On Fri, 16 May 2008, Count Floyd wrote:

On Fri, 16 May 2008 21:48:37 UTC, "Antonio Vernucci"
wrote:

Megahertz is defined as MHz, kilohertz as kHz and hertz as Hz. It is,
in fact, ALWAYS a capital "H" to pay homage to Mr. Heinrich Hertz.
Consider: http://www.ideafinder.com/history/inventors/hertz.htm or,
http://searchnetworking.techtarget.c...214263,00.html
or, http://tf.nist.gov/timefreq/general/glossary.htm (click on "M" or
"J-K" - these folks should know the difference)

I have a different understanding. Hz is written with a capital H not to pay
homage to Mr. Heinrich Hertz, but more simply because all measurement units
begin with a capital letter.

Homage was instead paid to Mr Kelvin when they decided that the capital K is
assigned to the temperature measurement unit (kelvin degree) instead than to the
1000 multiplier. This explains why kilohertz is written with a small k, an
exception to the general rule that all multipliers have a capital lettere (kHz,
MHz, GHz, THz).

73

Tony I0JX.
I still use kilocycles and megacycles, that is because my boatanchors
have the words on the dial faces!


Of course, if we're nitpicking, there's no such thing as kilocycles and
megacycles. They always needed the "per second" attached to them in order
to have meaning, since otherwise you'd not know what time period the
million or thousand cyles appeared in.

When Hertz was brought in as a replacement, the ambiguity went away
since Hertz mean "cycle per second".

Michael VE2BVW