4. Two resistors, 25 kN and 75 kN are at room temperature (290 K). For a bandwidth of 80 kHz, calculate the thermal noise voltage, (a) for each resistor, (b) for the two resistors in series, and (c) for the two resistors in parallel.
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- Calculate the noise voltage generated by 5 kilo ohms, 10 kilo ohms and 15 kilo ohms, resistors connected in series and in parallel. Given that the temperature is 55 degree Celsius, and noise bandwidth of 95 MHz.A wireless communication system has a trasmit power Pt = 10 mW. Through extensive measurements, the path gain of the system at the reference distance is determined to be -32 dB, and the path loss exponent to be 3.8. Using the simplified path loss model, find the received power in mW at distance 200 meters from the transmitterWhat is the bandwidth of the system?
- Suppose the noise power at the input to a receiver is 5 nW in the bandwidth of interest. What would be the required signal power for signal–to–noise ratio of 30 dB? full solution thank you for the help!Determine the carrier to noise ratio for a receiver with a receive power value of -80dBW, the equivalent noise temperature is 240K and the bandwidth of the receiver is 10Mhz, consider that the ambient temperature is 290K.1-Derive the relationship between the Bandwidth and frequency deviation of the system.2. Calculate the Bandwidth (BW) of the system using the selected parameters. 3- Calculate Signal-to-noise (SNR) at the Output of the receiver. 4- Indicate the sidebands in the modulated signal spectrum. NOTE: The Carrier frequency used in the FM communication system is 43.67 MHz. The other parameters are given in image
- For an amplifier operating at a temperature of 23 degrees C with a bandwidth of 20 MHz, what is the total noise power in dBm?Consider a lead network with a lower frequency break of 800 Hz. Calculate the frequency at which the gain will be -24.6 dB?i) A communication system employs a continuous source. The channel noise is white and Gaussian. The bandwidth of the source output is 10 MHz and signal to noise power ratio at the receiver is 100. (a) Determine the channel capacity. (b) If the signal to noise ratio drops to 10, how much bandwidth is needed to achieve the same channel capacity as in (a). (c) If the bandwidth is decreased to 1 MHz, what S/N ratio is required to maintain the same channel capacity as in (a).
- Explain the relationship between Gain-to-receiver system’s noise temperature ratio (dB) and the earth station receiver’s antenna diameter (m) in Satellite Communication LinksFor a system gain of 120 dB, a minimum input C/N of 30 dB, and an input noise power of "-115" dB, determine the minimum transmit power (Pt)The noise coefficient of a microwave receiver front section is desired to be measured by the Y-factor method. Using a noise source with an extreme power rating (ENR) of 23 dB and a liquid nitrogen cold load (77 °K), the Y-factor ratio is measured to be 14.83dB. Find the noise coefficient of the receiver