There is an old saying, Tektronix makes good scopes, and HP makes good RF equipment. Don't cross that line.
That has been proven time and time again, although I have to admit I do have a combination scope/logic analyzer from HP that I find mostly-tolerable.
We have a client that purchased two Tek RSA5000B's spectrum analyzers optioned out for digital TV measurements a few years ago. I absolutely hate them.
--- Jeff WN3A