You'll need a 2nd set of diplexers after the DP44 and behind each rcvr. One diplexer outside, a 2nd before the DP44. ANT from the 2nd diplexer directly to the ANT of the 3rd diplexer or via splitter to 3rd. Fourth diplexer behind each rcvr. SAT input from the 2nd diplexer into the DP44. OUT TO RCVR ports from the DP44 into SAT port of the 3rd diplexer(s). You may need a signal booster for your OTA before the 3rd diplexer since you're splitting it so much.patlintwo said:I am use 2 diplexers, one on my roof to combine the OTA antenna and satellite signals, and another diplexer just before DR44 to split the signal with the Sat port of the diplexer connect to DP44.