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Rework Prob. 8-10 if the TV station operates on Channel 42.
Prob. 8-10
A digital TV station transmits on Channel 7 with an ERP of 18 kW. The signal from this TV station is received 50 miles away via a LOS path with a receiving antenna that has a gain of 8 dB on Channel 7. Calculate the power at the receiving antenna output-connector in:
(a) dBm units.
(b) in dBmV units across a 75 ? load.
(c) in μV across a 75 ? load.
There is a generator with internal resistance, 50 Ohms. A matching load of 50 Ohms is connected for max power to be extracted. There exists 2 other resistors which do not equal to 50 Ohms; one resistor is small, one resistor is big.
An interface may be physical, involving a connector, or logical, involving software. Explain the difference between physical and logical and give examples.
Consider a bank of three single-phase two-winding transformer whose high-voltage terminals are connected to a three-phase, 13.8 kV feeder. The low-voltage terminals are connected to a three-phase substation load rated 2.4 MVA and 2.3 kV.
question 1ziegler-nichols open loop tuningoften when working with a faster loop many people will opt only for a pi
An analog repeater section consists of an amplifier with 15 dB noise figure, followed by a coaxial cable with a loss of 40 dB. Show a) the required gain of the amplifier b) The equivalent noise figure of the repeater section
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The 12 Volt automobile battery in the figure has an output capacity of 270 ampere-hours (Ah) when connected to a head lamp that absorbs 65 watts of power. How many hours can the battery power the headlight
Need for radical future plans to alleviate the very real problem we are faced with in New Zealand and address this problem, by providing an answer to Transpower
An op-amp is connected in an inverting amplifier configuration with a voltage gain of -80 and is biased at ±5 V. If the output saturates at ±4.5 V, what is the maximum rms value of an input sine wave that can be applied without causing distortion ..
Assuming that a 12-bit ADC channel accept analog input ranges from 0 to 20 volts, determine the following a) number of quantization levels b) step size of the quantizer or resolution
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A frictionless piston-cylinder device contains 16 lbm of superheated water vapor at 40 psia and 600°F. Steam is now cooled at constant pressure until 70 percent of it, by mass, condenses. Determine the work done during this process.
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