Digital communication

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Across
  1. 2. bandwidth occupied by FSK
  2. 3. transmission have better noise immunity
  3. 4. sequence of the large bandwidth is multiplied with narrow band data signal
  4. 5. noise sequence is a noise like high frequency signal
  5. 6. communication systemms more flexible
  6. 7. are repeated symbols
  7. 9. gain is the ratio of spreaded signal bandwidth to unspreaded signal bandwidth
  8. 10. probability of DPSK is higher than that of BPSK
Down
  1. 1. Bandwidth of BPSK system is 2fb
  2. 2. and processing becomes easier due to digital communication
  3. 6. requires wide band channel with small phase distortion
  4. 8. spectrum makes antijam