Found many studies/articles about the characteristic db loss of UHF connectors (PL-259, SO-239 & barrels/double female). Depending on the source of info & assuming proper installation, it is held that the loss of a PL-259 used for 11 meters is around .1 or .2 db per connector. I need technical info, expertise or your help to identify a reliable source to determine the loss of an elbow (right angle) and double-male coax connectors. I do not want to ‘guesstimate’ by just adding the loss attributed to a PL-259 for each side of the male-male connectors.