A Versatile channel sounding impulse response identification system using the swept-frequency method is designed at the 63.4-64.4 GHz band. The swept-frequency channel sounder offers high time and frequency resolution of 1 ns and 625 KHz respectively. The high dynamic range (70 dB) and constant power enable non-linearities to be overcome in the measurement areas lying with the coverage range of the order of a picocell.