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For a mobile receiver travelling at 120km/h and receiving at 850MHz. (a) Sketch the Doppler spectrum if a continuous wave (CW) signal is transmitted if

For a mobile receiver travelling at 120km/h and receiving at 850MHz.

(a) Sketch the Doppler spectrum if a continuous wave (CW) signal is transmitted if and indicate the maximum and minimum frequencies.

(b) What are the conditions for maximum and minimum Doppler spread for a particular frequency and speed? What are the expressions/values for the maximum and minimum Doppler spread.

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