Aim 120d is also 180km. It will require an upgrade though on F4Es. Radar upgrade is not necessary if Awacs data link is used by F4Es and missiles are guided by data-link. The equalizer here is awacs flying in Romania which cannot be shot down by Russia to not to get into conflict with nato. It will make F4s see Su35 first and shoot first.
Russia cannot fly awacs close to front lines for a long time after several of them were downed a year ago by Ukraine. Ukr airbases can be bombed by Russians and F4 planes will be downed for sure so the planes can be transferred by batches like 50 each until the planes are lost a new batch can be transferred to Ukraine from Poland or nearby countries.
They wont work on eastern regions yet but they can still provide some degree of air control over Kherson and Zaporizia regions with the awacs equalizer where Ukr counter attacks can happen successfully after air control over those areas. Most F4s are in high numbers and are in fliying condition in nato country inventories. They can be upgraded to bvr standards. Unlike Mig-21 the F4s were designed with a bvr consideration.
