early in this mod's development i did initially plan to support both of krastorio's radars with each radar prototype having its own channel even, but it would have needed a circuit connector and the flat one i had for the normal radars doesn't fit nicely on the sentinel so i dropped that, and the different channels were dropped in order to not break the circuit logic by up/down grading radars.
i am open to support the sentinel if someone contributes a circuit connector definition that looks good for them.