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If you find this information useful and want to thank me, why not buy one of my low-cost "eBooks" that you can download direct to your computer? My books can be read on-screen or printed out on paper. They are full of colour photos and illustrations. http://www.The-Cool-Book-Shop.co.uk | |||||
LAST ORDERS, PLEASE!We will be posting our last orders at 3pm Friday 21st and our Sales department will reopen on January 2nd. (Technical help will be available throughout the holiday period). Anything ordered on the Friday should be delivered on Monday 24th but we are relying on a heavily overloaded Royal Mail and carrier services. Some miracles happen at Christmas but please don't be upset if your order fails to arrive on time. We'll simply do our best and the warehouse elves are currently getting a darn good thrashing. Goodbye, Rupert!Rupert Murdoch is stepping down as Chairman of BSkyB and as a director of the satellite broadcaster, it has been confirmed. Mr Murdoch's son, James, Chief Executive Officer since November 2003, is replacing him as Non-Executive Chairman. More... http://news.sky.com/skynews/article/0,,30400-1296059,00.html Disgruntled employee tries to shut down California: (Read the comments - most amusing!) FM Transmitter review
We occasionally get asked for gold-plated connectors. One optimist even asked for a gold-plated "F" connector. I still wonder how he proposed to gold-plate the centre core of the cable to which he was going to fit it! In my work as a Design Engineer and, later, as a Reliability Test Engineer, I carried out many tests on connectors and discovered that most gold-plating is rubbish. Quite often it is no more than a "cosmetic flash" of around 0.5 microns average thickness, with "perforations" in it. My tests indicated that any such "perforations" would inevitably allow corrosion to begin. And, once started, it would quickly spread sideways to the coated areas. Indeed, the only gold-plating which survived my tests consisted of a 5 micron gold plating on an 8 micron nickel plating - a quality of plating which is seldom found in electronic connectors. Of course, unless both mating contact surfaces are plated like this, corrosion is inevitable. If you put dissimilar metals together you simply make the corrosion occur faster. But corrosion occurs only in the presence of moisture and oxygen. Moisture is prevalent outside, of course, but it also occurs indoors from cooking and from human breathing. You'll often see it as condensation on windows. Any room with condensation is a breeding ground for corrosion in electronic equipment. It's made more likely if you let the equipment cool down (condensation forms on cold metal parts) then warm it up (chemical processes double in speed with every ten degree C rise in temperature). In this respect, leaving equipment powered up is a good idea! One relatively cheap and easy way to minimise or prevent corrosion is to coat the contact surfaces with something that excludes moisture and air. For this purpose, we recommend silicone grease. It is highly water repellent and can withstand temperatures far higher than your equipment will ever reach. In addition, it is non-conductive, so it won't cause a short-circuit. Now, you may think "if it's non-conductive, surely it will cause a really bad connection?" Luckily, that's not true, as explained here: http://www.satcure.co.uk/tech/silicone2.htm As you push the connections together, any surplus grease is pushed out, so the amount you need is miniscule. Therefore, it can be extremely cost effective. You can use it on TV plugs, phono (RCA) plugs, jack plugs, DIN plugs, Scart plugs and telephone plugs. (Be sure to coat all contact areas, including the outer metal "ground" sections.) It stopped my G2 iPod from producing an annoying crackling sound. A child's watercolour paint brush is useful for getting right inside plugs and sockets. And silicone grease has many more uses. You can see some of them here: http://www.satcure.co.uk/tech/silicone.htm Hi Martin, Reading your mention of silicone grease took me back to a radio programme I heard on the old BBC Radio London when Johnnie Longdon was the engineer there and used to broadcast a technical session once a month. One broadcast dealt with rigging aerials and one of the BBC riggers recommended the plentiful use of silicone grease in all aerial connection boxes and connectors. I have followed the advice ever since especially during my time as a licensed radio amateur when I found a complete absence of corrosion in connections given the treatment and taken down after many years exposure to the elements. I find it especially useful these days when applied to F connectors under their boot. Kind regards, Jack Need a Christmas Present?A bit late for Christmas but here are some suggestions for New Year gifts: I came across Paul Harvey in 1994 because he's a fellow Mac user. He and his wife ran "Autumn Designs" then joined Paul's brother, Steve, to form "This Way Up" http://www.thiswayup.co.uk but I want to point you to his wife's (Karen) own business which is called "Jewels 4 Jeans": My friend, Alex Hoyle, specialised in supplying remote control handsets and kitchenware to hotels but, last year, he branched out into supplying coffee grounds by mail-order. Nick Lipson was my boss when I was a manager for a Japanese company back in 1989. When Nick's wife died from cancer he took over her business, supplying the best fruit coulis in the world. (What is coulis? It's a fruit puree which tastes delightful with yoghourt, ice-cream and other "pudding" dishes.) Nick supplies up-market delicatessan shops all over the UK but is happy to supply you by mail-order if there's no local stockist. Warning: this stuff is addictive!
Questions- a selection from this month's emails I have just moved into a new build house where both the bedrooms upstairs have a single coax wall plate. These are linked to another plate in the main living room where my Sky Box is. My Magic Eye is actually a Samson Teardrop, when I try to connect either of the TV's upstairs via the wall plate and RF2 I get the Sky picture but cannot change the channel via the teardrop/infra remote. The teardrop, second remote and cables that link the all plate to the teardrop all work as i've performed a test with a single piece of coax, everything worked fine, it's only when I go through the wall plates it doesn't work! I've had a look at the wall plates and they are the unscreened variety, like the one here with the two yellow arrows http://www.satcure.com/tech/wallplates.htm Should I just buy a couple of screened ones, e.g. 2 x GLO27 or do I need an amplifier? Many Thanks Pete Hi, Pete. Whilst a SkyLink compatible amplified splitter will allow the remote signal to pass backwards through it to a Sky Digibox, and passes power to a "magic eye", unfortunately it can't confer the same ability on an unsuitable wall plate. So the answer is to use a DC-pass wall plate that passes power to the "magic eye". Equipment made by: Pace Sky Model number on label or rear panel: DS430N I am trying to install a Pace DS430N to receive English channels. I don't have a card. Signal strength and quality are good; EPG is working (I have downloaded software update). But it won't access any channels (I get the "there is a technical fault with this channel" message). I have tried turning the power off completely and leaving it for a bit, but it makes no difference. Any ideas? Thanks for your time. Edward Assuming that the Digibox is connected to a working dish and LNB, aligned on the correct satellite, then your receiver may be faulty. See http://www.satcure.co.uk/tech/ "2. Sky Digital problem ?"
Response from Steve Edwards: Hi Martin, If Edward is receiving EPG data and a NetID of 0002 (Services/4/6), then his dish must be relatively properly aligned. His problem is probably the Default Transponder frequency. With no card he'll only receive BBC, ITV and other FTA channels. Edward, can you view Sky News on ch501? This is a South Beam transponder, whereas BBC & ITV are North(DKB)transponders. This shouldn't be a big problem with a 1m dish in France, but any smaller than that and initial reception could be inhibited. I am in Palma de Mallorca where even a 1.25m will struggle to receive BBC's & ITV's transponders at times. Most professionals are now installing a minimum of 1.7m aluminium dishes, but even that will not receive during heavy rainfall! 2m &endash; 2.5m is the requirement for faultless reception. My forte is marine stabilised pedestals &endash; SeaTel, KVH, R&R &endash; whose deep-dish (not a pizza!) and carbon-fibre dish technologies are collecting the required level of signal from smaller-diameter dishes; thus a SeaTel 36" (the Americans are still struggling with metric!) deep-dish is now outperforming the older 40". Herewith is a document that I've produced for yachts. So, Edward, carry out these instructions to change your Default Transponder. The Pace digibox won't always remember the settings once power is removed, so print the document for future reference until you have the keystrokes memorised. Sky digi-box search frequency reset instructions for Mediterranean cruising. Please follow these key-presses using your Sky remote control:
Regards, Martin, and thanks for an interesting and informative newsletter, Steve E ryan You could run a cable but I don't see what you would achieve by it, since you are not combining the LNB signal with any other signal - therefore there's nothing to decombine. I recommend you read our notes: http://www.satcure.co.uk/tech/combiners.htm http://www.satcure.co.uk/tech/lofthelp.htm Richard If you have a Sky subscription including "Premium" channels you will have to phone Sky and ask the operator to activate the card in your replacement Digibox. They will require the information from your information screen. Best Wishes, Martin Thanks Derek Hi, Derek. Unfortunately, we don't offer dish stabilising systems. They are mainly used on luxury yachts and cruise ships. Prices start around £20,000 I believe. Martin, You had a letter about satellite TV on a boat. It's not cheap about (£2,000) but the TracVision satellite dish http://www.conrad-anderson.co.uk/mobilesatellitetelevision/tracvisionR5-sat-dome.htm is extremely impressive in action. I saw it mounted on a car roof receiving Sky while the car drove in figure of 8 patterns around the car park. It was built for boats but is sometimes seen on luxury coaches. It has a built in receiver which knows about 4 transponders on the target satellite and continuously adjusts the dish for best bit error ratio. You can thus attach a sky box or anything else you fancy. Hope this is of use to your sailor. If he can afford a sea going boat £2k might be an acceptable price ! All the best and I enjoy the newsletter, Mark Hawkins Mark |
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The SatCure Satellite Review is written for the customers and subscribers of the following websites:
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http://www.The-Cool-Book-Shop.co.ukcopyright © 2007 Martin Pickering