Some of the more modern ACMI pods have a collision warning function, but they only work cooperatively with similarly-equipped aircraft.
Tornado has RAIDS, which has a collision warning software option. Unfortunately, this was not taken up when the equipment was purchased back in 2002.
I understand that RAs will only be generated for aircraft above 1000 ft. Neither of the "Moray Firth" aicraft would have received one, had they been fitted with TCAS. On the other hand the bespoke equipment would have given a Threat Level II alert, as this was designed for the Fast Jet low level environment (200 - 5000 ft). See posting #313.
DV