According to Peter Wright, Chairman, Department of Molecular Biology, the new NMR, referred to by the frequency at which it operates, 900 mega-hertz (MHz), will become the centrepiece of one of the ...

you need to convert the figure from either MHz (megahertz) or GHz (gigahertz) to cycles per second, measured in Hz (hertz). There are 1 million hertz in 1MHz and 1 billion hertz in 1GHz.