At least one operator's aircraft, engaged on low-ish level patrol, have been fitted with the Skywatch TCAS system. I don't know offhand whether that just lets the heli identify the military traffic or the jet jock gets a beep in his cockpit. In any case, the kit that fits in a 206 would be barely noticeable in a 332.
You might have heard a rumour that after picking up an approaching jet same level at 1000ft, the heli started a descent and the jet followed it down, passing quite close over the top of the 'target', which was by that time in full auto. But I couldn't possibly comment.