I think we heard the tail end of this on Guard between the (chopper) pilot and D&D. If it was the case then:
The helicopter had transmitted on the wrong frequency
was actually an inadvertent, or system malfunction, emergency squawk. I'll leave any more details of the RT conversations out, it was a fairly low key discussion, but "something" had clearly happened to trigger it (2 FJs alongside
?).
And whether such an event / scramble merits a supersonic transit, or maybe someone was a little enthusiastic with the left hand, I'll leave to those in the know
NoD