Along the M1, the station can be heard on 104.2 FM from Milton Keynes to Copt Oak (near Leicester). There is no longer a MW frequency, but the station went digital on DAB in March 2013. Radio Northampton was originally available on 1107 kHz MW across the county from a transmitter at Kings Heath; this was reallocated to Virgin Radio using 1233 kHz. For the north-east of the county near Oundle, the Peterborough transmitter has Radio Cambridgeshire on DAB from a NOW Digital multiplex. The Northampton transmitter also has the Global Radio-owned regional commercial station Heart FM on 96.6FM, and has national radio frequencies.