The receiver in a modulated system must the carrier signal to obtain the data signal. a) add. b) multiply. c) subtract. d) divide.
The receiver in a modulated system must multiply the carrier signal to obtain the data signal.
Answer: b) multiply
The receiver in a modulated system must the carrier signal to obtain the data signal. a)...
A modulated broadcast signal which has been modulated consists of a a) carrier signal. b) data signal. c) carrier and data signal. d) frequency and amplitude signal.
A carrier signal c(?) = ? cos(??) is modulated by a single-tone signal ?(?) = ? ???(??) to form the AM signal: s(t)= [? + ????(??)]???(??), where ? = 10, ? = 2, ? = 1000 ??, ? = 50 ??. a- Obtain an expression for the sidebands of ?(?). b- Sketch ?(?) c- Sketch the spectra |?(?)|, |?(?)|, |?(?)| against f. d- Calculate the modulation index (m) e- What bandwidth is required to transmit the AM signal. f- Show...
Please show all work with the answer. Thank you! P1 - A function generator can be angle modulated with various waveforms. With a carrier signal being a 300-Hz sinusoid before modulation is applied, the output modulated is T1-e-2t Determine (a) instantaneous signal phase and (b) instantaneous signal frequency (radian and cyclic). (c) Sketch the forms of the instantaneous signal phase and frequency. P1 - A function generator can be angle modulated with various waveforms. With a carrier signal being a...
-44 Q1): For the signal below, Sketch the AM modulated signal where: . u=1 Carrier = 4 cos(6000t) A Time |-1 t What is the problem with this modulated signal? 7 i B 1 FF T: III III C Activate Win
An AM signal in which the carrier is modulated 70% contains 1500 W at the carrier frequency. Calculate the power content at the carrier when modulation percentage drops to 50%.
Consider an FM system where the modulated signal iss(t) = 10 cos2fct+ 2kfZt0m()dwhere the carrier frequency isfc= 100 MHz. The modulation signal ism(t) = 10 cos(2fmt),wherefm= 3 kHz
Let a modulated signal be: s(t)=100cos(2100st) +100cos(2000xt) + 100cos(1900xt) where unmodulated carrier is c(t)=100cos(2000xt) where the carrier amplitude is Ac=100V and the carrier frequency is fc=1000Hz (6=2000m). a. Find the complex envelope g(t) for the modulated signal. b. Whaktype of modulation is involved? What is the modulating signal m(t)? c. Evaluate and draw the Power Spectral Density P.) of the modulated signal. d. Find the average (normalized) power P for this modulated signal. e. Evaluate the actual Peak Envelope Power...
9. Carrier signal in a double sideband -carrier band system, c (t) = Acos (2nfct) and the message signal m(t) = sinc (t) +sinc (t) Find the frequency domain expression and bandwidth of the modulated signal.
A 1.5 MHz carrier frequency is amplitude-modulated by a 200 kHz sinewave audio signal. The bandwidth would be A. 40 kHz. B. 405 kHz. C. 4,000 kHz. D. 400 kHz.
A 1,000 kHz RF carrier is amplitude-modulated by a 5,000 Hz sinewave signal. The upper sideband frequency would be A. 1,005.5 kHz. B. 1,005 kHz. C. 1,010 kHz. D. 995 kHz.