Quote:
Originally Posted by ke0me
one turn moves the center freq 250 KHz (or is it kHz).
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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.