County Sound Radio was an Independent Local Radio station covering Surrey and north-east Hampshire in the United Kingdom. One of its closing forms in 2012–2014 formed Eagle Extra occupying 1566 MW following an internal split between older and newer music/features into two allied stations in 1988 and an incomplete takeover by Mercury FM then sale leaving a third station, that of Mercury, with enhanced coverage of this area and its successor Heart Sussex and Surrey. The post-1988 branch of the radio which was rooted in recent music, concerts and events in the area including for a younger audience alternated between three FM frequencies ; in 1996 it relaunched as 96.4 Eagle Radio.