That's going to depend on the particular ground-station equipment for the uplink,
and the transponder power for the downlink. If you don't know these, then you
need to get them before you can begin the analysis of the satellite link budget,
and if you don't understand that they can be different for every link, then you
really ought to trust the analysis to another engineer.
An active satellite has its own power source to transmit signals, while a passive satellite reflects signals back to Earth. Active satellites can amplify and process signals, making them more efficient in communication. Passive satellites are simpler in design and are often used for tasks like Earth observation.
Yes, you can use your truck satellite radio on your boat as long as you provide proper power and relocate the antenna, and as long as your boat stays in the footprint of the transmitting satellite. I only add that last part because a boat is a general term and could mean an ocean going vessel in which you could leave the foot print of the satellite radio service.
Two huge reasons: 1). Radio power is expensive. If you have a transmitting antenna that spreads its power uniformly in all directions, you'd need a lot of power in order to push a usable signal all the way to the satellite, and all the power that went off in other directions would be wasted. It makes a lot more sense to focus all the power you have in the direction you need it to go, and get by with much less transmitter power. 2). If you're spreading your transmitter power around in all directions, you're almost certain to be interfering with somebody else who is also trying to carry on a satellite operation on the same frequency that you're using. The whole technology works a lot better for everybody if each operator restricts their radiated power to only the direction they need it to go, and avoids spraying it in the direction of other operators.
The main parts of a Landsat satellite include the payload, which consists of the sensors and cameras for collecting data; the power system, which typically includes solar panels and batteries for energy; the communication system for transmitting data back to Earth; and the spacecraft bus, which provides the structure and support for the satellite's operations.
The Production Budget for Absolute Power was $50,000,000.
400KV
That truthfully depends on the transmitter's transmitting power, height of the transmitting antenna and the terrain.
Allan D Kotin has written: 'Satellite power system (SPS)' -- subject(s): Environmental aspects, Environmental aspects of Satellite solar power stations, Satellite solar power stations
James B. Blackburn has written: 'Satellite power system (SPS)' -- subject(s): Environmental aspects, Environmental aspects of Satellite solar power stations, Satellite solar power stations
The power of the signal, as perceived by the receiver, will be lower with an omnidirectional antenna. This is because the omnidirectional antenna is transmitting in all directions, while the directional antenna is transmitting in only one direction.Think of the directional antenna as a lens, focusing proportionally more power in a smaller space.
used to increase the power level of the transmitting signal
Both. They transfer power by transmitting torque at a rotational speed.