RWR only provides a rough figure. You need DTOA and interferometers for high accuracy.
For example, RWR should be accurate to 10-15 deg at 200Km. Whereas with interferometers, you can get even less than 0.1 deg at 200Km. Strictly speaking, interferometers are good for anything.
I'd like to make a correction in my previous post 'cause it's quite wrong.
DTOA helps find bearing and angle. Does not find range.
Interferometer helps find range, bearing and angle.
On AEWC&S, you have the locations on the image you posted in post 911.
When it comes to fighter jets, as of now only Rafale has this capability operational and combat tested. The F-35 is still getting there.
The way Rafale works is quite unique. It has RWR and interferometers which provides very high accuracy on its own. But for much more accurate data, a group of Rafales act together as each individual antenna in a process called multilateration. This technique is also used by navigation satellites. So a group of Rafales will provide far more accurate passive data than an AWACS can. So, for fighter jets, only interferometers are enough along with the RWR.