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You are repairing a guided transmission system made up oftransmitter module, coaxial link and a receiver. The receiver'serror rate has jumped dramatically recently after an electrical storm when several repairs were made to the system. The system's bandwidth B = 1 MHz and the noise density at the receiver is knownto be 1x10 to the negative 8 watts/Hz. For proper operation of thelink, the SNR db at the receiver must be at least 12 db.
a. What is the required signal power at the receiver forproper operation of the link?
b. For this SNR, what is the capacity C of the link in bits/seconds.
c. The transmitter module is specified to have an outputpower of 10 watts. For the coaxial link, what is the maximum distance allowed in kilometers between the trasmitter and receiver?
a). Develop a function with the name myAMmod to modulate the message signal. Use a carrier frequency fc=200hz. Plot the magnitude spectrum of the message signal and the modulated signal and explain the difference between them.
a positive-sequence shunt admittance y= j4.4* 10-6 S/km. for this line if it has 70% shunt reactive (inductors) compensation and 40% series capacitive compensation. Half of this compensation is installed at each end of the line.
write a program that calculates the quadratic equation. the program should be able to compute imaginary numbers (i.e. sqrt(-1)). finally, output the tow result. hint: the computer cannot directly compute imaginary numbers
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calculate the amout of mmf generated by a coil of wire having 1300 turns and carrying milliamperes of current?
A delta-connected source has a line-to-line voltage rating of 470 Vrms. Its wye-connected load has a power rating of 2125 W with a pf of .85 lagging. Find the rated phase currents.
many cell phone battery chargers operate on 2.4 volts, while others operate on 3.0 volts. The cell phone battery charger in use for this project is 2.4 volts , but it is broken and cannot charger the battery . you do, however , have available a 3...
a certain radio frequency generator delivers a power level of 12 dBm. If this signal is amplified, calculate how many decibels of gain is required to produce a power of 20 dBm.
Determine the conductivity of silicon at T = 300 K if it is doped with donor impurity atoms at a concentration of 1.25*1016 cm-3. Assume that the electron and hole mobilities are 1350 cm2 / V-s and 480 cm2 / V-s, respectively.
A 50-O lossless line is terminated in a load impedance of 50 + j 100 O. If the wavelength is 20 cm, determine (a) the complex reflection coefficient at the load, (b) the standing-wave ratio,
Write complete ionic and net ionic equations for each of the following molecular equations. a. 2HNO3(aq) + Mg(OH)2(s) ----- > 2H2O(l) + Mg(NO3)2(aq) Nitric acid, HNO3, is a strong electrolyte.
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