Path: utzoo!hoptoad!uunet!nuchat!flatline!splut!jay From: jay@splut.UUCP (Jay Maynard) Newsgroups: alt.flame Subject: Re: Platygaeanism Summary: Doesn't JPL teach their employees anything?? Keywords: platygaeanism, am & fm Message-ID: <347@splut.UUCP> Date: 27 Jan 88 12:18:12 GMT References: <5204@elroy.Jpl.Nasa.Gov> Organization: Confederate Microsystems, League City, TX Lines: 20 In article <5204@elroy.Jpl.Nasa.Gov>, jbrown@jplpub1.jpl.nasa.gov (Jordan Brown) writes: > Aircraft radios are FM. Note that they fall ABOVE the FM band (which ends > at 108 MHz, where nav freqs begin). When I tune my sloppy air-band radio > to the very low end of the air band, I get the station at the top end of > FM, so they use the same encoding scheme - FM. This doesn't mean anything. The modulation technique used is independent of frequency. There's nothing that says that you can't use AM above (well above the AM broadcast band. You can hear that FM station on your 'sloppy air-band radio' BECAUSE it's sloppy. You're taking advantage of a phenomenon known as 'slope detection'; the full explanation is probably too technical for you, but suffice it to say that if you had a decent air-band radio, you probably couldn't do that. -- Jay Maynard, K5ZC (@WB5BBW)...>splut!< | GEnie: JAYMAYNARD CI$: 71036,1603 uucp: {uunet!nuchat,academ!uhnix1,{ihnp4,bellcore,killer}!tness1}!splut!jay Never ascribe to malice that which can adequately be explained by stupidity. The opinions herein are shared by none of my cats, much less anyone else.