Wes Hayward in _Experimental Methods for RF Design_ bemoans the fact
that our transmitters are so dirty in terms of noise floor, close-in
phase noise and IMD. I see newer transmitters like the Mark V offer a
cleaner class A mode which really seems to help IMD, and read a
previous post regarding a transmitter that filters the noise floor, but
wonder if there are any homebrewers out there who are working this
problem? This seems the type of problem that we hams can and do ignore
completely, unless we are contesters or have a neighbor on the bands.

Regards,
Glenn Dixon AC7ZN