I have a 5-lnb slimline dish. One of the outputs goes about 150' to my 94-yr old mother in a granny-flat in the back of our property. She has a Directv receiver that's almost as old as she is (not quite, but it is one of the original Sony receivers). She has been getting a lot of "searching for satellite" messages lately. So, I decided to check the signal strength from the receiver. What I'm seeing is a fluctuating signal. It's most pronounced on transponder 2, but is present on all of them. It bounces from 0% unlocked to 94% locked about every second or so. Two of the outputs from this dish go to my family room and one goes to her house. I have no problems with my family room HR21 so it's not a basic dish problem. It's possible (I need to check) that there may be multiswitch and/or an inline amp in the path to her house. Could a failure of either of those cause something like this? Could I run 150' without any amplification from that dish?