1. Consider the following signal: x (t) = cos 2000лt + 2 cos 4000лt. What would this signal look like on a spectrum analyzer. Be sure to indicate relative magnitudes and frequencies. Describe the spectrum in words, e.g., "spikes at ..." If this signal were multiplied by a 1 MHz sine wave, find the spectrum of the product. (Describe in words.)
1. Consider the following signal: x (t) = cos 2000лt + 2 cos 4000лt. What would this signal look like on a spectrum analyzer. Be sure to indicate relative magnitudes and frequencies. Describe the spectrum in words, e.g., "spikes at ..." If this signal were multiplied by a 1 MHz sine wave, find the spectrum of the product. (Describe in words.)
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Transcribed Image Text:1. Consider the following signal:
x (t) = cos 2000лt + 2 соs 4000лt.
What would this signal look like on a spectrum analyzer. Be sure to
indicate relative magnitudes and frequencies. Describe the spectrum in
words, e.g., "spikes at ..."
If this signal were multiplied by a 1 MHz sine wave, find the spectrum of
the product. (Describe in words.)
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