Some questions about radars

[Joaoperru]

Ok guys:
We've got 2 radars here: one to scan the surface of the sea and one for airplanes.
Now i've got some questions about them, and i would like any of you posted here his own doubts regarding radars:

1) The so called radar position in the conning tower manage just the surface radar? Because if i got the air radar that position is of no use.

2) How do you understand if the contacts the radar man cry out are surface of air ones?

3) Let's talk about the radar station: the radar on the right gives you an idea of the position of the object (azimuth+rough range), while the one on the left it's somewhat finer regarding range? And to get the spike on the left one i have to illuminate the target with the right one?

Thanks