I am using a 18"DISH and a dual lnb on a tripod for my travel trailer when we go camping and what not. ..so it's new years day at have my tt at my son's house celebrating...and I trip on the cable going to the dish and knock it over...up until that point I had signal and was watching TV inside....I tried for 2 hours to get a signal again to no avail . So I thought I must have ruined my lnb. So, I purchased two new lnb,s recently getting the spring fever bug to go camping and be ready to do so and tried both of them in both different spots with two different rg6 cables and I still can't get a signal...at all???? I don't get it...I've set this thing up several dozen times and usually have a signal within a few minutes. ....I've don't see any damage per say to my dish???? I sure could use some suggestions