I tested this, and your research is causing all radars to use the same amount of power and scanning at the same speed. Bob's progression is 300, 450, 600, 750, 900. At max research, Big Brother 0.5.0 makes them all 975. I suspect the intended result was 975, 1462.5, 1950, 2437.5, 2925. The range research is working, though the max research has a radius difference of only 2 chunks per Bob's tier - I don't know if that was intended because it seems like a small difference relative to the range.
BTW I love this mod, being able to get radar coverage without radar spam is so convenient. Thanks!