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Contact Us		Single-output Sky LNBs Sky LNBs are designed to fit certain dishes. We can supply the MK4 LNB (with adapter if required). Older LNBs are no longer manufactured. We supply details of the "finger" or "spigot" dimensions (below) so you can match them to your dish. Please measure your dish arm internal dimensions and choose the adapter if required. Please don't waste time by asking us what to buy. If in doubt, order the LNB and the adapter. Alternatively, you can buy a dish and matching LNB together as a kit from us. Fitting instructions - click here DO YOU REALLY NEED A NEW LNB? Many so-called "LNB faults" are caused by a simple bad connection. The bare copper wire corrodes. Before spending your hard-earned cash on a new LNB, you might like to cut back the cable a couple of inches and refit the plug. Coat the copper wires with silicone grease to prevent corrosion in the future. (We'd love to sell you a new LNB but we believe in honesty and we'll help you to save money whenever possible.) Single-output universal Sky LNB (Rubber boots NOT needed). Feed four separate Sky Digiboxes or two "Sky Plus" Digiboxes. Bracket fits over the mk4 minidish arm and is secured with a plastic pin. See notes below. Fitting instructions - click here - also see our special offer upgrade kits. Integral pull-down rain cover. Tick the box if you need the 28 x 18.5mm adapter for a MK2 or MK3 dish. MK4 Single-output universal Sky LNB £6.99 Include adapter for MK2/3 dish£1.49 Optional Accessory This is the same adapter that you'll get by ticking the box, above. It is available separately for anyone who already has a MK4 LNB but needs this adapter. Adapter for MK2/MK3 Sky minidishes. Spigot dimensions: 28 x 18.5mm. NOT required for MK1/MK4 minidishes. (See below.) Apply plenty of silicone grease to it for ease of removal in the future. £1.49 Qty Note: The Mk2 and MK3 adapters fitted into the same cross-section arm but were of different lengths because the LNB focal position was different. To get optimum signal strength, it's important to set the LNB at the correct focal position by trial and error. Will this fit my dish? If your dish is a Sky MK4 dish the LNB arm is an inverted U in section, with the lower section open (i.e. it is not a closed tube). Our MK4 LNB fits this MK4 dish (see photo showing measurement, below). If your dish is a MK2 or MK3 dish with internal arm dimensions 28 x 18.5mm then you can use our MK4 LNB with the adapter, above. Fitting instructions - click here Historical Information MK4 Sky minidishes were manufactured after April 2009 and have a different LNB attachment method from earlier minidishes. The arm is 27mm wide (external) and of open channel construction. The LNB bracket fits over the top of it. Our MK4 LNB will fit a MK2 or MK3 dish if you order the adapter. It should also fit a MK1 dish (below) without the adapter but you must drill a hole and fit a self-tapping screw or a nut and bolt. (A MK4 LNB has a 38mm diameter neck NOT 40mm.) A MK1 Sky minidish looks like the very old Channel Master dish in this photograph, with internal arm dimensions 23 x 10mm approximately. The MK4 LNB is a loose fit over the dish arm and will need to be packed with shims to prevent movement and secured with a screw or bolt. Before securing it, you must slide it back and forth to locate the focal position (highest signal indication). (ChannelMaster Sky minidishes were originally installed with a Grundig "G" type LNB such as "G88" shown in this photo.) Send this page address - CLICK HERE - to a friend !