The base model of that unit has a real time bandwidth of 20 MHz. Equate this to the DDC bandwidth of your Perseus/Excalibur/etc, this has a bandwidth of 10x as wide but at 75x the cost. The frequency range is very wide, but the DDC is not all that impressive. An option can take it to 80 MHz bandwidth. However, the Tektronix RSA 6120 series can go to 110 MHz bandwidth (with option, 40 MHz standard), and they tell me they will have an option out for that in a few months taking it to 180 MHz.
Of course, the RSA 6120 outfitted with the software and options I need for work just priced out at $157k, and I need 2 of them for the application.
As an aside, I have used these kinds of equipment next to things like the G39DDC, G33DDC, Perseus, Net-SDR, etc, and to tell you the truth for how we use them in the hobby they would not be worth the cost, even if it was chump change to the buyer. I have never seen a piece of equipment like this that substantially outperformed, as a receiver, something like the Perseus or the Excalibur. Sure, it can record a huge chunk of spectrum, but it does not receive an individual signal any better. And to tell the truth none of these equipments have a large advantage over the wideband display of the Excalibur series.
T!