Talk:Return loss

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[edit] I moved the discussion out of the "See Also" section to this discussion page

The equation for return loss has a typing error. Z₅ in the denominator should read Z₂.Iqbal Syed 13:46, 11 November 2006 (UTC)

Other sources give the return loss = -20log(reflection coefficient).
Where the reflection coefficient = ZL - Z0 / ZL + Z0, the inverse of what is shown here.

• The equation is correct as it is. See note 5 in the article. Also notice that the formula in the article has a positive result for the log() function and multiplies this by positive 20. The result of log(ZL - Z0 / ZL + Z0) will be negative for most cases, and when multipled by negative 20 you will get the same positive result. I believe the formula in the article is more correct and more general. Brianonn 15:57, 14 January 2007 (UTC)