Birdog V2.5 here Directvs dither method works fine on this meter. but for fine adjustment tweaks of 103(b) I use walkie talkie or cellphone,two people and the meter built into the receiver unit.:up
It may be possible to max out strength on one sat and lose the other. However, based upon your post, I'm assuming that you are talking about the AT-9 dish. There are a lot of things that could have failed on the dish, and have in the pass, so swapping with an AU-9 Slimline may not be a bad idea.