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Old 04-03-2016, 10:13 AM   #10
NN5I
Carl, nn5i
 
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Join Date: Sep 2011
Location: Tallahassee, FL
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Quote:
Originally Posted by ke0me View Post
one turn moves the center freq 250 KHz (or is it kHz).
It's KHz. The international convention is that you use an upper-case letter for multipliers that are greater than one, and lower-case for multipliers smaller than one. This helps distinguish, for example, between the abbreviations M for the Mega prefix (multiply by a million, greater than one) and m for the milli prefix (multiply by 1/1000, less than one). Similarly P for Peta (a quadrillion) and p for pico (a trillionth); D for Deka (10) and d for deci (1/10). There are other such pairs (Yotta and yocto, Zetta and zepto), but we don't see them much in Amateur Radio.

For prefixes like Kilo this is not universally followed (no smaller-than-one prefix starts with k), and some authorities say the convention doesn't actually exist and the short form for kilo is k. Pooh.
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