I suggest it is X-Band, 8-12.4 GHz and modulated with square waves, triangular waves,and power swept fast. The feed arms to the feed horn to the refleftor suggest a cp modulation to linear.
Still, anybody hit with 300KW X-band won't need to visit a barber again.
With all respect, you really do not know what you are talking about. I worked at the company that builds the damn thing, and know just wee bit about propagation. O2 and H2o absorption bands are way below 95 GHz.
Oh, here is another hint to help you with the antenna design: it is a Cassegrain arrangement.