Yes I think I could do it myself I have a basic meter to check signal strength just need to get a hold of a ladder and away we go lol.
BTW got in touch with amazon to request a warranty return just waiting for a answer back.
I did place my meter between the unicable LNB and the STB and the meter jumps in signal all over the place 23% then to 99% then down to 2% etc, If i turn the STB off then I loose all the signal and then after about 10 mins it will show a week signal and then jump about if you change channel again
The Legacy outputs just stay at 99% all the time and does not move, even if I turn on and off or change channel.