[ARC5] Nomenclature Nuances

Leslie Smith vk2bcu at operamail.com
Sun Apr 24 17:39:43 EDT 2016


Well Mike, I want to congratulate you for following a convention
precisely.

Precision of this type simplifies many things, and reduces the
possibility of error.
Moreover it costs nothing.

In the past I wrote about the common error of denoting MegaHertz as
"mHz".
Offenders will excuse their incorrect notation, saying,  "The meaning is
obvious".

This point is often correct, but recently I notice the error widening,
where I see mH  used to denote one microHenry and at this point the
error opens the door to serious misunderstanding.   Richard Feynman
would NOT approve!

I notice you make your correction delicately!
Well done!  

   73 de Les Smith
   vk2bcu at operamail.com

On Mon, Apr 25, 2016, at 06:34, Mike Morrow wrote:
> Jack wrote:
> 
> > Oops, that should have been SCR-274N.
> 
> Well...picking nits...there has never been a "SCR-274N".  It is correct
> only as "SCR-274-N".  The popular ham custom of omitting the hyphen
> between 4 and N violates the standard taxonomy and application of the
> pre-JAN Signal Corps nomenclature system. 
> 
> Similar:  Incorrect BC-348R vs. BC-348-R.
> 
> Hyphens are so inexpensive that there seems to be little profit from
> economizing on them where they are wanted.  :-)
> 
> In contrast, in JAN-land the opposite convention is used.  Nomenclature
> for a modified component or system like
> 
> R-23A/ARC-5 or R-148/ARC-5X
> 
> is incorrectly expressed if a hyphen is inserted as in
> 
> R-23-A/ARC-5 or R-148/ARC-5-X.
> 
> Of course...the earth won't stop spinning...but imagine how much more
> effective and efficient web searches for equipment would be if proper
> nomenclature format had been used everywhere.  Impossible dream!
> 
> Mike / KK5F
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