Communication Systems · Physics · MHT CET
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MHT CET 2020 19th October Evening Shift
A carrier wave of peak voltage 16 V is used to transmit a signal. If the modulation index is $75 \%$, the peak voltage of the modulating signal is...
MHT CET 2020 16th October Evening Shift
In communication system, a repeater is used to extend the range to transmission. It is the combination of
MHT CET 2019 3rd May Morning Shift
In amplitude modulation, the amplitude of carrier wave is $A_c$ and that of the modulating signal is $A_m$. In practice, the ratio of $A_m$ to $A_c$ i...
MHT CET 2019 2nd May Evening Shift
In frequency modulated wave
MHT CET 2019 2nd May Morning Shift
A layer of atmosphere that reflects medium frequency radio waves which is ineffective during night, is