Hello, I just installed a new cable run for my second tuner to my HR-21 Reciever and I'm not able to pickup odd numbered transponders. The Cable that I ran is using a coupler in between the run as it was the only way to get a cable to the location of the HR-21. The cables running inbetween the connection are both RG6 The Cables test out good and the connections on them are good, so is there any other way to connect the 2 cables to see if I can get the odd transponders. Current Setup is 5 LNB Dish, 8 Port Multiplex, Single HR-21. The Multiplex is connected to ground and Saw some where that it may cause problems so I'm going to test it without. Thanks for any feedback.