What is the equation to Calculate the gas space path loss, gspl, due to the Earth’s troposphere over the bandwidth of operation?
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What is the equation to Calculate the gas space path loss, gspl, due to the Earth’s...
Calculate the maximum allowable path loss in dB between a radio transmitter and a receiver for the following transmission parameters. Assume the free space propagation loss condition. Transmitter's power: 10 Watt. Minimum required SNR (Signal to Noise Ratio) at the receiver: 5 dB. . Transmission channel bandwidth: 25 kHz. Noise power density No-0.8 x 10-9 W/Hz .Transmitting and receiving antenna gains are 1 dBi and 2 dBi respectively
Antenna Theory & Design question Exercise and Homework 1: Free-Space Path Loss (rest of class) Conservation of energy is a law. At steady state, so is conservation of power - any power that goes into a region has to go out of it or be dissipated within it. (In general, power can also be stored, but one of the assumptions of "steady state" is that power is being stored at the same rate that it's being released.) 1. Assume you...
6. Determine the isotropic free space loss at 4 GHz for the shortest path to a synchronous satellite from earth (35,863 km).
(a) Under the free-space path-loss model, find the transmit power required to obtain a received power of 10dBm for a wireless system with isotropic antennas (Gl = 1) and a carrier frequency f = 5GHz, assuming a distance d = 10m. (b) Show that, under free-space path-loss model, doubling the distance attenuates the power received by approximately 6dB.
Calculate the magnitude of your centripetal acceleration due to Earth’s rotation on its axis (standing on the ground here in LA). Why doesn’t this rotation send you flying off the surface of the Earth?
a) What is the value in dB of the free-space loss for a carrier frequency of 900 MHz and a range of 10 km? (b) The effective isotropic radiated power (EIRP) is 1 W. Assume that both the transmitting and receiving antennas are isotropic and that there are no other losses. The noise N0 = N/W = κTo is −174 dBm/Hz. The EIRP is 1 W. The bandwidth is 20 MHz and the bit rate per Hz of bandwidth is...
What are the five most plentiful gas modules or atoms making up the Earth’s atmosphere and what are their abundance levels? Give proper units - ppm or % (is it by volume or by mass?)
A. What is the equation to calculate the partial pressure of a gas. B. Calculate the PaO2 for The air at 18,000 feet (atmospheric pressure 280 mm Hg). Show your equation/work. C. Calculate the PaO2 for the air at sea level (760 mm Hg). Show your equation/work. D. Is there a significant difference?
Calculate the rate of energy loss due to thermal radiation from an unclothed person if the average skin temperature is 37 °C and the room temperature is 20 °C. You may sume a total surface area of 1.5 m and a skin emissivity value of 0.9. How much energy (from food) must be consumed per day to compensate for this loss? If the person is surrounded by a layer of insulation of thickness 1.0 cm with a thermal conductivity of...
:Consider a cellular system operating at 2.4GHz where propagation follows simplified path loss with γ = 3, d0 = 1 and K = −30dB, and with variations about this pathloss due to log-normal shadowing with σ = 4dB. Suppose that for acceptable voice quality an SNR ratio of 40dBm is required at the mobile. Assume the base station transmits at 0dB and the receiver noise in the bandwidth of interest is −50dB. a) Find the maximum cell size such that...