Why the singnal of wireless/Tv in db value? and why it is
showing in minus(-)?
Answer Posted / kashmir singh
The decibel ( dB) is used to measure sound level, but it is also widely used in electronics, signals and communication. The dB is a logarithmic unit used to describe a ratio or it is the unit of sound.
its value is showing in minus(-) because mathematically we take antilog of the value of sound/noise
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
What is a transducer and transponder?
Give the typical value of bias current for ca741 operational amplifier.
What is meant by load commutation?
How video signals are produced?
What are different categories of antenna?
what is asynchronous data transfer???
Differentiate between pass band and stop band.
i having one cisco 2950 switch,but i having no rights of ythis switch,now i want to know switch macc addrerss of particular network ip,how can i resolved?
please define master-slave flip flop briefly.
What is the advantage of on-off control?
Why the width of the base region of a transistor is kept very small compared to other regions?
what is associate law?
Define hybrid parameter?
I had completed my diploma in electronics and communication. Currently am working with a pvt. ltd. (with two years of experiences) company which makes panel using plc, VFD(drivers) and scada monitoring system. so should i get supervisor licence for my supervisor post???
Explain the main application of scr in electronic field as well as in software field?