Rca1948FrequencyModu.. - The New Jersey Antique Radio Club

FREQUENCY-MODULATION FIELD TEST 135uously rise with frequency. However, de-emphasis of the high frequenciesprevents that from happening. The effect may be furtherunderstood by referring to the section on pre-emphasis and deemphasis.It will be noted that the noise on the desired station causedby the undesired station varies inversely with the deviation ratio.Here again the theoretical advantage of FM was obtained in our fieldtest.Qw«w wQ2 40E>awp 30wwow Xenw20uQ 10w«w wQs