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May 2nd 08, 10:03 PM
posted to rec.radio.amateur.antenna
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Disadvantages of using AM for DSSS/FHSS Spread Spectrum?
Dave Platt wrote:
In article , Cecil Moore wrote: FM usually occupies about twice the bandwidth of AM. Thanks for adding "usually" to your original statement. I was just pointing out that if the FM peak deviation is equal to the maximum modulation frequency, then the FM signal occupies the same bandwidth as AM. I believe that you're mistaken on this point, Cecil. Yep, you're right. A modulation index of about 0.6 yields approximately the same bandwidth for AM and FM. -- 73, Cecil http://www.w5dxp.com |
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Hybrid Mode
