What is meant by pre-emphasis and de-emphasis?
Answer Posted / harimohan k. bhagwane
pre emphasis is a process which is used in transmitter side
to boosting the amplitude of higher modulating signal
before modulator.IF we used it after the modulator than
carrier &modulator signal will mixed and it is difficult to
verify which one is the modulating signal.
de emphasis is process which is used in receiver side
to reduced the signal & get their original signal.But it is
used after demodulator ckt.
| Is This Answer Correct ? | 57 Yes | 13 No |
Post New Answer View All Answers
What is graticule?
name the institue for l1,l2 tranning
Define mobility of a carrier. Show that the mobility constant of electron is larger than that of a hole.
what is work of eoca card in nokia flexi EDGE BTS?
what kind of negative feedback is present in a noninverting op-amp.
Explain the operation of sequence control of ac voltage controller?
1.Introduce yourself by telling your name ,SSC,HSC, degree marks n colleges,something about your family and interests. 2.Tell about your favourite subjects. 3.Tell how satelite communication works? 4.what you mean by handoffs in mobile communication.tel its types. 5.what you mean by signal fading?tell the factors affecting it and also tell the remedies to avoid it. 6.why the microwaves are used? 7.Draw the GSM architecture? 8.What u mean by Antenna?What are its basic components? 9.why you are interested to work in this company? 10.can you work anywhere anytime as per the our need?
What is inductor?
why odd number of lines used for scanning
what is digital communication,digital electronics,flip flops,gates,buffer,memory and draw the diagram of flip flop,buffer,gates,memory?
What is a transducer and transponder?
box1-a box2--a box3-a-1 in 3steps using any operation get a*(a-1)-(a-1)*a in box2
State the de morgan's theorem?
Draw the current Vs time graph for an inductor connected to a d.c. source. How will you measure power of a transmissioon line? Tell all the steps alongwith the components used in power generation. Which law governs the induced emf?
I am going to face an interview in Ericssion tomorrow for implementation Manager.I need some idea on interview question