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3G masking in spectral regrowth

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cjron

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What is 3G masking? in what way is it used in avoiding Spectral regrowth? does it have any relation with Adjacent channel power ratio?
 

Spectral regrowth is the phenomenon, when ACPR is the consequence of this phenomenom.
Meantime ACPR can have multiple causes, not only spectral regrowth (noise floor, phase noise, etc), all of them added in power.

3G system specification put some limits on the power levels of the Adjacent and Alternate channels of a transmitter, limits which make a Power Mask.
 

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