It promised it would be the "most cost-effective solution for the commercial radio industry, leaving more money for content and marketing". It has formed a marketing partnership with the BBC and the existing national digital radio multiplex operator Digital One, which will provide a £14m marketing budget.
NGW's bid includes two Channel 4 stations, described as an entertainment station targeting under-35s and a talk-based service, but Channel 4 surprisingly denied any knowledge of these in the following statement: "The three proposed Channel 4 branded radio stations [Channel 4 has] unveiled today are exclusive to the 4 Digital Group bid. There have been no conversations between Channel 4 and NGW and there is no guarantee that the stations will launch if 4 Digital Group's application for the second national multiplex is unsuccessful.
"We do not recognise the descriptions of the two Channel 4 radio stations in NGW's bid -- they bear little relation to any of our three proposed services and are entirely NGW's creation prepared without consulting Channel 4."
It is unclear whether the line-up of envisaged station services NGW has supplied to the press is complete in the sense that specific operators are behind particular services.
The musical line-up includes: Radio Luxembourg, described as a competitor to BBC Radio 1; 50+, described as a competitor to Radio 2; Adult/Album, described as competing for younger Radio 2 listeners; and Love Songs, aimed at a female audience.
There is also a rolling news station called Rolling News, a games and competitions station called Radio Play, and a children's station, Fun Radio.
Asian listeners will be covered for, not only by the BBC Asian Network, but also by a separate service. Again, it is unclear which company will operate this service.
Broadcaster Premier Christian Radio will provide its eponymous service and the 12th station is from Colourful, which already broadcasts talk and music on the internet to the UK's black, African and Caribbean communities.