Determine the power saving in percent when the carrier is suppressed in an AM signal modulated to 80%

Ex. 1904. The 6025E NI-DAQ card allows several analog input channels. The resolution is 12 bits, and allows several ranges from +-10V to +-50mV. If the actual input voltage is 1.980 mV, and the range is set to +-10v, calculate the LabVIEW display of this voltage (mV). Calculate the percent error where PE = 100* (measured actual) / actual. ans:2

A pulse width modulated output is configured with an 40MHz clock, a prescaler of 80 and a count register of 1000. What is the frequency of the PWM signal?

An analog signal voltage in the range of 0 to 8V is divided into 16 equal intervals by a quantizer. What will be the maximum quantization error?

Write the expression for the output voltage of a balanced modulator

Create the Diode Characteristic Curve for this data values. Diode Voltage (VD) Diode Current (ID) 0.890904 9.109 0.884515 7.115 0.876023 5.124 0.86333 3.137 0.837654 1.162 0.793023 0.206975 0.779114 0.120885 0.754079 0.04592 0.695273 0.004727 0.599882 0.000118256 0.499998 0.000002487 0.4 5.2464E-08 0.3 1.39E-09 0.2 2.23008E-10 0.1 1.00568E-10 0 0 -0.1 -1.0011E-09 -0.2 -2.00211E-09 -0.3 -3.0031E-09 -0.4 -4.00411E-09 -0.5 -5.0051E-09 -0.6 -6.0061E-09 -0.7 -7.0071E-09 -0.8 -8.0081E-09 -0.9 -9.00911E-09 -1 -1.001E-08 -2 -2.002E-08 -4 -4.004E-08 -6 -6.006E-08 -8 -8.008E-08 -10 -1.001E-07 -20 -2.002E-07 -40 -4.004E-07 -60 -6.006E-07 -80 -8.008E-07 -100 -0.000001001 -200 -0.000002002 -300 -0.000003003 -400 -0.000004004 -500 -0.000005005

In a Bread Board, the rows are shorted or the columns are shorted? The BJT is operated in The Zener diode may have a breakdown voltage from about mode. Transistor has doped regions. Which one is the full form of DMM? In forward region Zener diode Clipper Circuits When the diode is connected across a voltage source with positive polarity of source connected to P side of diode and negative polarity to N side, then the diode is in A rectifier converts an In Full-wave bridge rectifier how many diodes are needed? condition. signal into a signal.

The main types of field effect transistor are JFET and MOSFET b. UJT and FET O C. BJT and FET O d. None of the above

b) Draw a fully labelled block diagram of a demodulator suitable for DSB-AM, DSB-SC, and SSB signals. Explain briefly it's operation, and why a simple diode detector would not have been suitable.

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