It depends upon the conditions and the absolute strength of the desired
signal.
http://www.ab7e.com/weak_signal/mdd.html
By the way, the headphones you're using and the settings on your sound
card have some effect on how well those audio files demonstrate the
differences, but a difference of just one db can indeed make a
difference in copy for a signal right at the noise level, and a
difference of two db can be significant.
Dave AB7E
On 4/27/2015 1:56 PM, Bry Carling wrote:
Can you hear a difference of 1.2 dB on the other end? That's about one fifth of
an S unit.
Best regards - Brian Carling
AF4K Crystals Co.
117 Sterling Pine St.
Sanford, FL 32773
Tel: +USA 321-262-5471
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