The first to benefit from "white space" internet will be residents on the Isle of Arran, who have struggled with poor broadband speeds.
Domain name firm Nominet is partnering with telecoms firm Broadway Partners to roll it out.
They claim it is the first commercial service using the technology in Europe.
The service will be available in two packages, one offering speeds of up to 25Mbps (megabits per second) and one offering 35Mbps.
There have been several trials of white space technology (TVWS) in the UK. BT ran some on the Isle of Bute and are currently running a small one in Sutton, Suffolk.
The technology has been used at London Zoo to broadcast footage of meerkats and has also been considered as a way of providing broadband at sea.
BT now believes it can get fibre broadband solutions to almost 99% of UK homes by the end of 2020, so has moved its attention to technologies such as long-reach very-high-bit-rate digital subscriber line (VDSL) and fibre to the home (FTTH).
"We think wireless and satellite will be the most likely potential solutions for the final 1-2%," said a BT spokesman.
Nominet is convinced that TVWS can play a role.
Russell Haworth, chief executive of Nominet, said: "The Arran roll-out shows that TV white space can reach places that other technologies cannot and paves the way for further deployment of this dynamic spectrum management technology."
Michael Armitage, founding director of Broadway Partners, added: "TV white space has proved its mettle, cutting through hard to reach rural forested areas on Arran which, in fixed wireless terms, is pretty much unheard of.
"This technology will be a powerful tool in the drive to deliver affordable broadband access for all communities throughout Scotland and abroad."
It will first be rolled out to residents on the west coast of Arran, with services to the rest of island following in the coming months.
Better connectivity could boost tourism, which is the main industry on Arran. During peak season, the population grows from 5,000 to 25,000.
The firms are also planning to roll out TVWS in Wales but has not said where or when.
Andrew Ferguson, editor of broadband website Think Broadband, said: "TV Whitespace has some advantages over the majority of wireless services, since it is using lower frequencies, which means it can go further and will penetrate some obstructions.
"The penalty to operating at these lower frequencies is that speeds may be slower than traditional fixed wireless services. From other trials of white space technology I am expecting speeds to be in the region of 10 Mbps.
"If you are just getting broadband for the first time or have an unreliable sub-1 Mbps service, that will feel amazing - and unlike satellite broadband will not have excessively high latency."
But he added that as people increasingly demand super-fast broadband, white space technology will be seen as only a "stepping stone" to faster technologies.

Since making his first-class debut in 2014, the 21-year-old has claimed 43 wickets in 15 matches.
Taylor produced career-best figures of 6-61 in Derbyshire's Championship loss to Lancashire last April.
"Tom is an exciting talent who has already shown the ability to win games for Derbyshire," elite performance director Graeme Welch said.
"He now has a big summer ahead and we hope he can continue to contribute to winning games for the club."

The Exiles were top of their group but the results of their first two matches in Pool Two have been wiped out.
Welsh postponed Saturday's match against Doncaster Knights because they are unable to raise a side.
The Old Deer Park side, who won the competition last season, can appeal against the decision.
A statement from the Rugby Football Union said: "The [British & Irish Cup] Organising Committee's decision was due to the uncertainty of London Welsh's future, its inability to fulfil the next two fixtures and the uncertainty as to whether the club would be able to fulfil its remaining fixtures."
Media playback is not supported on this device
For the latest rugby union news follow @bbcrugbyunion on Twitter.
Part of the wireless spectrum freed up after the digital TV switchover is being used to provide broadband services in rural Scotland.
[NEXT_CONCEPT]
Derbyshire fast bowler Tom Taylor has signed a one-year contract extension with the Division Two side.
[NEXT_CONCEPT]
London Welsh have been disqualified from the British & Irish Cup after the Championship club went into liquidation on Thursday.