Archive for September, 2007

The technology behind satellite radio


The technology behind satellite radio

Any song you hear on satellite radio stars as a recording in a specific format on different recording mediums. IN most cases, the recording quality has to be maintained fairly high, usually around 384kb/s, while also being reasonably small enough to be transported on CDs and DVDs. The music tracks used in satellite radio are cataloged using a similar system to the MP3 cataloging criteria, the ID3 tags. The choice for the music tracks that will be played is made by each channel individually. The DJ selecting the tracks usually chooses about 20-30 minutes worth of music. The DJ has to listen to the tracks to make sure they are in proper condition and then simply lets the computer decode the original file. The same thing is repeated once the initial 20-30 minutes are exhausted and the music playing cycle repeats itself.

Sound encoding in satellite radio

Encoding is one of the key elements of digital radio. Each channel is handled by a different encoder. The encoder basically takes the analog file and turns it into a digital one. The digitalization process is made in real time and the music files are transformed into 1’s and 0’s. This process is carried out by powerful computers that analyze sound waves and frequency and break them into binary code. The encoding process is carried out at 128kb/s, 44.1Kh which is actually CD quality. After the song is encoded, it is transmitted to a multiplexer where other channels are also present – the multiplexer basically takes all the channels of the satellite radio provider and combines them into a single broadcast transmission. The data is then sent to a satellite modem device which modulates the data and sends it to the broadcaster’s satellites, using unique transmission frequencies.
What happens above the Earth
Here is where the satellites are located. They receive the transmission and transmit it to the receivers we have in our homes and cars. The satellites are located at 23,000 miles above us – both Sirius and XM Radio use satellites located at this distance from the Earth. The satellites are located in geo-sync, which means that hey orbit above the location they are designated to service at all times. When the satellite receives the transmission encoded at 128kb/s, 44.1 khz it rebroadcasts it to the geographical area it covers. Both Sirius and XM Radio use satellites that cover certain areas of the United states – mostly the East and West coasts. For example, one of XM Radio’s satellites covers the western part of USA, probably an area located roughly from Seattle to San Diego on the West and Minneapolis to Houston on the east. The increased sound quality is possible because the broadcasted data (music tracks, news, sports transmission don’t get sliced up too many times in the decoding process.

The antenna

The antenna connected to your satellite radio receiver picks up the transmission on L-Band. The recent technological advances have allowed digital radio broadcasters to create receivers small enough to fit mobile locations. In the early days of satellite radio, a large parabolic dish would have to be mounted on the car in order to receive signal. Also, before the more compact receivers were created, the early satellite radio receivers needed electronic movements that directed the dish towards the satellite line of sight. Modern flat panel receivers have eliminated all the problems of their predecessors and can be fitted almost anywhere without taking up too much space.
The receiver and the output
The receiver is the device that decodes the data, basically doing the exact opposite of what the encoding process was like. After receiving the signal from the antenna it amplifies it and converts it to usable sound. The car or home audio system is then able to play the selected satellite radio channel. The rest of the process is exactly like analog broadcasts would work, with an amplifier and speakers outputting the sound.

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The success of satellite radio

Sirius Satellite Radio Inc.

The success of satellite radio

The entertainment industry is one of the most dynamic and attractive ones, and satellite radio has recently captured a large share of it. Audio entertainment products are highly popular today and there is a wide variety of choices when it comes to having good music in your car: regular CD players, car CD players with storage space or MP3 players. When it comes to radio however, there is an even bigger divide – you can listen to or go with one of the new satellite radio offers. The popularity of satellite radio broadcasting has gone sky-high in the past years mostly because it has some exciting benefits that commercial FM/AM programming simply cannot offer. Analog radio stations are not able to broadcast the full range of sounds available through digital satellite radio and this has a noticeable impact on sound quality. Digital radio programs are broadcast through a satellite – this means that users don’t have to switch radio stations every time they get out of a certain geographical area, as the signal is countrywide. Traditional to FM and AM broadcasts have different forms of noise disturbances – satellite radio eliminates this problem as the quality is very close to that of the original tracks it is playing.

Technology and content

Because satellite radio uses such high tech instruments (satellites, small portable receivers many still perceive it as unapproachable and prefer to stick with traditional radio. Most young people, however, can’t wait to get their hands on the latest in technological advancements, so satellite radio is perfect for this age group. The price you had to pay for satellite radio one or two years ago was a bit high for many who decide to enjoy traditional, commercial radio stations instead, as they are free. Today however, for a subscription of around $12 per month, you can receive dozens of excellent news, sports and music radio channels. And the best thing is that they are commercial free. In many ways, satellite radio became popular following the idea of DirecTV’s success – the difference was made through superior broadcast quality, excellent geographical coverage and content. This is in fact the main issue satellite radio broadcasters and terrestrial radio stations are looking at – high quality content is actually the most flexible field where subscribers or listeners can be won or lost. In order to get valuable radio content, many satellite radio offers were made to popular media topics. MLB broadcasts, for example, might be broadcast exclusively on satellite radio stations. Although this is still an assumption, chances are that more and more popular US topics will be exclusively available on different satellite radio programs, whether they are from Sirius, XM Radio or from some new broadcasters that will join the market.

It all comes down to what the consumer wants

And it’s true – it does come to that. Some laughed at the idea of paying for radio – for as long as we have known, radio programs were free. However, the satellite radio industry only followed in the footsteps of cable TV – although all Americans can receive free programs with UHF and VHF antennas, over 80% are willing to pay monthly subscription fees. With $9.95/month for XM and $12.95/month for Sirius, accessibility to satellite radio broadcasts is high and anyone can afford to subscribe. And the truth is that satellite radios have proved, once again, that sometimes a consumer is ready to pay for something they used to get for free as long as the commercials are eliminated. In many cases, out of an hour of radio broadcasting, around 12-15 minutes are commercials – people don’t want such interruptions in their radio programs. Both Sirius and XM Radio knew this when they launched their paid subscription services and they were right, as each company has millions of subscribers today. The satellite radio craze got even larger when it met the auto manufacturing industry – today almost all major manufacturers offer satellite radio receivers as standard or optional with each of their models.

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Wireless Speakers Offer Excellent Sound Selection

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Wireless Speakers Offer Excellent Sound Selection

Technology is constantly evolving and introducing new products to an already full line of home theater products. While not the newest kids on the block, wireless speaker technology is also advancing at a rate that prices are no longer out of reach of the average consumer and the value of being able to move your speakers around without going to the work of rewiring is appealing to consumers on an increasingly large scale.

I always try to keep in mind when buying new electronics and electronic components that this year’s technology will sell at half the price this time next year. For this reason I have a hard time investing in the latest and greatest when it comes to technology and tend to remain exactly one generation behind the curve when buying new products. I like to save money whenever possible and in most cases my like of saving money outweighs my like of having new gadgets and gizmos at the high price they often command.

acoustic-research-aw-822-wireless-stereo-speaker- ACOUSTIC RESEARCH AW 822 WIRELESS STEREO SPEAKER
US $19.00 (0 Bid)
End Date: Thursday Nov-20-2008 19:19:51 PST
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shower-wireless-ipod-mp3-transmitter-speaker-fm-radio Shower Wireless iPod MP3 Transmitter/Speaker/FM Radio
US $19.99
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acoustic-research-wireless-speakers Acoustic research wireless speakers
US $4.99 (1 Bid)
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rocketfish-universal-wireless-rear-speaker-kit Rocketfish Universal Wireless Rear Speaker Kit
US $45.00 (1 Bid)
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acoustic-research-aw-822-wireless-stereo-speaker-new ACOUSTIC RESEARCH AW 822 WIRELESS STEREO SPEAKER NEW
US $24.00 (1 Bid)
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I also have a nasty habit of keeping those products until they are no longer useful at all (I still have my little 13 inch television from my college dorm and I won’t tell you how long ago that was). I will keep it until it no longer works. It is currently being used in my television. I only mention this in order to convey the fact that making a sizeable investment in electronics in most cases is an investment that will last for quite some time unless you are one of those people who has to have the latest and greatest new tech toy each and every year.

Back to my original point wireless speakers have been emerging technology for a few years now. We’ve finally developed enough competition that market prices are trending downwards. This makes now the perfect time to look into the option of purchasing wireless speakers for your home theater. They are still a sizeable investment for the average home theater consumer but well worth it in my opinion for the freedom of choice and movement that they provide.

This is a great add on if you have an existing home theater in place and are considering an upgrade. I think that many people will find that the options this affords makes it well worth the investment that will be required in order to achieve. I strongly recommend however that you do not simply go online and buy the first set of wireless speakers and receiver that you find. This is a serious gamble, as you have no idea what kind of quality you will receive. The best possible recommendation is to make the rounds of local stores and listen to the various systems that are on the market.

Once you’ve found the one wireless sound system that appeals most to you it is time to go online in order to compare prices. Once you’ve found the best price online you should then check your local stores and see if they offer a low price gurantee that will match the online price you found. This is a great way to find better deals and save a little money (by not paying shipping charges).

You should always keep in mind that there are no absolutes when it comes to creating a home theater. You do not have to follow a specific code, or use certain components or even certain seating. The best thing you can do is to create an atmosphere in which you and your family can best enjoy your television and movie viewing experiences. You should keep the sounds you like in mind when selecting speakers and choose speakers that will provide the fullest amount of sound that you are comfortable with the idea of paying your hard earned money in order to purchase. Seriously, this is your money and your home theater is an investment you should take great care to make the best possible investment for your money.

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The development of digital multimedia broadcasting

The development of digital multimedia broadcasting

Satellite radio systems are actually part of a larger group of broadcasting mediums, which specialists refer to as Digital Multimedia Broadcasting or DMB. This digital transmission system is used in order to send data to different receivers such as radios, television sets or mobile phones and PDAs. There are two different ways of using digital multimedia broadcasting - S-DMB which is broadcasting via a satellite or T-DMB which uses terrestrial emitters. The complexity of the entire digital multimedia broadcasting field is huge. Out of all the features and characteristics digital broadcasting offers, satellite radio is probably the most spectacular as it generated immense interest and triggered an intense competition between the two main satellite radio broadcasters, Sirius and XM Radio. The development of satellite radio and other forms of digital broadcasting is spectacular because it offers two main qualities that terrestrial emitters are deficient in: quality and coverage. In the case of satellite radio, for example, the sound quality from a satellite broadcast is much higher than AM or FM broadcasts, as the hissing noises and transmission disturbances are eliminated.

Technical features of digital multimedia broadcasting - overview

Whether it refers to television, satellite radio or cell phone transmissions, digital multimedia broadcasting is based on the Eureka 147 DAB standard. Digital television uses the T-DMB which is made for transmissions on frequency bands III (VHF and L (SHF. T-DMB is an ETSI standard (TS 102 427 and TS 102 428.
T-DMB uses MPEG-4 Part 10 (H264 for the video and MPEG-4 Part 3 BSAC or HE-AAC V2 for the audio. When it comes to satellite radio, there were a few issues to be resolved by the main satellite radio broadcasters. The satellite radio receiver needs to be in the line of sight of the satellite to receive the transmission – and there is the problem of having different landscaping objects block the direct transmission. Land based devices were installed in order to eliminate the lack of direct satellite transmission. Since the wider spectrum of broadcasts has to be covered, digital multimedia broadcasting uses OFDM-4DPSK modulation and a chip of T-DMB receiver is also provided by MPEG-2 Transport Stream De-multiplexer. This helps reduce the negative effects of shadowing and fading, present in many digital transmissions.

The future of digital multimedia broadcasting

The transfer from the analog world to the digital one is obvious in all fields of work. Since digital multimedia broadcasting is developing so quickly, there is a silent battle going on between the new age digital technology and the classic analog one. OF course, many compare the transition from the analog to the completely digital era with the way audio cassettes were replaced by CDs and later on even DVDs. However, the development of digital multimedia broadcasting is slower since it happens on so many levels at the same time. Digital television is taking us into new spaces that are basically hybrids of the features of regular TV and characteristics of the Internet. Satellite radio is also taking huge leaps forward, with more and more programs having satellite radio exclusivity. There are even discussion of moving events like the MLB exclusively on satellite radio, which would provide one of the first deadly strikes against terrestrial radio broadcasting. Digital data transmission is fast and accurate, and so far reality proves that the satellites used in order to facilitate broadcasting and reliable. Most digital multimedia broadcasting companies that own satellites also have backup ones ready to go in orbit and replace a defective one. Some other benefits of digital multimedia broadcasting recommend it as a next step in the development of broadcasting. From the consumer’s point of view, the quality and interactivity options of digital TV or satellite radio broadcasts are important features. Although most digital multimedia broadcasting channels and technologies are still complex and sometimes expensive, the evolution of digital broadcasting seems to be here to stay.

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Why Buy Home Theater Kits

Why Buy Home Theater Kits?

You will find all kinds of homes around the country and around the world. Some are big, some are small, and some are simply average. When you are searching for home theater systems you will find the same thing. This is particularly true of the home theater systems that come as a package deal. While I do not normally endorse these purchases, just as all homes are not alike, neither are all people. This means that what may be best for me and my home theater may not be the best plan of action for you and your home theater.

I definitely recommend listening to any home theater you are considering before taking the plunge and purchasing. There are many times in life when you get what you pay for. While most of us live within some degree of budget constraints you will find that most of us have certain things we simply will not go ‘cheap’ when purchasing. You should keep in mind that there are great ways to get outstanding bargains however, when it comes to purchasing electronics. One of these ways is by purchasing a home theater kit where all the pieces (generally with the exception of the television) are included.

all-in-one-home-theatre-connection-kit-with-comp-video All in One Home Theatre Connection Kit with Comp. Video
US $14.00 (1 Bid)
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220-projector-kit-beats-lcd-plasma-home-theater-1080p 220" Projector Kit Beats LCD Plasma Home Theater 1080p
US $9.95
End Date: Friday Nov-21-2008 17:58:14 PST
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Seeing is believing when it comes to value for most of us. The best way to find a home theater kit that you are going to be confident about purchasing is to take a look at the kit, listen to the speakers (the first 5 to 10 minutes of the movie Top Gun is an excellent test for sound), and take a look at the system to see how you find the interface. It doesn’t matter how great a system sounds if you can’t figure out how to use it once you’ve taken it out of the box. You might also want to look into the price of professional installation if you are electronically challenged when it comes to matters of programming and installation. These kits are also often appealing to those who find the prospect of shopping around for the parts and components tedious.

While it is difficult for me to accept at times, we were not all born shoppers. For people such as this, home theater systems that come as a package deal are often life rings tossed out in a sea of shopping among sharks. This convenience for some is worth any price that could be stamped on the box. The good news is that there is enough competition that prices are typically competitive according to quality.

Box kit home theater systems are appealing to many consumers for many different reasons. Those who live in small apartments or have very small home theater rooms typically find that it makes no sense to invest in a system that will rattle the walls or have the neighbors complaining. Those with limited budgets find that this is an economic way to get everything at once. People who have little time to invest in researching all the items they will need find it incredibly convenient that they will not need to worry about missing something important such as a receiver during the process. Still others find that they like knowing up front what the price for the total home theater experience is going to be, at least the electronics component at any rate.

It is important to remember that a home theater means different things to different people. Finding the ideal home theater for you may not necessarily equate to the ideal home theater for someone else who has grand visions of a cinema themed room with dark rich colors on the walls and muted lighting effects along with blacked out windows for the ultimate movie viewing experience.

Don’t get too caught up in the details and remember that it only has to work for you and your needs. Creating a wonderful home theater is a great way to bring the family together on a regular basis. Buying a pre made home theater kit or system is a great way to begin enjoying the wonderful benefits of a home theater experience while learning the things you like and dislike about your system. This could be a work in progress for many years to come as you learn more about what you do and do not prefer.

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The Great Installation Debate

The Great Installation Debate

One huge questions looms in the minds of many who elect to purchase massive home theater systems for their homes: Do I install it myself or pay for installation? This great debate seems to consume consumers the world over and there really is no easy answer as it completely and entirely depends on your own confidence of your abilities and whether or not you will postpone the work for six months or get right to it once you get your home theater-well home.

In my house it all depends on who wants the product most and who has the ability to handle an installation. I’ve learned that when it comes to things such as home theaters my husband is an ace at getting it done right away. On the other hand I lugged my laundry to the laundry mat for 6 weeks while a washing machine and dryer sat in my basement waiting for him to install them. With this in mind, I pay for installation on anything that I want installed quickly and if it doesn’t matter too terribly much to me, I’ll leave it to him to install on his own timeline.

Of course timing isn’t the only consideration when it comes to the installation of your home theater equipment. Knowledge is actually a key component. If you break something during the course of installation it may not be covered by the warranty, particularly if it is easy to prove that it was broken and not the result of a factory defect. At the same time you do not wish to get down to the last little bit only to discover that one small part is missing, which may actually require you to take everything out, box it up, and return it to the store. Time is money for many of us and going through the installation process twice is not only frustrating it is expensive (even in terms of the amount of our leisure time it robs us of).

There are of course other considerations when it comes to the decision of whether or not to pay the price of professional installation and one of those is the warranty on your home theater system and its components. There are some warranties that are nullified if you do not have your home theater factory or professionally installed. You need to be certain if you are installing your own home theater that your warranty won’t be wasted as a result.

There are positives to consider when it comes to installing your home theater as well. Number one on that list is the amount of money you will save. Professional installation (anything with professional in front of it for that matter) is quite costly and many consumers neglect to consider that when budgeting for their home theaters. In many cases professional installation can be a real deal breaker when it comes to getting the home theater system that you really want.

The second positive when it comes to performing the installation yourself is that you know without a doubt how to take it apart and move the pieces if you ever have the occasion or need to do so (such as a move or the need to repair or replace certain pieces or parts). It is also a good idea to know where everything plugs in and doing the installation yourself will give you a clear indication of that as well.

Finally, there is a sense of pride that comes with knowing you did it yourself and you did it well. Being able to accomplish something that not everyone is able or willing to do on their own is impressive and something you should take great pride in doing. Whether you decide to go with professional installation (there is no shame in this decision) or installing your home theater system for yourself I wish you many years of enjoyment with your new home theater.

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The development of Satellite radio in the United States

The development of Satellite radio in the United States

The satellite radio industry is dominated by two major players - Sirius Satellite Radio and XM Satellite Radio. Both companies charge a monthly fee for their services, but service payment plans often change to attract more customers. For example, starting in 2005 Sirius offers a $500 fee that is valid for the lifetime of the equipment. Sirius offers 65 music channels, without any commercials and traffic and weather reports for most of the major US cities. On the other hand, some of XM Radio’s channels did contain some commercials, but in much smaller quantities than those found on terrestrial radio channels. Today, XM has 67 commercial-free music channels, 21 channels with detailed traffic and weather information, 39 channels of news, entertainment and sports and an amazing number of 23 play-by-play sports channels. XM Satellite Radio Inc. owns the most impressive digital radio equipment and facilities, boasting over 82 end to end broadcasting studios. Sirius Satellite Radio is located in the heart of New York City with a huge recording studio. Sirius Satellite Radio has an impressive library of over 2 million music tracks.

Sirius Satellite Radio

Sirius Satellite Radio is one of the two main providers of digital radio broadcasting in the United States and it shares this important market with XM Radio. While you would think that XM and Sirius are 100% rivals, you will be surprised to find out that both companies are working together on a joint program in order to develop a receiver for both of their broadcast frequencies. Sirius uses three geosynchronous satellites that pass over the United States territory at regular time intervals and transmit the data alternatively. The Sirius satellite network is also located in a position that offers better line of sight – this means that transmission interruptions caused by trees, mountains or any other landscape form are less likely to happen. Sirius announced that the number of subscribers to their services goes beyond the 4 million count

XM Satellite Radio Inc

XM Satellite Radio Inc. began broadcasting in 2001 and has seen a continuous development ever since. The digital radio used by XM Satellite Radio Inc. is encoded using the CT-aacPlus technology which is broadcast in a 128kb/sec format that is high in fidelity and is similar to CD quality. XM Satellite Radio Inc uses two Boeing HS-702 satellites which are constantly orbiting the Earth at a height of 22 300 miles. IN order to minimize transmission ad reception loss, XM Satellite Radio installed terrestrial transmitters in most major cities in places where loss of signal is more likely to take place (tunnels, high building areas. XM radio claims to have an impressive number of over 6 million subscribers.

Working with the automobile industry

Both satellite radio providers saw a huge market in the car industry, so they began negotiating with al major car manufacturers to convince them to offer their services and equipment as standard or optional on the vehicles they produce. Some of the auto manufacturers that have either XM or Sirius satellite radio installed from the factory are: BMW, MINI, Rolls-Royce, Chrysler, Dodge, Mercedes-Benz, Jeep, Ford, Lincoln, Mercury, Volvo, Land Rover, Jaguar, Mazda ,GM, Cadillac, Buick, GMC, Vauxhall, Saab, Honda, Hyundai, Kia, Nissan, Infiniti, Porsche, Lexus, Scion and Audi – to name just a few. Sirius has managed to get exclusivity from major car manufacturers such as Audi or VW2007 through 2012. IT was a major success for Sirius as Audi and VW previously also offered XM radio services and equipment on their vehicles. After conquering the vehicle industry both manufacturers tried to move the success of satellite radio into the homes of consumers by creating some trendy portable satellite radio receivers. XM satellite radio created the XM2go™ line of “walkman-like” receivers and Sirius developed a variety of portable devices, such as the Kenwood Portable Satellite Radio Tuner, Here2Anywhere and the Sirius S50. More attempts are being made for introducing satellite radio in the homes of conservative media consumers.

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Selecting-the-Proper-Television-for-your-Home-Theater.txt

Selecting the Proper Television for your Home Theater

While there are many components that make up the average home theater system most people often overlook the importance of their televisions to the overall video and movie watching experience. As with all things in life, bigger, when it comes to televisions for your home theater, is not always better. There are many things that must be considered when selecting the best possible television for your home theater and size is only one of many.

Mass retailers show televisions in a manner that suits their purpose, which is a sale. This doesn’t mean that their methods for displaying their televisions paints those sets in a proper light for your home viewing experience. Not so long ago, a 20-inch viewing window for your television was considered huge. It was a luxury saved for those who were extremely wealthy. The truth of the matter is that if you do not sit a proper distance from your television the quality of the picture will look horrible if your set is too large.

There are good rules of thumb to consider when purchasing a television set for your room, at least where size is concerned. The rule is that you will want no more than 4″ of diagonal screen inches on your television for every foot away from the set you will be when watching cable television. The rule goes up to 5 inches per foot for satellite television or DVDs, and 6 inches per foot if you are viewing high definition television.

Of course with every rule there are exceptions. For this rule general exceptions would be two story great rooms or cathedral ceilings that might actually call for a larger television and basements or dropped ceilings that might actual be better suited for smaller televisions. You really must consider all of these things when selecting the television that will best suit your needs when it comes to your home theater and your theater set up.

Of course there is more than size to consider when it comes to the television you ultimately choose for your home theater and taste as well as space will each play important roles in the television you should choose. One important consideration is price. When you walk into the store and see all the wonderful new televisions that promise endless hours of movie watching bliss at a very hefty price tag to match. You need to be able to weed through without getting distracted by the latest and greatest of bells and whistles in order to find the set that will meet all of your movie watching needs and fall within your budget.

For this particular trip I recommend walking in with money in hand (the limit you have set) and that you leave the credit card at home. You should also carefully consider whether or not you will want an extended warranty as that will raise the base price of your television and isn’t reflected in the ’sticker’ price. If you bring your credit card you will be tempted to overspend rather than sticking with your original budget.

Other than price you really need to carefully consider the type of television you’d like to have for your home theater. Keep in mind that you can buy larger versions of older technology for the same price you’d pay for smaller screen sizes when it comes to LCD televisions. You should also consider the size of the television you really need for this portion too. Most of us do not sit more than 12 feet from our televisions, which means you may not need quite as much television as you may have previously thought you would need. The most important thing when choosing a television is to remember that this is an investment that most of us do not make terribly often. For that reason you should expect to drop a considerable chunk of change on this particular investment in your home theater system.

The basics of Satellite Radio

The basics of Satellite Radio

Broadcasting digital radio via satellite is not something new and concepts of doings this have been with us for a few years. From the early days of satellite radio, companies like Dish Network have offered digital audio channels as part of their programs. The breakthrough in popularity of satellite radio, however, happened just recently, when the technology became more permissive. Satellite radio was very rare on moving locations, such as boats or cars, mostly because there was the need for some expensive equipment – a tracking dish. This was a strong deterrent which kept satellite radio quite unknown by the general public. Today, however, one can receive digital audio satellite broadcasts by using a small, GPS-like antenna. This greatly increased the feasibility of the satellite radio systems and more and more vehicle owners began considering satellite radios as a good source of music and news.

The birth of satellite radio in the United States

When the U.S. Federal Communications Commission (FCC allocated a spectrum in the “S” band (2.3 GHz for the broadcasting of digital radio services in 1992 no one thought the amplitude that the system would take in the future. From the initial Digital Audio Radio Service (DARS things progressed until two companies were given licenses to broadcast digital radio in 1997. These two were American Mobile Radio (today known as XM Satellite Radio and CD Radio (presently called Sirius Satellite Radio. The fact that satellite radio is nationwide makes it a very attractive media channel, both for commercial and non-profit organizations. The two companies that initiated the development of satellite radio saw the huge potential it had, since it wasn’t confined by the limitations of other terrestrial broadcasters.

Benefits of using satellite radio

Here are some of the most noteworthy benefits of having a satellite radio system:

* No more geographical limitations – since the radio program is broadcast through a satellite you don’t have to switch radio stations every time you leave a certain coverage area.
* The digital quality of the satellite radio has some amazing benefits on its own. There are no noise disturbances that were traditional to FM and AM broadcasts. The transmission is crystal clear and satellite radio receives some valuable points when broadcasting quality is concerned.
* Analog radio stations simply cannot broadcast the full range of sounds available through digital satellite radio.
* Both XM Radio and Sirius Radio can be picked up on all the US territory and they are also available in some parts of Canada and Mexico.

Satellite radio technology

Each of the major satellite radio services uses its own equipment to broadcast the signal to their clients. The competition is tight and customers have to “pick sides” in order to benefit from satellite radio broadcasting. You have to choose your preferred company and purchase adequate receivers for that particular company. Both XM Radio and Sirius Radio provide their clients with different ways of receiving their services. The field where most competition takes place is in the negotiation with the major automobile manufacturers. Both XM Radio and Sirius Radio have deals with the auto industry giants in order to offer their services and equipment as optional on the car models they produce. Other partnerships were created with audio equipment manufacturers, who now offer satellite radio transceivers and matching headsets. The most recent shock in the satellite radio universe was caused by the production of portable MP3 player-like satellite radio receivers.

The future development of satellite radio

One of the main problems of satellite radio was addressed by the main satellite radio broadcasters. Since you need to be in the line of sight of the satellite to receive the transmission, different problems appeared with mobile satellite radio receivers, especially when different landscaping objects blocked the direct transmission. To solve this, land based devices were installed in order to eliminate the lack of direct satellite transmission. Another interesting aspect related to satellite radios is that they approached their service offers from a different perspective than traditional radio broadcasters. Instead of airing commercials they charge a subscription fee. For many people, this is actually the best alternative, since they get an almost 100% content broadcast (whether it’s music or talk shows without the 10-12 minutes per hour of annoying commercials. In most cases, the monthly subscription for satellite radio is of around $12.

727

Selecting the Proper Television for your Home Theater

Selecting the Proper Television for your Home Theater

While there are many components that make up the average home theater system most people often overlook the importance of their televisions to the overall video and movie watching experience. As with all things in life, bigger, when it comes to televisions for your home theater, is not always better. There are many things that must be considered when selecting the best possible television for your home theater and size is only one of many.

Mass retailers show televisions in a manner that suits their purpose, which is a sale. This doesn’t mean that their methods for displaying their televisions paints those sets in a proper light for your home viewing experience. Not so long ago, a 20-inch viewing window for your television was considered huge. It was a luxury saved for those who were extremely wealthy. The truth of the matter is that if you do not sit a proper distance from your television the quality of the picture will look horrible if your set is too large.

There are good rules of thumb to consider when purchasing a television set for your room, at least where size is concerned. The rule is that you will want no more than 4″ of diagonal screen inches on your television for every foot away from the set you will be when watching cable television. The rule goes up to 5 inches per foot for satellite television or DVDs, and 6 inches per foot if you are viewing high definition television.

Of course with every rule there are exceptions. For this rule general exceptions would be two story great rooms or cathedral ceilings that might actually call for a larger television and basements or dropped ceilings that might actual be better suited for smaller televisions. You really must consider all of these things when selecting the television that will best suit your needs when it comes to your home theater and your theater set up.

Of course there is more than size to consider when it comes to the television you ultimately choose for your home theater and taste as well as space will each play important roles in the television you should choose. One important consideration is price. When you walk into the store and see all the wonderful new televisions that promise endless hours of movie watching bliss at a very hefty price tag to match. You need to be able to weed through without getting distracted by the latest and greatest of bells and whistles in order to find the set that will meet all of your movie watching needs and fall within your budget.

For this particular trip I recommend walking in with money in hand (the limit you have set) and that you leave the credit card at home. You should also carefully consider whether or not you will want an extended warranty as that will raise the base price of your television and isn’t reflected in the ’sticker’ price. If you bring your credit card you will be tempted to overspend rather than sticking with your original budget.

Other than price you really need to carefully consider the type of television you’d like to have for your home theater. Keep in mind that you can buy larger versions of older technology for the same price you’d pay for smaller screen sizes when it comes to LCD televisions. You should also consider the size of the television you really need for this portion too. Most of us do not sit more than 12 feet from our televisions, which means you may not need quite as much television as you may have previously thought you would need. The most important thing when choosing a television is to remember that this is an investment that most of us do not make terribly often. For that reason you should expect to drop a considerable chunk of change on this particular investment in your home theater system.

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