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utorak, 12.09.2006.

some information about satellite TV

Satellite television or satellite TV is television delivered by way of orbiting communications satellites located 37,000 km above the earth's surface.

The first satellite TV signal was relayed from Europe to the Telstar satellite over North America in 1962. The first domestic North American satellite to carry television was Canada's Anik 1, which was launched in 1973.

Satellite TV, like other communications relayed by satellite, starts with a transmitting satellite antenna located at an uplink facility. Uplink satellite dishes are directed toward the satellite that its signals will be transmitted to, and are very large, as much as 9 to 12 meters (30 to 40 feet) in diameter. The larger the satellite dish, the more accurate positioning and improved signal reception at the satellite. The satellite TV signals is transmitted to devices located on-board the satellite called transponders, which retransmit the satellite signal back towards the Earth at a different frequency.

The satellite signal, quite weak after traveling through space, is collected by a parabolic receiving dish, which reflects the weak signal to the dish's focal point and is received, down-converted to a lower frequency band and amplified by a device called a low-noise block down converter, or LNB.

A new form of satellite antenna, which does not use a directed parabolic dish and can be used on a mobile platform such as a vehicle, was recently announced by the University of Waterloo. On commonly known as car satellite system.

The satellite TV signal, now amplified, travels to a satellite TV receiver box through coaxial cable (RG-6 or RG-10; cannot be standard RG-59) and is converted by a local oscillator to the L-band range of frequencies (approximately). Special on-board electronics in the receiver box help tune the signal and then convert it to a frequency that a standard television can use.

As you known, satellite TV business in United States are mainly dominated by two companies, Dish Network and DirecTV. If you would like to have a satellite TV in your home, your choices are mostly limited to the free satellite TV packages that offered by either one Dish Network or DirecTV.

but see also what American Satellite offers

The Art and Science of Computer Game Design

For anyone that enjoys playing computer games, a career and computer game design would be a dream come true. What could possibly the more enjoyable and rewording then designing your own computer game and actually being paid for it? Some designers are paid very, very well indeed. Every fan of computer games has no doubt at least occasionally fantasized having a career in computer game design, as a gamer myself, I have thought about how cool that would be myself.



If you are dreaming of a job in the computer game design industry, the good news is it’s a huge industry and there are loads of jobs available and it pays remarkably well if you should happen to come up with a hot seller. The bad news is that it is very difficult to learn the requisite programming skills that are required. Getting a degree in computer science is a solid beginning, but there's nothing easy about achieving that either. Of the six friends I had in college that were computer science majors, only one of them has the fortitude to see it through and actually get a degree. It is a grueling major filled with advanced mathematics classes and tedious programming exercises. You really have to be smart, and you really have to be motivated.

If these things sound like something you could handle that a computer game design career may be something you could do. You will definitely need a deep abiding affection for computer games, but that's pretty obvious isn't it? My college friend that got his computer science degree is currently working for a well knowing game design company, and absolutely loves it. He will tell you though, that it is nowhere near the fun and games that he first imagined it would be.

Computer games today have absolutely huge amounts of complex code and can take years to complete. In the infancy of the game industry, computer game design teams often consisted of just a few people. Nowadays, a lot of the games have many different production teams all working simultaneously on a project, with each working in their own field of expertise.

For the really skilled programmers, there is no limit to what you can achieve. Experienced programmers with a proven track record under their belts can not only command a large salary but can have a lot of creative input over the direction of the game.

There are some other job in the computer game design industry and programming does not interest you. Generally, programmers are the most sought after, but good graphic artists and writers can be attractive employees to say game design producers. They may not be paid as well, but they most certainly still make an excellent living in the ever burgeoning industry of computer game design.

petak, 08.09.2006.

Computer Work for the Work from Home Boss

Computer work for the work from home boss can come in many varieties. You don’t have to be a computer whiz in order to become a work from home boss. The truth is there are a number of opportunities for becoming your own work from home boss that require very little computer knowledge at all.

For those would be work from home bosses that are very comfortable with the computer, there are several programming careers available. The need for those knowledgeable in programming has been increased by the ever-increasing importance of the Internet. Many businesses and organizations need an up-to-date interactive website in order to draw in new customers and to keep them. If you have the knowledge, as your own work from home boss you can help set up some great programs for these sites and you can do it from the comfort of your home.

Graphic design is an excellent career for the work from home boss. It is a career that is booming thanks to the Internet. With your graphic design and/or web design skills, as your own work from home boss you can make a very attractive web site for businesses. Or, you might create ad copy for businesses, such as postcards and brochures, by using your graphic design skills.

If you are not comfortable as a work from home boss getting into the technical aspects of computer careers, you might want to pursue freelance writing. Freelance writers contribute their words to web sites, magazines, books, newspapers, and ad copy. There is such a wide variety of freelance writing needing to be done, you will be certain to find an area you particularly enjoy writing for.

As your own work from home boss you will find that computer freelance writing work from home careers have really taken off due to the Internet. Many websites are in need of quality written content in order to draw traffic to their sites. This has spawned what is known as SEO, or search engine optimization, writing. This type of writing involves the use of keywords or keyword phrases that need to be used repeatedly throughout an article. By doing so, it increases the likelihood of search engines finding the site when a computer browser enters certain words and phrases into the search engine.


If you are not comfortable coming up with your own words as freelance writer, as your own work from home boss you can take advantage of computer transcription work. With this type of work, all you need to do is type out what you hear from audio that is sent your way. If you are a fast typist who is not technologically savvy, this type of work may be ideal for you.

With so many opportunities for computer work, there is no reason not to pursue one of these great chances to become your own work from home boss while working from the comfort of your home.

	rujan, 2006
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