Interested to Buy Any Domain ? << Click Here >> for more details...
What do you mean by 3 dB cutoff frequency? Why is it 3 dB,
not 1 dB?
- 16 Answers
- 85890 Views
- College School Exams Tests, Infosys, Persistent, TCS, Wipro, I also Faced
- E-Mail Answers
Answer Posted / piyush
In electronics communication power gain is of great importance
ie Pout/Pin. This gain is expressed in Db ie
gain(Db)=10log10(Pout/Pin).
when the pwr ratio goes to 1/2
Pout/Pin=1/2
at this situation the the gain is -3Db beyond this the
output signal pwr falls to that extent that it becomes
useless thats why we consider 3Db cutoff frequency....
| Is This Answer Correct ? | 35 Yes | 6 No |
Post New Answer View All Answers
why we use low and high radio band in m/w link at both end
What are the three stages through which pll operates?
Explain the construction of a jfet
What are the fundamental properties of boolean algebra?
Plz tell me the GATE interview question asked for ECE branch?
What is a pointer and does Java support pointers? What is the difference between a JDK and a JVM?
Dear concern Plz provide me the solved papers of Railway section engineer in signal...
can u send me previous question papers of secction engineer (electronics),chennai rrb.
What is the difference diac and triac?
Explain why an ordinary transistor is called bipolar.
in govt polytechnic lecturers tell me what is the expected cut off for ece after the interview list announced
Which device produces voltage variable capacitor?
Can you help me correct FM transmitter circuit?
Explain the difference allen bradley and siemens plc
What are the faults that might happen in SCADA ?
