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Old 04-29-2008, 09:34 AM
John E. Hadstate
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Default Re: Disadvantages of using AM for DSSS/FHSS?


"Green Xenon [Radium]" <glucegen1@excite.com> wrote in message
news:48164106$0$5109$4c368faf@roadrunner.com...

> AM radio tends to be more vulnerable to unwanted magnetic
> disruptions than FM, however this only affects analog
> reception. Digital reception on AM should be unaffected even
> by the strongest-interfering analog RF magnetic signal.
> Right?


I'm not sure how. All transmission is analog until the
received signal is digitized. FM (and it's step-brother, FSK)
offer better immunity to impulse noise than AM at the expense
of spreading the transmitted power over the redundancy that
exists in their spectra.



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