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1:11 and 1:28 are not usable ratios (the R in SWR stands for RATIO), and a ratio is properly stated as a variable number to the number 1.


There is only one colon in a ratio, and the colon is always followed by a 1.  A ratio of two to one would be properly written as 2:1.  It might be possible that you meant 11:1 and 28:1, but those values are far outside what is generally accepted as reasonable SWR values.