Why do we use FM for sound and AM for video in TV
transmisssion?
Answer Posted / ashish
in FM the amplitude ramains constant.it is a property of the
noise disturbance that it affects the amplitude of the
signal.so at the recieving end if we found the amplitude
variation in FM wave then it will be due to the noise hence
it can be eliminated by using the appropriate filter without
the loss of information.hence FM is used for sound signals.
| Is This Answer Correct ? | 6 Yes | 17 No |
Post New Answer View All Answers
Impedence of a parallel resonant circuit at resonance is ?
i want the aptitude test papers of wipro can any one help plz
details of siemens automation systems.
idea uses the 1800mhz band with alloted 4.4mhz bandwidth. this band is divided into 22 channel(up link).how will operator divides these channel in to traffic channel and control channel. explain
Explain why making capacity of the circuit breaker is higher than breaking capacity?
What is the chemical composition of the substance used as feed horn? And how many types of feedor are there?
What is the maximum value of tv in msa to calculate r&r?
what is firing angle of phase controlled rectifier?
whatis the test condition for the leakage current rating for 25kv high voltage test on PVC armoured cable?
Please send RRB section engineer's signal paper of past 20 years.This is very urgent.I am giving section engineer exam this syear
How to configure Network printer What is DHCP? what is the use of DHCP?
today software are down how u are u going to clear this?
what is serial communication??
which modulation will be suitable for transmitting audio file? is there any transformation needed for transmission?
i am electronics & telecomm engg & appling 4 the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & old question papers.I will be very much thankful to you. NAZEEHA E.MAIL ID:- km.nazi.km@gmail.com