FM
from
The Collaborative International Dictionary of English v.0.48
FM \FM\ n. [Frequency Modulaiton.]
A method of transmitting radio signals by modulating the
frequency of the carrier wave; -- opposed to AM (amplitude
modulation), in which the signal modulates the amplitude,
rather than the frequency of the carrier wave. [acron.]
Syn: frequency modulation.
[WordNet 1.5 +PJC]
from
Jargon File (4.4.4, 14 Aug 2003)
FM
/F.M/, n.
1. [common] Not `Frequency Modulation' but rather an abbreviation for
`Fucking Manual', the back-formation from {RTFM}. Used to refer to the
manual itself in the {RTFM}. "Have you seen the Networking FM lately?"
2. Abbreviation for "Fucking Magic", used in the sense of {black
magic}.
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