Reuters reports here:-
"Broadcast transmission provider Arqiva is exploring options to refinance its 3.4 billion pounds of debt raised when Macquarie acquired National Grid Wireless in 2007, sources said on Thursday."


Arqiva's "Heritage" page  tells the convoluted story of how BBC Transmitters and The ITA, via NTL, CTI, DTels, NGW, Macquarie Communications, BT Satellite- eventually became Arqiva.

Its major customers include the BBC, ITV, Channel 4, Five, BSkyB, Discovery, CNN, ESPN, Vodafone, O2, Orange, T-Mobile, mobile provider 3 and the emergency services.

Reuters Reporter Claire Ruckin; Editing by David Cowell.