Amateur Extra › E8 Signals and Emissions › E8B09
E8B09
What is deviation ratio?
Pick an answer to check it.
Answer: B. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency
Deviation ratio is the maximum carrier deviation divided by the highest audio modulating frequency. It is the worst-case modulation index for a system.
Tip: Deviation ratio = max deviation / highest audio.