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Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include
Amplitude timing and phase correction
Antenna replacement and feed correction
Polarization shifting and code diversity
Path diversity and frequency diversity
Amplitude timing and phase correction
Antenna replacement and feed correction
Polarization shifting and code diversity
Path diversity and frequency diversity
Answer
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Related Question
Electromagnetic Field Theory
The transmitting antennas for lower frequencies (below 500 kHz) are generally
Any of the above
Horizontal suspended wire type
Parabolic reflector type
Vertical grounded wire type
Any of the above
Horizontal suspended wire type
Parabolic reflector type
Vertical grounded wire type
Answer
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Electromagnetic Field Theory
Which of following can induce the maximum induced voltage ?
20 amp dc.
1 amp 1 Hz.
1 amp dc.
1 amp 100 Hz.
20 amp dc.
1 amp 1 Hz.
1 amp dc.
1 amp 100 Hz.
Answer
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Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the
VLF
UHF
HF
VHF
VLF
UHF
HF
VHF
Answer
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Electromagnetic Field Theory
In a perfect conductor the incident and reflected wave combine to produce
None of these
A stronger incident wave
A stronger reflected wave
A standing wave which is not progressing
None of these
A stronger incident wave
A stronger reflected wave
A standing wave which is not progressing
Answer
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Electromagnetic Field Theory
When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be
alternating.
steady.
none of these.
pulsating.
alternating.
steady.
none of these.
pulsating.
Answer
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