Am installing the UAT ABS-D unit to go with my GRT Sport EFIS. I have located the transponder type antenna just forward of the R step. I located it there as it provided easy access to drill thru the bottom of the plane with inside access only removing the,side cargo wall door. It also is more than a meter behind the actual GTX327 transponder antenna. A friend wondered if the step would dissipate part of the signal? Will contact someone Monday but any opinions?
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