Interested to Buy Any Domain ? << Click Here >> for more details...
What is the need for modulation?
- 82 Answers
- 313287 Views
- Analog Devices, BSNL, HAL, Hathway, ICT, Kekran Mekran, KPIT, Microsoft, Nokia, SCSVMV, SRK, TATA, TCS, I also Faced
- E-Mail Answers
Answer Posted / jayaram injarapu
1.Interference from other signals
This is a point from the practical side of things. Suppose you are transmitting the baseband signal as it is to a receiver , say your friends phone. Just like you , there will be thousands of people of people in the city using their mobile phones.
2.Wireless Communication
By using modulation to transmit the signals through space to long distances, we have removed the need for wires in the communication systems. The technique of modulation helped humans to use wireless equipment in a bug way in their lives .
3.Size of the Antennae
When the transmission occurs over free space, the antennae radiate the signal out and receiver receives it. In order to operate efficiently, antennae need to be in order of the magnitude of wavelength of the transmitted signal.
L=λ=uϑ=(3∗108)ϑHz
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the two basic modes in which the 555 timer operates?
What is the Difference betn IBS & REPEATER?
interface 8085 microprocessor with 4K RAM, 256 bytes RAM, 2K RAM and 6K ROM using decoders and gates?
What are the commonly used filters?
A thread has to access the address space of all other threads in the same process and can therefore mess up the stacks of other threads. Why is this not a protection problem? Could the same be allowed to occur for processes, e.g. one process writing data into the stack of other.
explain double side band and double side band -substrace carrier
Why is there a maximum limit of collector supply voltage for a transistor?
Why is it necessary to include voltage stabilizer in a power supply?
what happens when a cdma user becomes as a roamer?
Describe the working of dual converter?
Explain what is the main application of scr in electronic field as well as in software field?
What are the popular ic packages available?
flow chart to convert binary number into decimal
What are active & passive elements in BTS?
what is the difference between electrical and electronic chokes
