How Do You Know What Spectrum Resolution Is Required ?
Rule of Thumb: 
Spectrum Resolution should be 33% of difference between the frequencies.
  • In previous example, frequencies of interest were:
    • 1,762 cpm
    • 1,785 cpm
    • 1,807 cpm
  • Smallest difference is 22 cpm (1,807 - 1,785 = 22).
  • Spectrum resolution should be 22/3 = 7.33 cpm/line
Why 1/3 ?
  • It means that there will be at least TWO lines of resolution between the frequencies in question.
  • This assures proper separation of the peaks.