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Technical Index Aerial+LNB 1 Cable Aerial amplifier Aerial Filters Aerial Groups Aerial Points Aerial - Which? Amp Adder Analogue Switch-Off A18QR aerial Arcon Dish Atticbox Audio Adapter USB AV equipment BBC/ITV outside UK Bedroom sound Best aerial Cable Kinked Cable specs Cable-Thin Coax Cable - Which? CAMs etc. Capacitor Kits Channels Chimney Brackets Coaxial Cable Cooling fan Compass use Cupboard Control DAT45 aerial DC inserter Decouple cable Denso Tape Digibox in loft Digisender Digital Ariel Diplexers DirecTV Disconnect safely Disguise a dish Dish indoors Dish Painting Dish Sharing Dish Size E-books Electric shocks Electronic Kits Electronic Parts Epoxy resin glue Extend cable Extender Plate F1 for Free Filter-notch Fire Hazard Fit F Connectors Fit TV plugs Foxsat HDR Free channels Freeview/Freesat Freeview Problem Freesat Install DIY French sat TV German sat TV Greek sat TV Heatshrink Sleeving Hole Cover Humax PSU Inside Sky Digibox Instructions Interference Invacom LNB Italian sat TV IR sensor-locate Large Dishes Lightning Protect Liquid Spilt LNBs - about LNBs - add more LNB amplifier LNB Boots LNB Fitting LNB-Replace Sky LNB Reset LNB skew LNBs-Switching two LNBs 2 in 1 cable LNB-waterproof your Loft Boxes Magic eyes Make Fly-Lead Multiroom phone Multiswitches No Satellite Signal Omnisat Semitronic Orbital dish Phone Socket Wires Phone surge protect Plate-Twin-F Plugs-which? Plug-Top PSUs Plus Combiner Powermid+cable TV Powermid XL Reed Switches Remote Codes Remote Eyes Remote extenders RJ45 plugs Satellites-where Scart leads Self-Amalg Tape SelfSat Antenna Signal Combiners Signal Meter Silicone Grease Sky x2 same room Sky+ batteries Sky Digital Sky in Europe Sky Install DIY Sky LNB Sky LNB-extra Sky Multiroom Sky Remote Probs Sky room wiring Sky Plus Solder - How to Split Digibox RF Split Dish cable Split satellite signal Stacker-Destacker Stuck in standby Thomson Problems Tree blocks signal Triax minidish TV/VCR faults TV Links tvLINKplus TV set New TV eyes USALS Videosenders VisionLink Wall Plates WF125 Plugs What Channels Which plugs Wire my house 304114 wall plate Shop Index Checkout All Aerials Aerial Amplifiers Aerial Attenuators Aerial Boosters Aerial Filters Aerial Hardware Aerial Meters Aerial Splitters Audiophile Bargains Books to download Boosters, Amps Cable & Extensions Cable Joint Cable on Reels Capacitors Caravan/motorhome Car Radio Adapters CAT5-HDMI Components Computer Batteries Computer Leads Digibox spares DiSEqC Switches Dishes Dish Hardware DVD Players Earth rod Electrical - mains Electronic components Electronic Kits Electronic Kits 2 Extension - Coax Extension - mains Faceplates Filters electrical F Plugs Fly Leads Freeview cable Freesat Digiboxes FTA Digiboxes Freeview receivers Fuses Gaming Accessories German Sat TV HDMI / Audio Headphone Amp Home Cinema Installation kits Leads + Plugs LED Torches LNB cable LNBs for Sky LNBs 40mm LNBs C120 LNB switches LNB amplifiers Loft Boxes Magic Eyes Mains Electrical Meters Motorhome Motorised dish bits Multiswitches Power supplies Remote Controls Remote extenders Resistors RF Cable RF Modulators Satellite Cable Satellite Meters Scart Leads Screen Cleaning Signal Combiner Sky Digiboxes SkyLink Amplifiers SkyLink Bypass Splitters Telephone cable Thomson PSU Tools Grease Glue Transistors TV Eyes TV Plugs TV Wall Brackets Videosenders Video/Leads Wall plates 1 Wall plates 2 Technical Index FAQs BLOG Contact Us		What is LNB Skew? LNB "skew" angle is the rotational position of an LNB on the dish arm. All LNBs (except those used for receiving circular polarised signals) require their rotational angle (skew) to be set within certain limits in order to minimise errors in data received. Without proper measuring equipment, the simplest way to make the adjustment is by observing the default transponder "signal quality" and turning the LNB for maximum reading. (This can be done ONLY AFTER you are certain that the dish is aligned accurately on the correct satellite.) If you have a spectrum analyser, set the "skew" so that the average signal levels of horizontally- and vertically-polarised transponders are equal. The actual "skew angle" is dependent on the satellite and on your location and on the dish orientation with respect to vertical. If you use a skew angle calculator, your dish must be mounted so that its pole or bracket is set accurately to the vertical, otherwise the angle will not be correct. Sky LNBs come with a fixed setting "3" but it is correct only for dishes located in parts of England, southern Scotland and N.I. It is incorrect for most of Cornwall, Pembrokeshire, Scotland and Ireland. To adjust the skew, you will usually have to loosen a screw on the clamp bracket to allow the LNB to turn. Here's an old fashioned Sky LNB set to skew position "3". More information about dish alignment. Here's a later LNB with the 1-2-3-4-5 markings. (Apply plenty of silicone grease to the spigot and adapter for ease of removal from the arm in the future.) Map indicating the "skew" setting for a Sky LNB that is marked with appropriate numbers. This map also applies to Freesat installations, since they use the same satellite position (Astra-2). Read more about LNB fitting.   Return to SatCure index page Copyright © 2011 Martin Pickering Version 1.0 updated on August 20, 2011 This file may be downloaded for private and personal use but NO part of it may be published in any form without the prior permission of the author. Martin Pickering is a satellite TV expert who has been in the business since 1990.  Send this page address - CLICK HERE - to a friend !