# SOLVED TELECOMMUNICATION II (218) ND2

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1. Ground WAVES wave: [or surface wave] is a surface wave that propagate close to the surface of the earth.

It has a low frequency waves, especially A.M broadcast is the medium waves its employed for world-wide communication in very low frequency bands.

1. Space wave : This may be considered to consist of two rays, one travelling in a straight line between two point and the other travelling between the same two point by means ofÂ  single reflection from the earth.
• Sky wave: This is the propagation of electromagnetic waves bent[reflected] back to the earthâ€™s surface by the ionosphere in the high frequency band.

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COURSE TITLE: TELECOMMUNICATION II

COURSE CODE:Â Â  EEC 218Â Â Â Â Â Â Â  TIME ALLOWEDÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â  2 HOURS

CLASS:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â  ND II FT & DPP

INSTRUCTION:Â  Answer four [4] question. Question one is compulsory.

QUESTION ONE

1. What is propagation of radio wave? (2 MARKS)

RADIO IS the behaviour of radio waves when they are transmitted or propagated from one point on the earth to other parts of the atmosphere.

1. Explain the following terms in connection with radio wave propagation.
2. GROUND WAVES (3 MARKS)
3. SPACE WAVES (2 MARKS)
• SKY WAVE (2 MARKS)
1. Ground WAVES wave: [or surface wave] is a surface wave that propagate close to the surface of the earth.

It has a low frequency waves, especially A.M broadcast is the medium waves its employed for world-wide communication in very low frequency bands.

1. Space wave : This may be considered to consist of two rays, one travelling in a straight line between two point and the other travelling between the same two point by means ofÂ  single reflection from the earth.
• Sky wave: This is the propagation of electromagnetic waves bent[reflected] back to the earthâ€™s surface by the ionosphere in the high frequency band.

## 1 review for SOLVED TELECOMMUNICATION II (218) ND2

1. graliontorile

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