■ Center Spread
Spectrum is spread (modulated) by centering on the frequency in modulation off.
Radiation level
Modulation width 3.0%
−1.5%
+1.5%
Frequency in modulation off
Center spread example of ± 1.5% modulation rate
■ Down Spread
Spectrum is spread (modulated) below the frequency in modulation off.
Radiation level
Modulation width 3.0%
−3.0%
Frequency in modulation off
Down spread example of − 3.0% modulation rate
MB88151A
Frequency
Frequency
Document Number: 002-08311 Rev. *B
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