Definition of TETRA
TETRA (Terrestrial Trunked Radio) is mobile radio technology
.It is also international standard for radio communication formally by European
standard for digital Professional Mobile Radio (PMR).
Where is TETRA will be use ?
-It will be use for
users who would like fast one to-one and one-to-many radio communication
using voice and data in their daily operating.
What is benefits of TETRA technology ?
-able to work in worst weather, thunderstorm and blackout
electricity .
-able to transmit perpetually , 24 hours every day even in
usual condition
-cost are less that alternative communication PMR services.
What is application supported by TETRA?
Automatic vehicle location , railway applications , road
transport information , file transfer
& access to databases, fax and fleet management.
What is disadvantages of TETRA technology ?
-Requires a linear electronic equipment to satisfy the tight
RF specifications that enable it to exist aboard alternative radio services.
-Interference to certain TV stations , vehicle electronics
,heart pacemakers, baby alarms, medical instrumentation (including first-aid
heart defibrillators).
-Immediate health effects as a result of it cause sleep
disorders, headaches, itchy skin, nosebleeds, migraines and inflated epileptic
episodes.
-In long-run health effects radio transmission operative
cancer brains and human biological systems
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