10 watts. Checks out,.. That meter detected a NET output wattage squirting out of the antenna hole.. But if you've got a dirty radio, it may be the case that some substantial portion of that RF output isn't even on the desired frequency. It takes wattage to power those harmonics as well,... So for selfish reasons, you may not want a dirty RF emitting radio because your effective radiating wattage might be inefficient. You might be getting 70% power where you want it, and 30% on spurs many harmonics up and down the spectrum..