[Milsurplus] MCS vs MHz in Castles in the sky

[W2HX]

Jim is correct, 1930 it was adopted by IEC.


>From a practical usage perspective, according to wikipedia


"The term cycles per second was largely replaced by hertz by the 1970s. One hobby magazine, Electronics Illustrated, declared their intention to stick with the traditional kc., Mc., etc. units.[8]<https://en.wikipedia.org/wiki/Hertz#cite_note-8>"


Ol?' great-great grandad would be proud!

Eugene W2HX


________________________________
From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> on behalf of Jim Whartenby <antqradio at sbcglobal.net>
Sent: Friday, March 29, 2019 5:07 PM
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] MCS vs MHz in Castles in the sky

Ron
In 1930, Hertz was adopted by the Brits (IEC) in lieu of cps, it only took another 30 years for the French standards organization CGPM to officially adopt Hertz and another 10 years or so to cross the pond; all according to our friend, Mr. Google.
See:
https://en.wikipedia.org/wiki/Hertz
https://www.iec.ch/about/history/overview/
https://en.wikipedia.org/wiki/General_Conference_on_Weights_and_Measures
Jim

I wonder why people argue over the 10% of their differences and ignore the 90% they agree on?


On Friday, March 29, 2019, 2:44:39 PM CDT, Ron.K3PID <ron.k3pid at sbcglobal.net> wrote:


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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