Unformatted text preview: EELSSSZ Maltreué FM (er PM)‘ Input cos In]. I Frequency multiplier Frequency converter Block diagrams of frequency multiplication and frequency
conversion. To power amplifiers
Ind antenna Frequency
multiplier, x uI Frequency
phase modulator Narrowband
frequency modulator Block diagram of an indirect (Armstrong) FM transmitter. An Armstrong-type FM system to handle an input with maximum frequency content of
3.3 kHz ﬁrst generates an FM signal with B = 0.20 (constant), fc = 5 MHz. The de-
sired output is required to have a carrier frequency of 30.0 MHz. Using one XS fre-
quency multiplier and one frequency mixer (plus one required bandpass ﬁlter to follow
each), devise two different system conﬁgurations to accomplish the desired objectives.
Specify all frequencies and bandwidths in your diagrams. ...
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- Fall '09