Thank you for answers.
Anyway, when I click on Radar section icon it transfers me to radar room but both radars don't work ( I don't see this
on radars windows). I have SD radar on my sub, the first one which you can fit on sub when you start carrer in 1941 year. The "Turn on/off" radar icon is greyed, I can't turn it on but from time to time my radar man gives me surface contacts. Very strange.