Oscilloscopes are insanely expensive

AWOL:

usually handle 1-100mhz (careful, some are in the khz range)

kiloHertz would still be a million times better than milliHertz :wink:

'mhz' isn't millihertz at all, it's an incorrect symbol. 'mHz' is millihertz, 'MHz' is megahertz.