Advertising Age, August 20th, 2001
Fm stands for frequency modulation. That means the difference between one FM radio signal and another is based on the frequency of the waves. AM stands for amplitude modulation. This means that the height of the waves is what differentiates signals.
XM stands for ... uh ... hey, can we get back to you on that?
Evidently, the X in XM is like the X in everything else: X-sports, Generation X, XFL. 7-Eleven is even selling an X Gulp for the bladder-well-endowed. We suppose if they came up with some sort of newfangled way to photograph bones right through the skin, they'd probably call them X-r...
HighBeam Research, Free Preview: 'X + Bowie, B.B. and Snoop= satellite-radio spot success.(Brief Article)'... Full Membership required for unlimited access. Free 7-day trial.
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