Obamot wrote:This guy is crazy, he makes an addition when he wants to mitigate a noise!
Forget - obviously - the lorarithmic rule and after accuses others of being done!
Should we lock him up!
Obamot still has not understood the logarithms with his sophisms!
-30dB is divide power by 1000 = 10x10x10x10 ie -10dB-10dB-10dB = -30dB !!!
It is the attenuation of a single interface air water !!
there is 1 and only 1 / 1000
At the next interface, the 1 / 1000 instead of 1, is attenuated by 1 / 1000 which gives 1 / 1000x1 / 1000 = 1 / millionth (ie -60dB)
Thus on the 4th interface only 1 / 1000 is left multiplied 4 times, ie 1 / thousand miliardiéme is -120dB = -30dB-30dB-30dB-30dB !!
And Obamot always has 50 phonic layers in his brain to fail to understand as elementary by trolling the troll Naudin !!
And clearly he is quite young, from the generation of calculators, to never have of his life used a rule to calculate, based on logarithms!