Prime-focus dish - LNB recommendation

[moonbase]

When I connect IBU a Sat Finder immediately gets noisy even while LNB is on the ground. When I connect Inverto C120 or GI-209P using the same cable there is no noise coming from Sat Finder. I was thinking maybe a cable conductor is not long enough for LNB connectors to make a proper connection? Either that or devices are broken but I refuse to believe that 2 new devices could be broken...

Have you actually put one of the new LNB's on the dish and tested it using a satellite receiver ?

 

[Espinosa]

Of course I did, I just wanted to say that even without putting it on the dish it's obvious that something is wrong.

 

[moonbase]

Of course I did, I just wanted to say that even without putting it on the dish it's obvious that something is wrong.

Well, if you have setup and tested both of these two new LNB's on the dish and they do not work it suggests to me there is something wrong with the setup.
It would be rare for two new LNB's both to arrive as faulty.

However, it is possible they are faulty, I notice you bought 4 of the GI-209P LNBs, have you tested all of them on the dish?