Oct 10, 2006 #1 V venkateshr Member level 3 Joined Feb 1, 2005 Messages 63 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,288 Activity points 503 what is the significance of 3-db bw. i know much about that but dont know why all insist on that rather than say 0-db bw. is that due to consitent gain or phase diff. plz explain me
what is the significance of 3-db bw. i know much about that but dont know why all insist on that rather than say 0-db bw. is that due to consitent gain or phase diff. plz explain me
Oct 10, 2006 #2 I IanP Advanced Member level 7 Joined Oct 5, 2004 Messages 7,929 Helped 2,311 Reputation 4,624 Reaction score 531 Trophy points 1,393 Location West Coast Activity points 66,416 Re: 3-db bw The conversion for decibels is often simplified to: "+3 dB means two times the power and 1.414 times the voltage" Click to expand... See section "-3dB ≈ ½power" at: https://en.wikipedia.org/wiki/Decibel Regards, IanP
Re: 3-db bw The conversion for decibels is often simplified to: "+3 dB means two times the power and 1.414 times the voltage" Click to expand... See section "-3dB ≈ ½power" at: https://en.wikipedia.org/wiki/Decibel Regards, IanP
Oct 10, 2006 #3 V venkateshr Member level 3 Joined Feb 1, 2005 Messages 63 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,288 Activity points 503 Re: 3-db bw thanks Ian. i know how the 3db comes and what the output res. wil be and the load impedance will be equal to output reasistance. all i know but i dont know why we insist on 3-db bw. is that bbecause we want freq. reponse devoid of any pole
Re: 3-db bw thanks Ian. i know how the 3db comes and what the output res. wil be and the load impedance will be equal to output reasistance. all i know but i dont know why we insist on 3-db bw. is that bbecause we want freq. reponse devoid of any pole
Oct 10, 2006 #4 I IanP Advanced Member level 7 Joined Oct 5, 2004 Messages 7,929 Helped 2,311 Reputation 4,624 Reaction score 531 Trophy points 1,393 Location West Coast Activity points 66,416 Re: 3-db bw "3dB or Knee Frequency" https://www.freelists.org/archives/si-list/06-2002/msg00088.html This one adds a couple of interesting oppinions on this issue .. Regards, IanP
Re: 3-db bw "3dB or Knee Frequency" https://www.freelists.org/archives/si-list/06-2002/msg00088.html This one adds a couple of interesting oppinions on this issue .. Regards, IanP