Hello!
i bought 3 diffrent c 120 feedhorn,on
Ebay

,the strange think 2 of the siver feed horn i bought,the winding looks difrent a little bit,also it is not the same then the gold version!
only the gold version is the orginal,the silver one for me,looks like an imitate,and i cant belive that the silver version of this c120 feedhorn comes from invacom!
also i dont find any datasheet about this,to find out,how much the gainwinning,with or without exactly will be ,does someonme made any test about it?