LNB Views 10 meanings found LNB most commonly denotes the low‑noise block down‑converter, a key component in satellite dish systems and other communications equipment, and is also used in related technical terminology. Miscellaneous Lamborghini Newport Beach Governmental Load Noise Buffer Academic & Science Low Noise Block Low Noise Blocker Low-Noise Block down converter Regional Lamen Bay, Vanuatu Computing Low Noise Block converter Business Lorain National Bank Lyons National Bank Laredo National Bank