On the back of that Absolute Radio have threatened to shut down their entire AM service unless Ofcom meet their demands, which I doubt will be refused.
https://radiotoday.co.uk/2018/02/absolu ... -shutdown/Absolute Radio proposes two steps – the first to reduce the power at 5 major AM sites by 3dB, and step two, to close 12 small AM sites, and thereafter to operate a 20 site network.
In a document to Ofcom to support its request, Absolute Radio points out the BBC is closing 13 of its 50 local AM transmitters carrying BBC local radio, and that the radio scene has changed dramatically since the national AM music licence was awarded to (Virgin) them 25 years ago. Some of the equipment in use at transmitter sites is also 25 years old and to maintain the network could be commercially unviable.
Chris Morris was making fun of the fact that Virgin Radio was launching on AM back in 1993:
https://www.youtube.com/watch?v=bLwMLkMLfOc