Systems like TAWS(the “too low, terrain” alarm) aren’t in aircraft of that era. The best you’re going to get is a red light that turns on when the radar altimeter gets below whatever you set the bug at. The F-5 was made to be a simplistic and cheap plane to export to US allies/puppets, so unless they modernized the systems it might not even have that. A recent-ish picture from inside an IRIAF F14 cockpit I saw looked like it had original avionics, so it doesn’t seem likely.
Systems like TAWS(the “too low, terrain” alarm) aren’t in aircraft of that era. The best you’re going to get is a red light that turns on when the radar altimeter gets below whatever you set the bug at. The F-5 was made to be a simplistic and cheap plane to export to US allies/puppets, so unless they modernized the systems it might not even have that. A recent-ish picture from inside an IRIAF F14 cockpit I saw looked like it had original avionics, so it doesn’t seem likely.