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To provide better resistance to noise.
Because most of noise occurs in +ve terminal.
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∙ 11y ago
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Why be use the -48 volt for bts?
48 is volt scale and negative voltage is used for safety of media, to prevent attanuation and noise.
Why BTS operated at -48 Volts?
All telephone exchanges use -48V DC Power supply. The negative potential is used to prevent electrolysis deposition at Battery terminals. Telephone normally work with about 30ma current driving a line impedence of about 1600 ohms (to drive about 5KM distance). Hence 30ma*1600 ohms=48 volts.
Why bts work on -48DC V?
IN BTS -48V IS USED REASON BEHIND IT IS THAT When interference is occur in voltages it affect only positive pulse not in negative terminal so if we make positive common then no interference occur And we get pure -48 volts without any interference. Another reason is that we can use +48 but the lightning has -ve charge due to attraction all the network may destroy so we use the -48 which repel the lightning that make the network safer from great destruction...
What is negative 4 times negative 12?
-48
Why is a rectifier needed for a GSM BTS?
This is bcoz we need -48V for Gsm BTS, -48 DC is used to control Fluctuation So the main function of this is 1) To convert AC to DC 2) To control overloading
What is the absolute value of negative 48?
48
What is negative 6 times negative 8?
(-6) x (-8) = 48
What is negative fiveeight plus negative one sixth?
-30/48 - 8/48 = -38/48 or -19/24
What is -33 plus -15 equal?
-48
What is negative 48 volt DC voltage?
Negative 48 volt DC voltage is simply a voltage that is negative 48 volts with respect to ground. This voltage is widely used in telecommunication systems.
What are the factors of negative 48?
The factors of -48 are 1,2,3,4,6,8,12,16,24,48 and their negatives.
What is negative 124 minus 48?
-124 - 48 = -172
