Generic scopes are bad coke, but for the full on crack experience you need to get a **NETWORK ANALYSER**! The box is just the start at that point, because the bloody calibration loads, never mind the phase stable test port extension cables and verification kits are where the real wallet rape happens.
I bought an old HP 8753C thinking it was only £350 and I could beat the drug, next thing I know, 6GHz test set, calibrated HP reference SOL set in a cute little wooden box, several different APC-7 to more common RF adaptor sets, a Gore test port extension cable, calibrated attenuators for verification... Damn thing is getting expensive.
Regards, Dan.