You will see Return Loss presented both ways, depending on the author.
Retaining the negative sign is less often seen and perhaps *wrong*, but either way the intent is obvious.
Jerry, KE7ER
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On Tue, Aug 11, 2020 at 08:02 AM, Danny K5CG wrote:
The presentation is very good.
However, slide 12 is not correct in the suggestion that Return Loss is always
a negative number. That is simply not the case.
The reflection magnitude in db is always a negative number, yes. Expressing it
in terms of "LOSS" is negative by implication and is thereby expressed as a
positive number. A reflection -20db down (negative) from the incident is a
return loss of 20db (positive loss). This shouldn't be confusing to anybody,
much less HP or even tomatoes.
Danny
K5CG
