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A satellite that simply reflects light or radio waves transmitted from one ground station to another without any amplification or retransmission.

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16y ago

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What is the first passive satellite transponder?

The first passive satellite transponder was known as Echo 1, launched by NASA in 1960. It was a large, balloon-like satellite that reflected radio signals back to Earth, enabling long-distance communication.


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 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


Difference bitween active and passive satellite?

In passive satellite system the ground transmitting system power at the reflector. The receiving ground system received a function of the power that has been intercepted by the reflector. In active satellite received the function of the energy band toward it by the ground transmitter system and the received power is active amplitude by active electronic means.


Are Passive reflectors used in both Active and passive Satellite system?

Yes. The most common antenna for satellite systems is the 'Dish'.The dish is a parabolic , passive, reflector.It merely reflects and concentrates the signal to the LNB receiver.Transmission also works this way, bouncing the signal off the dish, to concentrate it in one direction, in a narrow beam.


What was the first communications satellite?

The first communications satellite was named Echo 1. It was launched by NASA in 1960 and was a passive satellite that reflected signals back to Earth to demonstrate the feasibility of using satellites for long-distance communications.


What was the name of the first US communications satellite to amplify radio tv signals?

The first US communications satellite to amplify radio and TV signals was called Echo 1. It was launched on August 12, 1960, and was a passive communications satellite that reflected signals rather than amplifying them.


Is landsat 7 passive?

Landsat 7 is the Enhanced Thematic Mapper Plus (ETM+). ETM+ is a passive sensor that measures solar radiation that is either reflected or emitted.


What has the author Jeff Key written?

Jeff Key has written: 'Ice surface retrieval from AVHRR, ATSR and passive microwave satellite data' -- subject(s): Antarctic regions, Satellite observation, Remote sensing, Surface temperature, Algorithms, Arctic regions, Sea ice


Is Mark was given a warning active or passive?

Passive


What is used to gather data in passive remote sensing system?

Data is gathered by a satellite-mounted sensor and are recorded as a series of numbers. I got this from my earth science text book. Hope I helped! :)


What are kinds of passive voices and how many types are there in the passive voice?

There are seven types of passive voices 1 General Passive 2 Modal Passive 3 Journalistic Passive 4 Double object Passive 5 + ing Passive 6 + going to Passive 7 + want to Passive By H.K.Dalugama hkdalugama@yahoo.com