What is an LNB Tester?
Before you ask what an LNB tester is, you should know what an LNB is. An LNB is the receiving end of a satellite dish. LNB stands for low noise blocker; it is a device that essentially does what it says. It blocks low noise (frequencies) in order to receive higher frequencies in which satellite transmissions use. Today, the majority of satellite dishes are sold for commercial use to receive digital television signals or for communication technology such as broadband Internet.