Back in the days when we had an air force, there were quite a number of these communications squadrons
I can remember when our, because I used to fly it, station Anson was nicked by 3 Group when they formed their 3 Grp Communications Flight.
This meant that the 3 Grp stations had to bid for an aeroplane if they had a reason to need it.
3 Grp staff, however, had no problem.