Radar questions

I was wondering just how realistic the virtual world fighter radar is to the real thing. All the talk about radars lately has me wondering….

In FALCON 4 the Velocity Search (VS) mode has a max. range setting on the scope of 80nm (148km). Of course this is referring to the late model APG-68 radar fitted to the block 50/52 F-16C.

Real world figures I have seen for the APG-68 are 80km against a fighter-sized target, and 140km against a bomber-sized target. But there is no mention from that source to the radar mode used.

Q. Could 140-150km be a realistic VS mode max. range for the APG-68 against a larger target?

Absolute max. range figures for the APG-68 from other sourecs appear to be classified, or the usuall ‘N/A’ is often written.

Now for the APG-73. In the F/A-18E/F CSF (Carrier Strike Fighter) combat sim you can track or ‘bug’ a target in VS mode simply by designating it with the TDC (target designation cursor). When you do this the radar automatically switches to track-while-scan (TWS) mode.

Q. Is this realistic?

Also the max. VS range setting in the scope is again only 80nm.

Q. So does this mean anything with a positive closure rate OUTSIDE 80nm will not show up on the scope?

Q. Is there much difference in detection range against relative targets in VS and Range-while-search (RWS) modes?