The “M ercury” radio receiver, specifically referring to Radio
M ercury, a UK-based local radio station, was introduced in 1984
in the United Kingdom . It began broadcasting to Surrey
and W est Sussex on October 20, 1984. The station’s
initial frequency was 1521 kHz (197 m etres) M W and
103.6 FM (97.5 FM in Horsham ).