Multiple choice

In a Direct Sequence CDMA System, the chip rate is 1.2288 $\times$ 106 chips per second. If the processing gain is desired to be at least 100, then the data rate

  1. must be less than or equal to 12.288 $\times$ 103 bits per sec
  2. must be greater than 12.288 $\times$ 103 bits per sec
  3. must be exactly equal to 12.288 $\times$ 103 bits per sec
  4. can take any value less than 122.88 $\times$ 103 bits per sec
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