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Article #1343Re: Z mismatch - was Slew Rates and Mic Pre performance
From: Phil Allison
Date: Fri, 02 Sep 2005 07:39
Date: Fri, 02 Sep 2005 07:39
56 lines
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3510 bytes
"Alan Rutlidge" > "Richard Freeman" >> >> Well actually I am afraid that Hybrid leakage is not actually anything to >> do with impedance mis-match but rather more to do with Gain of a >> Transmission System and the way a Hybrid works - The gain of the System >> can (obviously) be affected by Impedance etc however the echo is not the >> result of reflected signals due to Impedance mismatch but rather from the >> fact that a hybrid is not perfect. >> The term signal reflection is often used to refer to hybrid leakage but >> (and here is the rub) it is not Impedance reflection. >> >> http://www.commsdesign.com/design_corner/showArticle.jhtml?articleID=16502325 >> >> http://www.iec.org/online/tutorials/echo_cancel/topic02.html >> > > When the source and load impedances are matched all the power developed by > the source will be transferred to the load without loss. ** You are an absolute fuckwit - Rutmaniac . > As soon as either of the impedances vary relative to the other an > impedance mismatch occurs. ** You are an absolute fuckwit - Rutmaniac . The max power transfer theorem has nothing to do with the issue. > Under such conditions not all of the power developed by the source will be > transferred to the load. This results in a loss of power which is > directly related to the degree (ratio) of impedance mismatch. ** You are an absolute fuckwit - Rutmaniac . (snip total irrelevances copied from some beginner's web site) ** You are an absolute fuckwit - Rutmaniac . Can't even get chasing under aged Thai boys right without losing your shirt. ROTFL........ .......... Phil
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