Calibrating low cost Software Defined Radios like the r820t

  1. Local LTE carriers are carefully frequency corrected.  You will see a quiet spot in the energy right in the center.  Example: 737,000,000 Hz
  2. TV Carriers have a ATSC pilot that is very distinct and easy to tune to.  Examples: 470,309,441 Hz and 174,306,000 Hz

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