I picked up a 12 foot comtech portable c band dish. It has a dual lnb feedhorn on it. I put new lnbs in it(dmx211) and I am able to pickup channels on 99w with the horizontal lnb. I cannot pickup anything on the Vertical side. This feedhorn has a motor on it and a couple sprockets that I think spins the feedhorn. I am not sure what this is for (skew?) or how to set it up. I am interested in getting some ITC channels on Cband. I have both lnbs connected to a multiswitch. The feedhorn has some debris in it. Could this affect my signal? it has some cobwebs and whatnot inside.