It's possible to THINK you have the SJ radar but you don't. Early in the war it becomes available for PURCHASE and if you have enough renoun you can buy it. It shows up in Damage control as a "KIT." However, it's not REALLY installed yet which doesn't happen until Sept '42. Until then the switches and control panel controls remain disabled. When the radar fianlly gets installed (without further action on your part, but just being at port at or after the enable date) your radar switches will start working.
Note: when that happens, use the switches with great care. They are more complicated than it appears and it's possible to accidentally disable the radar completely until you restart the game.
Note2: what I described is default game behaviour. Your experience with mods might differ.
Peabody: In the stock game the cease fire and radar buttons are not switched around and the HOLD FIRE button will function properly. Looks like you have a mod problem.
-Pv-
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