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A kit for radiotelephones has the following feature:
1) reception Consumption: 0.5 amps
2) Consumption Transmission: 9 amps
3) Working voltage: 12 V
The equipment works in reception mode, 24 hours a day and throughout the year. About 120 daily Call Ringtone, a median time of 3 min duration each, except Saturdays and Sundays, which are carried out almost no calls are carried out. Autonomy is required to keep the equipment is 20 days, using a battery self-discharge of 4.5% per month, according to the manufacturer. The panels have been chosen have a nominal power of 20 W. How many panels and batteries should be installed?
Assume 5 hours of peak sunshine.
Efficiency 75% battery.
Depth of discharge for the battery is 80%
With regard to assembly language and the HCS12: What is the instruction to initialize the SP register Why do we initialize that register What is the reason we initialize it with the value $4000 for this microcontroller
Design a microstrip transmission line with Z0 =100 ohm that will be etched onto a sielectric substrate with er = 3 and a thickness of 4 mm. what should be the width of the microstrip line
A coaxial cable has a loss of 5.6 dB at a frequency f. A signal at f has ans rms amplitude of 1.7 mV at the cable input. What is the rms amplitude after it has traveled the length of the cable
Consider a satellite communication link with a one way propagation delay of 300ms between the sender and receiver, operating at 10Mbps using packets of length 1500bytes. Length of the ACK packet is also 1500 bytes.
The time to failure of fluorescent lights in a large office building is exponentially distributed with a failure rate of 0.03125 hours. How many spare tubes must the building custodian maintain to have at least a 0.95 probability of replacing all..
1. ) calculate the consumption of energy , taken from WAPDA, solar panels etc. 2. ) Transfer this data wirelessly to the grid station Please provide some ideas to implement this and list of components.
A balanced three-phase inductive load is supplied in steady state by a balanced three-phase voltage source with a phase voltage of 120Vrms. The load draws a total of 10kW at a power factor of 0.9.
if you had a calculated quality from specific volume data and you were asked to write down the equation for specific internal energy and had to find use a given specific internal energy (or specific enthalpy) and use to get a specific volume.
Calculate the %age second harmonic distortion present in the amplifier's output for a sinusoidal input of 10 mV r.m.s.
Calculating a DC Current through the telephone handset, A telephone handset has a resistance of 600 ohm. It is connected to the local telephone exchange at a distance of 5 km by a twisted pair that has a loop resistance of 200 ohm per km
three coins are tossed. Describe the following events: A. at least two heads occur. B. At most one head occurs. C. Exactly two heads occur. D. No heads occur Find the probability for the occurence of each event.
determine the corediameter required for the fiber topermit its operation over the wavelength range 1.48 to 1.60um. calculate the new fiber core diameter to enable single mode transmission at a wave length of 1.30um.
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