TransmissionMedia

Feb 3rd, 2012
Studypool Tutor
Price: $5 USD

Tutor description

A short note about TransmissionMedia .A transmission medium is a material substance (solid, liquid, gas, or plasma) that can propagate energy waves. For example, the transmission medium for sounds is usually air, but solids and liquids may also act as transmission media for sound.

Word Count: 954
Showing Page: 1/37
Data and ComputerCommunicationsTransmission MediaPrefaceguided - wire / optical fibreunguided - wirelesscharacteristics and quality determined by medium and signalin unguided media - bandwidth produced by the antenna is more importantin guided media - medium is more importantkey concerns are data rate and distanceDesign FactorsBandwidthhigher bandwidth gives higher data rateTransmission impairmentseg. attenuationInterferenceNumber of receivers in guided mediamore receivers introduces more attenuationElectromagnetic SpectrumTransmission Characteristics ofGuided MediaFrequencyRangeTypicalAttenuationTypicalDelayRepeaterSpacingTwisted pair(with loading)0 to 3.5 kHz0.2 dB/km @1 kHz50 s/km2 kmTwisted pairs(multi-paircables)Coaxial cable0 to 1 MHz0.7 dB/km @1 kHz5 s/km2 km0 to 500 MHz7 dB/km @ 10MHz4 s/km1 to 9 kmOptical fiber186 to 370THz0.2 to 0.5dB/km5 s/km40 kmTwisted PairTwisted Pair - TransmissionCharacteristicsanalogneeds amplifiers every 5km to 6kmdigitalcan use either analog or digital signalsneeds a repeater every 2-3kmlimited distancelimited bandwidth (1MHz)limited data rate (100MHz)susceptible to interference and noiseUnshielded vs Shielded TPunshielded Twisted Pair (UTP)ordinary telephone wirecheapesteasiest to installsuffers from external EM interferenceshielded

Review from student

Studypool Student
" Excellent work as always thanks so much "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1819 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors