Jane O'Hara leaves Rajar amid conflict with Wireless Group.(Rajar managing director Jane O'Hara is resigning)(Brief Article)

Rajar, the radio audience body, has announced that its managing director is leaving.

Jane O'Hara will stand down from the role in December after three years overseeing the measurement of radio audiences.

O'Hara is leaving to spend time sailing in the Atlantic. Rajar has advertised for a replacement to be in place by the New Year.

Rajar, jointly owned by the BBC and the Commercial Radio Companies Association, has had a stormy few months in which it has endured a series of attacks from Kelvin MacKenzie, the chief executive of The Wireless Group.

MacKenzie wants Rajar to drop its diary-based system …