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Unformatted text preview: AL- QUDSUNIVERSITYFaculty of EngineeringSecond Exam Time: 60 minJanuary 10, 2009Marks: 25Couse: Communication Systems (0331411)Instructor:Dr. Ali JamoosStudent NameRegistration NumberQuestion NumberGradeQ1Q2Q3Q4Q5Q6TotalPlease try to write as clean as possible!Good Luck1Q1)Circle the correct answer: [10 points]1. The bandwidth of a coaxial cable is up to: (a) 500MHz(b) 500Hz (c) 500THz (d) 50KHz2. The wavelength range of light transmitted over multimode fiber optic cables is:(a) 8.2-9 nm (b) 82-90 nm (c) 820-900 nm (d) 8200-9000 nm3. A 1 Watt power source is applied to one end of a 0.5mm twisted pair cable operating at 1MHz and a 0.01 Watt is received at the other end, the cable length is (make use of figure 1):(a) 100m (b) 1Km (c) 2Km (d) 20Km4. The microwave frequency range is:(a) 0.3THz – 200THz (b) 0Hz – 4KHz (c) 30MHz – 1GHz (d) 1GHz – 40 GHz5. The distance from earth to a satellite in a geo-stationary orbit is about:(a) 30Km (b) 34Km (c) 36Km(d) 38Km6. Line-Of-Sight (LOS) wireless propagation is:6....
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- Fall '10
- Twisted pair, Coaxial cable, code words, AL- QUDS UNIVERSITY, Dr. Ali Jamoos