Disadvantages of using AM for DSSS/FHSS?
Hi:
Most cell phones and wireless internet routers, modems, and access points that use spread spectrum usually broadcast and receive their data on FM-radio waves. Just out of curiosity, I ask, why not use AM?
Let's say a DSSS/FHSS type of spread-spectrum is transmitted and received using the AM radio waves in the UHF spectrum [i.e. spread info for transmission throughout the UHF band and receive AM radio waves throughout all UHF frequencies]. What would be the disadvantages of this?
Normally DSSS and FHSS are transmitted/received on FM radio waves. So I ask what would be the disadvantages of using AM instead of FM for this?
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?
Thanks,
Radium
read more and respond »Posted 5 years ago by Green Xenon [Radium] in Wireless Networking
