Author : Koral WilkinsSatellite systems have become a popular way to receive digital TV There are subscriptions for a large range of different packages all around the world, you probably have one as well and are watching the signals trough a satellite dish Most likely you have a small dish because that’s often all that’s needed to watch the channels from your country because the beam is strongest around its targeted location The interesting thing is that if you tried turning the dish you possibly be able to view channels from another satellite, like from a different country The sky is full of satellites and Free to Air which very possibly don’t require a big dish The most popular satellites in Europe are Astra 19E and Hotbird 13E which carries many FTA channels in different languages, like Turkish, Italian and Russian It may not sound interesting to view the foreign channels On the other hand, lets say you would really like to watch a tennis match that is not broadcasted on your viewing package but the match is on a free on another satellite, wouldn’t it be great to watch it? Or maybe something else, there is a lot to watch Still after some time its not that much enjoyment of having to go outside and manually rotate the dish each time between satellites This is where motors come into action There are different to choose from, such as DiSEqC, 36v H to H and actuators DiSEqC are the most used and they are pretty good for dishes up to 1 meter dishes With this option it uses your satellite receiver as power that runs on 12v and 17v The receivers have limited power for the motor as it has to share it with the LNB, this means they are slow and not as powerful as say 36v H to H motors Its an easy upgrade because it uses the existing coax cable which already goes to the LNB on your dish 36v H to H motors and actuators are more robust, can cope with higher wind loads and drive larger dishes and they use their own source of power via a receivers built-in 36v positioner However most receivers don’t have a built-in positioner but don’t worry, in this situation you could use a device called VBox The advantage of the V-Box is the positions are stored into it instead of into the receivers software All the different motors are made to do the same thing, to track the satellite arc within 180 degrees It is not possible to see beyond this range as all the other satellites are below the horizon, as in not visible Its a good idea to plan where to put the dish so trees and mountains are not blocking view to the satellites you want to watch If you have everything aligned correctly the dish will rotate to the programmed location as you hop channel This opens up to a whole new dimension of TV as you can catch channels from all over the world Limit here is the dish size Visit Lyngsat to find out which dish diameter you need in your location for any desired satellite So the bigger dish you have, the more channels you can scan in

I should mention there exists multible bands, these are working in different frequencies C-Band is low frequency and often needs big dishes Ku-Band which is used throughout Europe, works at higher range of frequencies Both these bands have Vertical and Horizontal (Linear), Left and Right (Circular) polarization A LNB is either Circular or Linear, you can still combine both on the dish if you put the two LNB’s next to one another If you choose to do this you should use a 2/1 DiSEqC switch, this will automatically inform the receiver which LNB to use for each type of signal There are many choices of dishes, motors and satellite receivers but don’t give up its not as confusing as you might think The sky is full of satellites and channels which anyone can see with the hardware that’s currently available on the market Have fun!Article written by Koral Wilkins. To find more details on this topic. Read authors page about motorizing an OP150 Gibertini dish.

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Author : Aydan CorkernAntennas are reliable pieces of technology and continue to remain popular even though a lot of people have moved on to seemingly better methods of watching TV Some might consider it a little old-fashioned, but what’s old is new, and the fact that antennas are still around and being used is a testament to their productivity So if you have decided to join the millions of other people who are already using an antenna, then you can enjoy not having to pay any monthly fees and getting local channels in high-definition, granted that you have a HDTV

Finding the right antenna for your place might seem like a daunting task at first After doing a search on the internet and browsing through the antenna aisle at your local electronics store, you’ll see that there’s more to it than just picking up any random box and expecting for it to work great You have to take certain factors into consideration, such as where you live and what type of antenna will be best for your location You will have to determine where you will install your antenna You have three locations to choose from: indoors on your tabletop, outdoors on your roof or on the side of your wall, or in your attic

The last place mentioned is not a common place to put it, but some people love the idea of having the antenna out of mind and out of sight While some antenna enthusiasts will not recommend that you put an antenna in the attic, the fact remains that it does work for some people Not all are successful with an attic installation, however, for various reasons First, the attic is a small place, so fitting yourself in there to mount it, let alone having an antenna standing at its full length, might not be possible for some attics Then there is the issue of interference from the materials that are in the walls and the roof itself The roof might have some aluminum siding, metal ducts, and other building materials that can interfere with the signal and weaken its range

For some unexplained reason or another, an antenna will sometimes refuse to work in an attic even if it has excellent specifications Even more surprising is the fact that your next door neighbor’s attic-mounted antenna might work just fine, but if you were to use the same exact antenna and the same configuration, your antenna will refuse to work Such incidences are unexplained, and there really is no solution to something like that but to either keep trying until you do get it or another antenna to work or to just give in and mount your antenna on your TV stand or on top of your roof

This is not to say that it won’t work for you Again, it has worked for some homeowners, and it might just work for you Give it a try when you purchase your new antenna, and you might just be pleased with the results Aydan Corkern is a writer, HD enthusiast, and promoter of hdtv antenna and outdoor antenna.

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Author : Nir DotanIn a major city in the Greater Toronto Area, a road sweeping study was made after an air sample revealed that a major source of particulate matter (PM) came from road dust The study was focused on what road sweeping techniques and technologies can be used to reduce road dust In addition, it revealed that by using road cleaning vehicles rather than mechanical types, either the airborne PM content will reduce about 90%, or overall air quality will improve by 21% to 30%

In recent years, cities/municipalities in the GTA have made efforts to purchase approximately 50 new road sweeping machines In addition, these machines are not just ordinary road cleaners but are ones that utilize regenerative air that is by far the most effective breakthrough to reduce PM content in the air Because of the study, a dustless procedure of cleaning streets has become an important factor in choosing road cleaners

Improving Ambient Air Quality:

The most important feature that the majority of regenerative air sweepers have is a water flushing feature within the dust containment hopper Since this type of technology uses regenerative air, the air that comes into the dust chamber must be filtered with debris and dust so it can be used in road sweeping again To do this, a flush of water is directed to the incoming air The effect is that debris becomes heavy with water and drops to the bottom of the chamber However, water does not filter air particles or air pollutants and they still escape with the outgoing air This is why a second filtering system-cartridge filters, is mounted on the chamber of most sweepers

After the air is cleaned, it goes through a pressure hose into the pressure chamber located in the upper portion of the road sweeping brushes There, it builds pressure and is then pushed through the blast orifice unto the street surface This pressure alone works to remove dirt off the street but it does not collect it off the street and dust is formed

These problems however are addressed by the same pressure that removes dirt off the ground Because of efforts made by the fan blower in producing this air pressure, a vacuum or an opposite kind of pressure is formed This vacuum is then used to collect dirt, dust, and debris off the ground To make this process more effective, many regenerative air sweepers have containment rubber curtains or flaps located behind and in front of brushers They work to contain durst in the work area and maximize the suction motion Aside from rubber flaps, some machines also have two suction hoses, which add to the overall efficiency of its dust control during road sweeping activities

Optional Sweeper Features:

Noise is an issue when using road sweeping vehicles in or near residential areas in Ontario Many new models of regenerative air sweepers provide an optional, “Sound Suppression” feature Usually, a material that deadens sound is attached to the inside of the hopper to reduce the amount of noise released in the vicinity

Another optional feature is a load weight indicator which brightens up when the hopper or containment chamber is about to reach its maximum capacity This feature can help the operator prepare to unload the hopper or request for another sweeper as a replacement Nir Dotan Nir Dotan is a writer and promoter of road sweeping and road sweeping

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Author : Bobby GeorgeJust as the invention of the camera was one of the most important events in history, the invention of the digital camera and digital photography can be seen as one of the most outstanding technological breakthroughs in modern time Digital cameras are faster, easier to use, and capable of more than most standard cameras And with the invention of the digital camera came another convenience with which we now could hardly do without: the rechargeable digital camera battery

Digital cameras use a variety of features which quickly use up available digital camera battery resources Most employ an LCD screen for picture previews, etc ; they often have powerful flashes; and they usually are capable of multiple functions such as image zoom, picture review, wireless printing, color filters, etc Therefore, it is important for anyone serious about digital photography to make sure their camera has a fully-functioning rechargeable digital camera battery To ensure this, it is important to remember some basic tips for keeping a digital camera battery in good shape

The majority of rechargeable digital camera batteries are lithium-ion batteries These are excellent in terms of their power capacities, resistance to failure, and their long life spans However, just as with any rechargeable battery, misuse can cause them to function poorly For example, any rechargeable battery is only good for approximately 500 charge cycles So, if someone puts their digital camera on a charge every time it is not in use, the battery will not last as long as it would if it was allowed to drain most of the way down and only charged when necessary Similarly, although most modern rechargeable digital cameras are designed to stop receiving a charge when they are fully charged, leaving a battery constantly on charge even after it is fully charged may overcharge it to the point of failure

If you find that you rechargeable digital camera battery is not lasting as long as you would like on a full charge, you may need to alter your camera-using practices and the camera settings Many digital cameras have both a screen and a standard viewfinder You can save a ton of power by turning off the LCD and using the viewfinder to take your pictures Using the zoom functions of a digital camera will also drain the battery more quickly So it should be used sparingly by the user seeking maximum battery performance In addition, many users quickly drain their digital camera battery by constantly reviewing their pictures on the camera itself The battery can be saved in this case if the memory card is removed and placed in a nearby computer to view the picture files

Finally, with digital camera batteries dropping in size and price, it is often beneficial to carry a spare battery with you when using your digital camera By doing this, one can instantly double the battery life of any digital camera without having to carry around bulky chargers and accessories If you are interested in an extra battery for your digital camera, online is the way to go Many people can have a new battery for their digital camera shipped directly to their doorstep for much less than they could purchase one for in their local electronic or photography store Bobby George is a technical consultant at Low Cost Batteries Please visit the site for more articles.

bobby@lowcostbatteries.com

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Author : Aydan CorkernYou may have heard of some horror stories associated with antennas Whether it is ghost-like images, fuzziness, distortion, or signal interruptions, there are just some antennas that do not live up to their expectations It’s not that antennas themselves are faulty; some antennas just do not do their job very well For some people, a small, tabletop indoor antenna picks up signals perfectly from a broadcast tower that is 15 miles away Other times, someone using a supposedly “top-of-the-line” antenna might not work on their rooftop, even if the same antenna is being used by a neighbor a few houses down on the same block

Again, it’s not that they’re unreliable For some reason or another, certain antennas will fail and will cause some problems If you are one of those people who have tried many antennas and are simply fed up with the purchasing and returning process, then there is one more option to try before throwing in the towel for good and settling: coat hangers

Yes, coat hangers! They do work, but you have to construct it properly, and you obviously cannot use plastic hangers It will take some time and effort on your part, but taking on this task just might give you a sense of accomplishment and pride, especially when it works!

To make a coat hanger antenna, you will need the following items:
12 washers and 12 wood or drywall screws; A single 2 5 - 3 foot long piece of 2×4 wood; Tape measure; Screwdriver, preferably an electric cordless; Pencil for marking; Pliers with wire cutters; TV cable; and UHF/VHF transformer

First, you will need to use the wire cutters to cut the heads off of the coat hangers Straighten them out and cut them so they are about 14 inches long Then take one of the straightened coat hangers, shape it in to the letter V, and hold it down with the screw and washer at the base of the V Don’t tighten it all the way because you will need to take another hanger and place it on the V so they are touching Once you have them touching, go ahead and tighten the screw and washer all the way Make sure it is tight by tugging on the hangers a little bit

The hanger that touches the V helps conduct the signal to and from each antenna You need to construct it in a way so that the hanger will run across You will want to repeat the process 7 more times until you have 4 V-shaped hangers sticking out of each side The arrangement should resemble a X (the coat hangers) with O’s (the screws and washers) in the X’s four corners

You will then need to attach the two ends of the UHF/VHF transformer to both sides of the conducting hangers Next, you need to attach your cable to the transformer and then to the back of your TV If you did it properly, then you should be able to watch digital TV in crystal clear clarity! Enjoy your new and inexpensive antenna!Aydan Corkern is a writer, HD enthusiast, and promoter of tv antenna and plasma mounts.

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Author : Nir DotanAfter completing a street sweeping and flushing study the city sanitation task of Hamilton, Ontario approved use of regenerative air street sweeping vehicles These vehicles are the latest of their kind Vehicles that not only effectively clean all city streets and recreation areas but reduce the presence of particulate matter in the air and the ground as well!

Compared to the standard mechanical broom or older street sweeper models, regenerative air sweepers utilize cutting edge,modern steet sweeping technologies which makes them a lot more effective and efficient!

New Improved Features:

By far, the improved debris pickup technology is the most important breakthrough that regenerative air sweeper manufacturers have ever come up for street sweeping vehicles A majority of sweepers that have this improved feature have increased debris or leaf pickup power In regenerative air street sweeping machines, high velocity air does an important job in picking up debris off the street In some machines, air is first pressurized in the brushing head’s upper chamber This air is then released into the lower chamber through a nozzle that blasts it through

Another big contributor to the street sweeping effectiveness of this type of sweepers is the angle at which the air blasting nozzles are located Because of the typical angle, the high velocity air that is released can form a knifing effect which is most effective in picking up leaves sticking on the asphalted street and even those located in between cracks

Another improved feature is noise reduction technology that addresses the noise issues that street sweeping machines all over the Greater Toronto Area have In addition, since fan noise contributes greatly to the total amount of noise the machine makes, this is where this breakthrough focuses For many brands of regenerative air sweepers, the blower fan that is responsible for the pressure that brushes debris off the street has been re-engineered to reduce noise up to a considerable percentage

Effective Particulate Matter Collection:

Recent studies made in the Greater Toronto Area have addressed the importance of removing inhalable particulate off the street One of these is PM10 (aka Particulate Matter at 10 micrometers) which is known to contain toxic chemicals such as chromium, manganese and polycyclic aromatic hydrocarbons The sources of these chemicals can vary but can come from fuel combustion in vehicles and construction dusts carried by dump trucks and other industrial vehicles

Because of the added features that regenerative air sweepers have, the capacity to collect PM10 from the street is increased A majority of brushing heads are surrounded by double-belted flaps or “curtains” which contain the dust particles inside a working scope Incidentally, these curtains also maximizes the effect of the vacuum-the opposite air pressure created by the blower which acts to collect debris and dust off the street Compared to older models such as the mechanical brooms previously used in GTA, regenerative air sweepers can be more effective in collecting PM10

Breakthrough Options:

Apart from the added features, some sweepers offer the option of added brooms This option features an additional broom, which can be placed in front of the blast orifice This specialized broom mostly used for getting the hard to remove particles that are often missed with the regular broom

An important feature that comes with this option is the adjustable air blast It can be adjusted to specifically flush and collect wet or packed down debris Nir Dotan Nir Dotan is a writer and promoter of street sweeping and street sweeping

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