A helical antenna is used for satellite tracking because of its

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A helical antenna is used for satellite tracking because of its Circular polarization

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A helical antenna is used for satellite tracking because of ______. A. Broad bandwidth B. Good front-to-back C. Maneuverability D. Circular polarization

Description : A helical antenna is used for satellite tracking because of ______. A. Broad bandwidth B. Good front-to-back C. Maneuverability D. Circular polarization

Last Answer : D. Circular polarization

Type of antenna which is normally used for satellite tracking service. A. Omni B. Helical C. Yagi D. Dipole

Description : Type of antenna which is normally used for satellite tracking service. A. Omni B. Helical C. Yagi D. Dipole

Last Answer : B. Helical

Collects very weak signals from a broadcast satellite A. Helical antenna B. Satellite dish C. LNA D. TWT

Description : Collects very weak signals from a broadcast satellite A. Helical antenna B. Satellite dish C. LNA D. TWT

Last Answer : B. Satellite dish

Satellite tracking stations are located in remote areas in order to minimise the effect of

Last Answer : Satellite tracking stations are located in remote areas in order to minimise the effect of Man-made noise.

Which antenna is not a wideband? A. Discone B. Folded dipole C. Helical D. Marconi

Description : Which antenna is not a wideband? A. Discone B. Folded dipole C. Helical D. Marconi

Last Answer : D. Marconi

What is the gain, in dB of a helical antenna with diameter of λ/3, 10 turns at pitch of λ/4, used at 100 MHz? A. 16 B. 41.1 C. 31.4 D. 1.25

Description : What is the gain, in dB of a helical antenna with diameter of λ/3, 10 turns at pitch of λ/4, used at 100 MHz? A. 16 B. 41.1 C. 31.4 D. 1.25

Last Answer : A. 16

_____ is an open-ended slot antenna A. Helical antenna B. Rhombic antenna C. Notch antenna D. Cassegrain antenna

Description : _____ is an open-ended slot antenna A. Helical antenna B. Rhombic antenna C. Notch antenna D. Cassegrain antenna

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An antenna with very high gain and very narrow beamwidth. A. Helical antenna B. Discone antenna C. Horn antenna D. Parabolic dish antenna

Description : An antenna with very high gain and very narrow beamwidth. A. Helical antenna B. Discone antenna C. Horn antenna D. Parabolic dish antenna

Last Answer : D. Parabolic dish antenna

Which antenna radiates an omnidirectional pattern in the horizontal plane with vertical polarization? A. Marconi antenna B. Discone antenna C. Horn antenna D. Helical antenna

Description : Which antenna radiates an omnidirectional pattern in the horizontal plane with vertical polarization? A. Marconi antenna B. Discone antenna C. Horn antenna D. Helical antenna

Last Answer : A. Marconi antenna

Earth station uses what type of antenna A. Despun antenna B. Helical antenna C. Toroidal antenna D. Cassegrain antenna

Description : Earth station uses what type of antenna A. Despun antenna B. Helical antenna C. Toroidal antenna D. Cassegrain antenna

Last Answer : D. Cassegrain antenna

Which of the following antennas receives signals equally well from all directions in a horizontal plane? A. Hetz antenna B. Vertical Marconi antenna C. Yagi antenna D. Helical antenna

Description : Which of the following antennas receives signals equally well from all directions in a horizontal plane? A. Hetz antenna B. Vertical Marconi antenna C. Yagi antenna D. Helical antenna

Last Answer : B. Vertical Marconi antenna

What antenna can be used to minimize the effect of Faraday rotation of polarization? A. Dipole B. Parabolic C. Helical D. Rhombic

Description : What antenna can be used to minimize the effect of Faraday rotation of polarization? A. Dipole B. Parabolic C. Helical D. Rhombic

Last Answer : C. Helical

ECE Board Exam March 1996 An antenna that is circularly polarized is the ____________. A. parabolic reflector B. helical C. Yagi-uda D. small circular loop

Description : ECE Board Exam March 1996 An antenna that is circularly polarized is the ____________. A. parabolic reflector B. helical C. Yagi-uda D. small circular loop

Last Answer : B. helical

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Description : Indicate the antenna thatisnotwideband: a. Discone b. Folded Dipole c. Helical d. Marconi

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Adaptive array antenna is superior to switched beam antenna because:

Description : Adaptive array antenna is superior to switched beam antenna because: (A) It optimizes the power radiated (B) It has simpler architecture (C) It has low bandwidth (D) It has low backlobe

Last Answer : Adaptive array antenna is superior to switched beam antenna because: It optimizes the power radiated

How can I learn more about GPS satellite tracking?

Description : How can I learn more about GPS satellite tracking?

Last Answer : There are many places online to learn more about GPS Tracking. Sites with information on this include: http://en.wikipedia.org/wiki/Global_Positioning_System and http://www.gps.gov/.

Is GPS satellite tracking legal?

Description : Is GPS satellite tracking legal?

Last Answer : Yes. As Stated at http://www.liveviewgps.com/gps+satellite+tracking+.html, they are legal and available to the public, for a price of course. You also need proper equipment in order for it to function properly.

What is the best use for a satellite tracking device?

Description : What is the best use for a satellite tracking device?

Last Answer : Satellite tracking devices are best used to locate vehicles in real time. This technology can be useful to companies for tracking shipments. Satellite tracking device can also be useful if you have ... offers some detail as to how this technology works, http://en.wikipedia.org/wiki/Tracking_device

The control routine necessary to keep the satellite in position is referred to as A. station keeping B. station tracking C. station monitoring D. station maintaining

Description : The control routine necessary to keep the satellite in position is referred to as A. station keeping B. station tracking C. station monitoring D. station maintaining

Last Answer : A. station keeping

The satellite subsystem that monitors and controls the satellite is the A. propulsion subsystem B. power subsystem C. communications subsystem D. telemetry, tracking, and command subsystem

Description : The satellite subsystem that monitors and controls the satellite is the A. propulsion subsystem B. power subsystem C. communications subsystem D. telemetry, tracking, and command subsystem

Last Answer : D. telemetry, tracking, and command subsystem

Why is satellite acquisition and tracking important?

Description : Why is satellite acquisition and tracking important?

Last Answer : To ensure earth terminal antennas are always pointed towards the satellite.

Illustrate how telemetry tracking and command system used in satellite communication.

Description : Illustrate how telemetry tracking and command system used in satellite communication.

Last Answer : Telemetry, Tracking and Command (TT&C) Subsystem These systems are partly on the satellite and partly at the control earth station. They support the functions of the spacecraft management. Telemetry System ... pulse to the satellite. Then the satellite executes these commands.   OR  

_________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency. A. Horn antenna B. LNA C. Satellite receiver D. Satellite dish

Description : _________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency. A. Horn antenna B. LNA C. Satellite receiver D. Satellite dish

Last Answer : B. LNA

Do I need a digital television antenna if I have a satellite such as DirectTV?

Description : Do I need a digital television antenna if I have a satellite such as DirectTV?

Last Answer : Broadcast TV stations in the U.S. have switched from analog to digital transmissions. This Fact Sheet provides information on TV antennas and tips for obtaining good quality reception of digital broadcasts.

Consider the following statements: 1. In a direct-to-home (DTH) system, the viewer dish antenna picks up signals from the satellite directly. 2. Cable operators receive signal from the satellite on large community dish antennas and then transmit to the viewers’ sets. Which of the above statements is/are correct? (a) Only 1 (b) Only 2 (c) Both 1 and 2 (d) Neither 1 nor 2

Description : Consider the following statements: 1. In a direct-to-home (DTH) system, the viewer dish antenna picks up signals from the satellite directly. 2. Cable operators receive signal from the satellite on large community dish antennas and ... ? (a) Only 1 (b) Only 2 (c) Both 1 and 2 (d) Neither 1 nor 2

Last Answer : Ans:(c)

Which does not use vertical polarization antenna? A. AM Broadcasting B. FM Broadcasting C. Mobile Communications D. Satellite Communications

Description : Which does not use vertical polarization antenna? A. AM Broadcasting B. FM Broadcasting C. Mobile Communications D. Satellite Communications

Last Answer : B. FM Broadcasting

What circuit is responsible in activating and deactivating adjacent antenna elements in a mobile satellite array? A. Radial divider B. Divider/combiner C. Radial combiner D. Radial multiplexer

Description : What circuit is responsible in activating and deactivating adjacent antenna elements in a mobile satellite array? A. Radial divider B. Divider/combiner C. Radial combiner D. Radial multiplexer

Last Answer : A. Radial divider

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Description : In a typical mobile satellite array antenna if three elements are activated, how many elements are deactivated? A. 3 B. 11 C. 5 D. 9

Last Answer : B. 11

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Is the geographical representation of a satellite antenna radiation pattern A. Footprint B. Spot C. Earth D. Region

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A satellite transmitter operates at 4GHz with an antenna gain of 4dBi. The receiver 40000 km away has an antenna gain of 50 dBi. If the transmitter has a power of 8 W, find (ignoring feedline losses and mismatch) the EIRP in dBW. A. 50 B. 69 C. 49 D. 30

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An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak

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The line of sight communication requires transmit and receive antenna to face each other. If the transmit...

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Ground plane antenna are used for

Last Answer :  Ground plane antenna are used for VHF

The number of parasitic elements in yagi antenna is

Last Answer : The number of parasitic elements in yagi antenna is 2.

Electrical length of an antenna is

Last Answer : Electrical length of an antenna is Greater than physical length.

Yagi antenna has

Last Answer : Yagi antenna has Driven antenna, reflector and directors.

Yagi antenna contains

Last Answer : Yagi antenna contains Dipole, one reflector and many directors.

Television receiver antenna is usually

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Antenna commonly used for microwave links are

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Which one of the following statements is correct? Digital modulation techniques are used in satellite ...

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A communication satellite is a repeater between

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