Well, one of my last two DMX-741 LNBFs took a dump! That leaves only the one on my Winegard dish. Where is WSI when you need them!!! This one that quit working was on the Raydx and it's really funny how it went down. It was working flawlessly up until we got 11.5” of snow back about a month ago. That Raydx is a deep dish and although it was pointed at 139w, the lower half of it filled up with snow that didn't fall out like it did on the other two dishes I have. After I cleaned the Raydx off/out I had NO SIGNAL on any location I ran to both C and Ku. Initially I though maybe the weight of the snow had damaged that dish? So I waited a week or so until the snow was gone and played with it again. What I found then was that it was intermittent as would work at receiver boot up but quit when I changed channels all while Q numbers when it was working were as good as my Winegard dish on the same sats and TPs. Hummm…………Nothing wrong with the dish then? So I swapped out receivers, no change! I put a new switch on it to see if that would fix it, it didn't! Still would only lock a channel at receiver boot up? Took the switch out and went with coax direct to the receiver…….still did the same crap! Then I ran new coax out to the dish……...still didn't work??? Ennywho, I had an NS741(did I mention that I never liked those?) here in spare parts and after grinding the lip off the end of that so it would fit in my scaler ring (rolleyes) I mounted it, sloppy fit and all, and proceeded to test again. Good news is I have got C band stuff probably as good as before but bad news is, Ku not so much. This one won't lock ANY of the NBC Ku feeds on 103w now and the Q on other Ku TPs it will lock aren't above 60%. I'm going to tweak on it a little more once the weather warms up to see if I can get NBC on 103w again but I'm not optimistic that it will be any better. Wishing now that I had bought about a dozen of those DMX 741 LNBFs when they were still available, but like so many other inexpensive parts they are long gone now!!! Like I said above, where is WSI and Robby when you need them???