Northern Illinois here. Bought an FTA receiver but a little confused about dishes and lnb's. I have 2 dishes. A directv slimline and an older and larger primestar. Confused about what to get for the proper lnbf and which dish might work better or not work at all. I'm an old retired electronics tech and looking for a new hobby. Seems to be a lot of conflicting info on what to use for the proper lnb. Thanks for any replies.