I somewhere read that P.E.T. allows more then one protocols of same type at the same time.
I have PET lvl7 and it will take time to get it to lvl8. So I want to put 2(or more) lvl2 radar protocols, coz palladium collection is smooth even with lvl2 resource collector.
I have OpenStealth, but I use it to auto lock and for enemy alert, and I want to be cloaked while collecting palladium.