HI Have been producing PC´s for several years, for 6M, 2M and 70 cm. 2,3,4,6 and 8 ways. The lossis is less than 0.05 dB - and is merely a loss in the connectors - from plug to cable than its the loss in the combiner itself. I could NOT measure the loss - isolated !! So dont think of this. Think of a good quality of connectors / plugs instead.