[Milsurplus] MCS vs MHz in Castles in the sky

[Ron.K3PID]

When was the Hertz universally adopted as the unit of frequency? I watched Castles in the Sky this morning and noted that when they were able to get to 200 MHz they actually said 200 mega Hertz. I thought MCS or MC or Megacycles was still widely used through the 50’s.


Just curious!
Ron K3PID


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