Doesn't the AWG 9 out range the F-18's radar significantly? Can our AWACs see farther than that and link targeting data to the F-18's?
Let's not allow the Tomcat mythology spin the AWG-9 into something that it never was.
It was designed specifically to be a long range, continuous-wave radar to illuminate big Soviet bomber formations so the AIM-54 could go get 'em at long range. It had the necessary capabilities to do that well: it had the power to see large non-maneuvering targets at long range, it had the capability to track several of them and illuminate them with enough energy to send multiple Phoenixes in their direction with enough accuracy such that the radar on board the missile could see the target when it got to the point in the intercept that it turned its own radar on. It could also see and intercept the big, low-flying anti-ship missiles of the 1970s which were fast movers but essentially non-maneuvering.
Some of those capabilities adapt themselves to closer, smaller, maneuvering targets (like fighters) and some of them don't. Dealing with maneuvering targets and having the precision to guide a different active missile (like the AMRAAM) to those targets is a different discipline.
If the AWG-9 were such a superb air intercept radar, then we wouldn't have seen it replaced by/modified into the APG-71 (by basically replacing all of the internal "brain" with the APG-70 system out of the F-15E) when they performed the F-14D upgrades in the early 90s. Just like the Tomcat airframe itself,
it was great for its time in the 70s and 80s, but has long since been surpassed by the capabilities of newer 4th gen fighters.
So...with respect to range. Yes, the AWG-9 could see big targets at long range -- longer than most other air intercept radars, even to this day. If you are going to yardstick it against the APG-65 in the Hornet, you have to simply look at the size of the dish on the front of the jet to know which aircraft can see further; bigger is better. The Hornet has a smaller nose in diameter than the Tomcat, meaning the Tomcat can have a bigger dish. This is the same comparison between the F-15 and F-16, where the F-15's larger nose allows the APG-63 and 70 to have a larger dish than the APG-68 in the Fighting Falcon -- the result is that Eagles can see further than Vipers in practice. The AWG-9 also had a truckload of power that it could put out in continuous-wave illumination on its own frequency. Let's recall that when it comes to RF energy, you can either put a lot of energy on a narrow beam or a little energy on a wider beam. There can be benefits to that under specific circumstances, but that capability can also be very limiting in other applications. I think the fact that current AI radars don't (need need to) put out a truckload of energy out on one specific beam (thanks to digital processing) is validation that the AWG-9's techniques are pretty obsolete.
That long range, though, isn't in and of itself such a valuable asset that it makes or breaks an AI radar. Other capabilities -- such as the ability to maintain locks on maneuvering aircraft, or resistance to electronic attack, or the ability to see low observable "stealth" stuff -- are far more important than just being able to see a long way.
So...bottom line...AWG-9 was great in its day at what it was designed for, but don't fall into the fanboy trap of thinking that means that it is the greatest thing evar and will remain so into eternity.