TeLecommuniCation And NetWorkinG: Chapter 5 !

banyakk jugak topik dalam Chapter 5 ni...

so this week kitorang sambung dengan beberapa lagi topik which is...

Unbounded media

Satellite Communication

Cellular telephony

masuk sikit tentang Wi - Fi

dalam post lepas.. da terang an serba sikit pasal unbounded media ryte..
so lets continue ! :D
dalam unbounded media.. ad RADIO FREQUENCY ALLOCATION
terbahagi kepada 8 ranges (bands)
each regulated by governmental authorities 


Terrestrial Microwave
huuu~ da macam lagu E.T da. hak2. :D
microwave ni memerlukan line- of - sight transmission and the reception equipment. 
the taller the antennas, the longer the sight distance
maksudnya, antennas ni sering didapati di atas gunung dan sebgainya to capture all signals in line (parallel)
 to increase the distance a system of repeaters can be installed with each antenna
terdapat dua jenis antenna which is parabolic dish and horn

parabolic dish ~ ingat perkataan CATCH !
sebab ia menangkap signal tok dipantulkan ke direct poit :D

horn~ ingat GIGANTIC SCOOP !


Satellite Communication
1st thing yang ak taw is bnd ni xad BOUNDARIES !
principle die same je dgn terrestrial microwave

ok mcm yg korang lihat... kat bawah ada receiver kiri dan kanan ryte...

yg belah kanan uh menghantar station.. yg belah kiri menerima...

tok CELLULAR TELEPHONY...

ianya direka untuk menyediakan stable communication connections between two moving devices or betweem one mobile unit and one stationary (land) unit

WI - FI !

ramai yg taw sebut perkataan ni tp xtaw what its stand for ryte.. weel~

ak pn tyme blaja ni bru laa taw. huu..

wireless - fidelity haa !

ni laa name sbenar ny.hee.. :D

ianya follow a standard known as 802.11 ~ 54Mbps ! 

created by Electrical and Electronics Engineering (IEEE)

paling banyak yang digunakan ialah system 802.11 b ~allows transmission o f data 11Mbps  !

p/s: ak terlambat upload post ni sbb masalah penyakit lupa maw tekan button PUBLISH ! hahah... suda ny lepas setel urusan rugby southern 10 baru laa ad energy maw on9. sory guyz  ! 

-__-

lots of love,

sugaramour <3 20