Receivers

Receiver Characteristics
Adjacent Channel Selectivity

  • Ability of receiver to separate signals on closely adjacent frequencies (channels) is determined by its selectivity
  • Switching to a narrow passband can reduce interference
  • Usable passband width is determined by the bandwidth of the mode to be received, e.g:
    • 200 - 500 Hz for CW
    • 1.8 - 2.4 kHz for SSB
    • 12.5 kHz for NBFM