What does LNB and LNBF stand for ? and How to use it ?

What does LNB and LNBF stand for ?

LNB stands for Low Noise Block.  LNBF stands for Low Noise Block Feed. LNBF is really a LNB with a built in feed horn and electronic polarizer. LNB stands for Low Noise Blockconverter. It converts a range or "block" of frequencies to another range or "block" of frequencies. Early stuff like we sold in the late 70s or early 80s was a LNA, which stood for Low Noise Amplifier. The downconverter for those was seperate from the LNA.