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When you plot BER against Eb/No, why you need to apply log base 10 to Y-axis?

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mazdaspring

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When ploting BER against Eb/No, why we should apply log base 10 to Y-axis or BER value?

because the graph will be totally different when you dont apply log base 10.
 

In logarithmic scale you can see clearly small error rates.
In linear scale, if the Y axis spans from 0 to 1, you could not distinguish for example 1e-3 from 1e-4 or 1e-9 or less.
There is a big big difference in performance between those values. You could not distinguish a good system and a bad one with a sight. In log scale you can.
Regards

Z
 

To give a better visualization of the fine error rates that have different order of magnitude but are all very small and looks close to each other in linear scale.
 

Thank you so much for both of you. Those are very clear :)
 

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