band stop filter

Connect it between the incoming dish cable and the D12's SAT INPUT.  But I'm not sure that will solve your "searching for satellite" problem.  Perhaps you can post more info about the rest of your equipment?

your post did not show up.  perhaps you need to post directly on here rather than replying in your email

It's a brand new Dish. I ran 100' of cable to the HD tv (which with the . There is a splitter for the HD tv (100' away) and the one at that dish (garage). The splitter does say DC power pass on one side. Is there a certain way this is suppose to be attached? Also, the receiver at the garage when turned off, I lose signal at the hd tv. I do have another splitter with two connections on one side. One says vhf/uhf and the other sat. The one side says in/out with a line dcpass. These were all left here by the installer. I changed the set up when I dug a trench to the house and buried the coaxial line for the HD tv. Hope this makes sense.

Somewhere in your system there is a power inserter (see pic). The port marked "power to SWM" must be connected to the coax that runs to the dish. If the PI is connected to the coax from the dish, feed the splitter with the "signal to IRD" port. If the PI is below the splitter, the power to swm must connect to the red power passing port. The PI must have 110 AC at all times. Here is a schematic of a typical installation.