Gaydar is believed to be considering joining 4Radio in a bid that would increase its share of digital spectrum and allow it to broadcast nationally rather than just in London.
Channel 4 was not available for comment and Gaydar declined to comment.
Separately, QSoft, which also runs Gaydar.co.uk, has announced plans to spend £2m on the creation of a social networking portal called GaydarNation, which will incorporate online lifestyle magazine RainbowNetwork.com.
The company is also set to launch a mobile dating service and expand into publishing, events and real estate shortly.
Channel 4, which broadcasts dramas such as Queer as Folk and Sugar Rush, is no stranger to gay-themed programming.
From next Monday (26 February), the broadcaster will air “Gay Week”, a series of programmes in its morning education schedule focusing on gay issues such as coming out and dealing with family members who come out.
Meanwhile, it is understood that GCap’s possible joint bid with BT and Arqiva has been abandoned. However, any of the three companies could join either the C4 consortium or the rival bid from National Grid Wireless.
National Grid Wireless is working with ex-GCap chief executive David Mansfield as a consultant for its bid, together with Jason Bryant, former development director at Virgin Radio and now chief executive of Town and Country Broadcasting, and Mike Franklin, former managing director of TalkSport.
C4 in talks with QSoft over Gaydar joining 4Radio bid
Channel 4 is in talks with QSoft Consulting, the company behind digital radio station Gaydar, on a partnership for the second national digital radio multiplex bid. Meanwhile, GCap has shelved plans to join a consortium bid with BT and Arqiva.