Why the singnal of wireless/Tv in db value? and why it is
showing in minus(-)?
- 4 Answers
- 5795 Views
- BSNL, Wipro, I also Faced
- E-Mail Answers
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 cmos transistor?
Definition of power electronics?
Can we use ic 741 for high frequency applications?
how work microwave anteena in mobile tower
What is modulation? Explain in detail.
What are the basic building blocks of pll?
How is focussing achieved?
flow chart to convert binary number into decimal
Draw the equivalent circuit of ujt.
Explain avalanche breakdown?
Explain the difference between power amplifier and voltage amplifier?
How the cellular phone is working?
What are the applications of flip-flops?
Write down the expression for the average output voltage for step down and step up chopper?
What is meant by gain-bandwidth product? What is its significance?
