0
it depends the fourth one tells your receiver how much you are above sea level
What else can I help you with?
How many satellites does it take for GPS to find something?
Your receiver must pick up at least 4 to get an accurate 3D lock. If your receiver can safely assume you are on or near surface of earth it can get a good 2D lock with just 3. This is usually a safe assumption to make, especially with civilian receivers. Less than 3, all it can do is set its clock.
How active satellite differ from passive explain with an example?
active satellites are receives the transmitted signal from earth ,amplify the signal and transmit it. it is also called as transponders. but passive satellites just receive and transmit the signal.itac as the reflector
Does a gps give off radiation?
Yes, GPS devices use satellites to communicate and determine location, so they do emit low levels of electromagnetic radiation. However, this type of radiation is non-ionizing and considered safe for everyday use by regulatory bodies.
How many satellites on average within half an hour would be visible from one point?
It would depend on the time. We can't see satellites in the daytime, because the sky is so bright that it washes out the view of small satellites. (The early "Echo" balloon satellites were a short-lived exception. Enormous mylar balloons, inflated in orbit, acted as passive reflectors of radio signals AND sunlight; if you knew where to look, they were possible to see in the daytime.) In the middle of the night, the satellites that you might hope to see are in the Earth's shadow themselves, and cannot be seen. The Iridium "satellite phone" satellites orbit in pretty high orbits, however, and are often in the sunlight. And when the solar power panels are oriented "just right", it's possible to see an "Iridium flare" for just a few seconds; again, if you know just where and when to look! But most low-Earth-orbit satellites, such as the International Space Station, are visible for only about an hour after sunset or for an hour before dawn. So, "on average", none. Sometimes several.
Number of satellites of the Earth?
If you are refering to natural satellites there is only one and that is the moon. If you are refering to artificial satellites there are heaps. Military, GPS and mobile just to name a few catagorys of satillites. Hope that helped.
Why do gps receivers need to receive signals from four diffrent satellites not just three?
its confusing.
Why do GPS receivers need to receive signals from 4 different satellites not just 3?
it depends the fourth one tells your receiver how much you are above sea level
How many satellites does it take for GPS to find something?
Your receiver must pick up at least 4 to get an accurate 3D lock. If your receiver can safely assume you are on or near surface of earth it can get a good 2D lock with just 3. This is usually a safe assumption to make, especially with civilian receivers. Less than 3, all it can do is set its clock.
How active satellite differ from passive explain with an example?
active satellites are receives the transmitted signal from earth ,amplify the signal and transmit it. it is also called as transponders. but passive satellites just receive and transmit the signal.itac as the reflector
Do satellite dishes emit dangerous rays into a house?
In terms of injury or harm caused by electromagnetic signals, satellite receiver dishes do not cause any hazards. They are designed to gather and decode very weak signals and emit virtually no electromagnetic radiation. The only danger is that of bumping yourself walking past them if they are mounted at low level.
How does wireless devices works?
Wireless devices use radio frequency signals to communicate with each other through a wireless network. These devices have transmitters and receivers that send and receive data via radio waves, eliminating the need for physical wired connections. The devices interpret the radio frequency signals to transmit and receive information such as text, audio, or video.
What were satellites originally made for?
The first artificial satellite that had a particular purpose (other than just for scientific research) was the Echo satellite; a large mylar balloon placed in orbit to reflect radio signals back to the Earth. Now, satellites are used for all kinds of communications; TV, cell phones, overseas phone calls, internet and such; weather satellites that help to predict the weather and track storms, and reconnaissance satellites that take photos of the Earth. Oh; GPS satellites.
Where can you find cheap receivers that unscramble your tv channels such as HBO and Animal Planet?
You can find receivers that are pretty cheap at many different places. You can find receivers at just about any store or online.
What satellites does Mars have?
It has just two. They are Deimos and Phobos. These are the moons or natural satellites. There are also satellites from Earth, sent to observe Mars.
Can any digital tuner receive freeview?
Freeview is a Television service in Europe and can be received with a set top box or a TV receiver so the way your question is worded, the answer is no. Just because the TV is digital does not mean it is freeview.
What are the armbands on football receivers for?
They could be just for looks, which is probably the case.
Does a gps give off radiation?
Yes, GPS devices use satellites to communicate and determine location, so they do emit low levels of electromagnetic radiation. However, this type of radiation is non-ionizing and considered safe for everyday use by regulatory bodies.
