hi, if u want to use with 4x1 diseqc switch, u have split the output of monoblock lnb by 2 way powerpass spliter. then connect with 4x1 diseqc switch. if u connect directly with 4x1 diseqc switch, it will not work. if ur stb box having diseqc 1.1 function, u can use 8x1 diseqc switch.(old stb box not working with diseqc 1.1)