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What else can I help you with?
Why do satellite TV frequencies change?
Satellite television frequencies change for various factors the major one being that the particular frequency has become unusable and therefore needs to be changed.
Basic Difference between Active and passive Satellite System?
An active satellite acts as a REPEATER; it amplifies signals received and then retransmits them back to earth. This increases signal strength at the receiving terminal to a higher level than would be available from a passive satellite. A passive satellite only reflects received radio signals back to earth. fr0m: ZIA UR REHMAN D-05-ES-29 DCET Karachi Pakistan.
How can you block the transmitter signal?
Transmit another signal using the same carrier frequency to interfere with the original signal...also known as "jamming". If you have two signals using the same carrier frequency, and you add a second signal source with the same carrier frequency, and an a stronger amplitude (intensity), but different signal data, then it mixes with the original signal at the receiving end, and the original signal cannot be clearly decoded.
Why do you use high frequency signals for communication and why not very high frequencies?
Low, medium and high frequencies is ideal for long distance communication but it is very sensitive to QRM and QRN because only amplitude modulation can be used on this part of the RF spectrum, FM modulation is not possible, where in the higher frequencies, FM (Frequency Modulation) is a beter option but with the drawback of distance overland. VHF, UHF and UUHF can't overcome obstacles like hills, mountains and large buildings, only line of site communication can be used here, although it can be used for long distance in open space IE. in outer space, like satellite communication.
Please tell the website where you get bst information about satellite and satellite communiction?
Google!
How can an artificial satellite be used to relay 2014 world cup to be held in Brazil to observers in their houses in Nigeria?
An artificial satellite can be used to relay the 2014 World Cup to observers in Nigeria by receiving the live broadcast signal from the event in Brazil and transmitting it back to Earth. This process involves the satellite receiving the signal from the broadcasting station, amplifying it, and then retransmitting it to Earth where it can be picked up by satellite dishes or other receiving equipment in Nigeria. This allows viewers in Nigeria to watch the event in real-time as the satellite acts as a relay station for the broadcast signal.
What is the purpose of launching of aryabhata satellite?
To indigenously design and fabricate a space-worthy satellite system and evaluate its perfromance in orbit. To evolve the methodology of conducting a series of complex operations on the satellite in its orbital phase. To set up ground-based receiving, transmitting and tracking systems. To establish infrastructure for the fabrication of spacecraft systems.
Transmitting a signal from a ground station to a satellite is called?
uplinking
Can a satellite radio get gps signal?
No. The satellites used to distribute Sirius/XM "satellite" radio operate on frequencies assigned to Sirius/XM "satellite" radio. They don't operate on frequencies allocated to the GPS system.
Why do satellite TV frequencies change?
Satellite television frequencies change for various factors the major one being that the particular frequency has become unusable and therefore needs to be changed.
How does a Landsat satellite differentiate between objects on Earth's surface?
Features on Earth radiate warmth at different frequencies, which show up as different colors on Landsat images.
Idirect 3000 series satellite router what are these rx tx stands for?
RX is the receiving port and TX is the transmitting port. If you see RX/TX lights flashing, it means that there is data being received or transmitted at that time.
Is there any satellite TV broadcasting in full HD?
Both satellite providers in the US are transmitting many HD channels.
Why there is an difference in uplink and downlink frequencies in satellites?
It is much easier to build a satellite transponder using different frequencies for the two directions (frequency division duplex, FDD). A single frequency (time division duplex, TDD) satellite link is possible, but then all earth terminal must be carefully synchronized. The satellite transponder and the earth terminals would be more expensive, the whole network would be more complex and less reliable. There is also a historical reason. Frequency bands were allocated decades ago and changing them would be very difficult. FDD and TDD terminals cannot coexist in the same geographical area.
Why must a satellite have distinct uplink and downlink frequencies?
To avoid interference
What are the frequencies of the satellite communications?
That's a silly question! =P Typical satellite TV frequencies are mainly transmitted at C-band (4-8 GHz) or Ku-band (12-18 GHz)
What is the receiving or sending unit that revolves around the earth?
A satellite is the receiving or sending unit that revolves around the Earth. Satellites are used for various purposes such as communication, navigation, weather monitoring, and scientific research. They orbit the Earth at different altitudes depending on their intended function.
