Out of interest, does OFCOM have the power to revoke the licence for broadcasting in the Channel Islands or the Isle of Man?
Manx Radio only very recently came under control of Ofcom, though it predates UK ILR by about nine years (1964). The Channel Is ILR stations have always been licenced by the RA/Ofcom.
The Channel Islands are completely controlled by Ofcom. However, the Isle of Man is slightly different. While Ofcom looks after day to day licensing issues, it does not make decisions such as whether or not the Island should get a new license, etc. Those more senior decisions are made by the Isle of Man Communications Commission.
Broadcasting
is
regulated by OfCom in the Channel Islands. This stems from an Order in Council made when Channel Television was first franchised which extended the powers of the UK Broadcasting Acts to the Channel Islands. Presumably the States in both bailiwicks agreed to this.
Telecommunications is not regulated by OfCom, but by regulatory bodies in the islands.
WT and RT such as PMR etc are regulated by OfCom, but only so far as the States have agreed that this should be the case.
OfCom remains responsible for international relations, frequency clearances etc, and of course relations with the French.
Don't forget the legal standing of the Islands; they are Crown Dependencies, not Dependent Territories. The distinction being that the Islands are in the feudal gift of the Duke of Normandy, i.e. The Queen. The Islands are responsible for their own administration, and defence, but not for international relations. Its the issue of international relations that usually brings to bear top level regulation over radio frequency matters and broadcasting.