Originally Posted by
Sallyann1234
The antenna in the photo has every characteristic of an OTH radar.
The Su57 is a supposed fifth generation stealth aircraft equivalent to the F22 and F35.
Yes it looks like an OTH array. However,
The Jindalee radar has arrays measured in kilometers and the Ausies started their programme since the 1980's and even earlier with input from the Brits and Americanss and are still developing' it.
I worked on the signal processing programme in the late 90's.