How Does Satellite TV Work

Satellite TV is a buzzword among the techno-buff community as well as the television viewers. How does satellite television work? How do satellites facilitate television-viewing? An understanding of the technology behind the working of a satellite TV can provide us with the answers. Let's find them.

What is Satellite TV

Satellite TV is the television system wherein communication satellites orbiting the Earth bring about the transmission of television signals. It is a wireless system that facilitates the relay of TV programs by means of satellite communication. In many countries around the world, satellite television services are used for providing the consumers with more number of TV channels and a wider range of services. Do you know when the first satellite TV signal was relayed? It was way back in 1962 that the first satellite television signal went from Europe to the Telstar satellite over North America. Anik 1, a domestic geostationary satellite of Canada was the first of its kind to carry television signals. From then, there was no looking back and the popularity of satellite television continues to rise.

How does Satellite TV work?

The satellites that aid the transmission of television signals have elliptical or geostationary orbits. The satellite television setup consists of a transmitting antenna or uplink satellite dishes pointed towards specific satellites. The dishes have large diameters, which help in increasing the signal strength and enable accurate aiming at the satellite.

The satellite houses transponders, which receive signals from the antenna. The uplinked signals are tuned to a frequency range that corresponds to that of the transponders. The transponders retransmit the signals back to Earth. Before they are retransmitted, the signals undergo a process of translation wherein they are transmitted at a different frequency band in order to avoid interference with the uplink signal.

The signals that are transmitted by the transponders on a satellite are received by the parabolic dish. On account of traveling a substantially large distance, the signal received by the dish is weak. The signal is reflected towards the feedhorn, a device mounted at the focal point of the dish. The function of a feedhorn is to collect the received signal and conduct it towards the low-noise block downconverter (LNB).

The LNB amplifies the signal and converts it to a frequency that is suitable for transmission over a cable, precisely to the L-band range. The LNB transmits the signal over the intra-facility link (IFL) to the satellite receiver. IFL refers to the coaxial cable that connects the indoor and outdoor satellite equipment. Owing to the LNB, the handling of L-band signals becomes easy. Also, low-cost cables can be used to connect the television receiver with the TV dish and the LNB. The satellite receiver sends the signals to the television set and it is ready to come alive!

While you are lazily flicking through television channels, the satellite communication system is busy delivering content. So the next time you switch on your TV, I am sure, you will take a moment to think of all that goes behind the relay of radio signals to your television set.

Dish Network TV Guide

The Dish Network TV guide allows you to install the service by entering the zip code and selecting the satellite. The Dish Network program guide has a calendar-like interface and shows channel number and channel name. It also shows the start and end time of a show, and the time left for the current show to end.

With Dish Network, the viewer can browse through the schedule while seeing a show. The Dish Network TV guide shows the MPAA rating of the movie, which can be G, PG, PG-13 or R. It also shows the names of the actors and actresses in the movie. It also indicates whether the TV show is close captioned or not. Close captioning means the viewer sees subtitles on screen. The viewer also sees the names of the characters on screen, and other information such as whether the character is screaming or whispering. The Dish Network programming guide also indicates whether the sound is in stereo or not. If it is in stereo, the sounds coming from the left and right speakers are different, unlike in mono in which the sounds coming from both the speakers are same.

The viewer can plan ahead with the Dish Network TV guide, because it shows what's on TV tomorrow and even the day after tomorrow. With Dish Network guide, it is possible to group shows together, according to the theme or the type of show. For example, the guide groups all news shows or sports shows together. Other categories are movies, family, education, series, music and religious. The viewer can also search for a TV show or movie, by using keywords such as title or name of actor.

The viewer can make a custom guide, which is a list of all his favorite channels. The viewer can also be notified when a TV show or movie is on by setting the timer. The viewer can also use the event timer as an alarm clock. The auto-tune feature automatically changes to a particular channel at a specific time. The Dish Network program guide also shows the news and weather and allows users to play games.

Dish Network TV guide is better than a cable TV guide, which has some problems. Channel surfing is slower with cable TV because if the difference between the channel numbers is large, then jumping from one channel to another is slow. The cable TV listings are difficult to read because there is no space to fit the description of the TV show or movie. Sometimes, the viewer only sees one word of the title of the TV show or movie. With cable TV, it is also not possible to group news shows or sports shows together neither is it possible to make a favorite list of the channels the viewer likes the most.

The packages that Dish Network offers are Dish Family (50 channels), Bronze (100 channels), Silver (200 channels) and Gold (250 channels). Dish Network also offers movie channels such as HBO, Starz, Showtime and Cinemax and local channels from CBS, ABC, NBC and Fox for most regions. The viewer can watch HDTV shows by using a HDTV receiver, which is given free by Dish Network. A DVR is also available for free, to record shows that the viewer likes.

The future of Dish Network is very bright. Satellite TV, in which the two major players are Dish Network and DIRECTV, give better value for money than cable TV because they provide more channels. It is possible that Dish Network will become more popular than cable TV companies such as Comcast, Time Warner, Cox and Charter. Also, the Dish Network TV Guide may introduce more features in the future, to make it more functional and user-friendly.

KEF Blade

KEF Blade

When KEF gave their engineers free rein to create a fitting showcase for their technology leadership, they developed a revolutionary prototype that looked and performed like no other: Concept Blade, the world's first single apparent source loudspeaker.

Its phenomenal sonic capabilities met with such praise that they decided to produce an edition that serious audiophiles could actually own. After two years of painstaking refinement - and in time to mark 50 years of KEF innovation - Blade is the result.

Conceived from the outset to extend the boundaries of high end audio, it’s a unique synthesis of innovative engineering and groundbreaking design based on a new architecture that achieves the ideal point source to which all speakers aspire. This is because the four sophisticated new bass drivers are configured so that their combined acoustic centre occupies exactly the same point in space as that of the Uni-Q HF/MF array, so the sound appears to emanate from a single, flawlessly coherent source.

Sculptural and acoustically inert, the slender parabolic enclosures are engineered never to interfere with the purity of the output. The advanced new hybrid cones are so light and rigid that their natural break-up point is never reached within the required frequency range. Inside, you find ingenious new venting, bracing and wave management technologies. Meticulously specified, super-premium components - every one operating so comfortably within its performance envelope that you experience noticeably more precise imaging than is possible with conventional speakers. What you hear sounds as if it’s live - emotionally engaging, richly musical and effortlessly natural. A revelation, pure and simple.

KEF Blade, IS Europe Exhibition

Another fact that makes the KEF Blade a worthy contender for one of the best high end reference speaker is the fact that you do not need a huge power amp to drive the unit. At the IS Europe Exhibition they used a Arcam integrated stereo amp. The sound was out of this world, even within the huge hall with thousand of people and hundreds of stands the sound cut through all the noise to give accurate and atmospheric sound, fabulous speaker!

Design

Three-way bass reflex, Single Apparent Source driver configuration

Drive Units - Uni-Q driver array:

MF: 125mm (5in.) Li-Mg-Al /LCP hybrid cone

HF: 25mm (1in.) Al dome

Bass units: LF: 4 x 225mm (9in.) with force cancelling

Frequency Response

40Hz - 35kHz +/- 3dB

28Hz - 45kHZ +/- 6dB

Harmonic Distortion

2nd and 3rd harmonics (90dB/1m):

<0.5% 40Hz - 100kHz

<0.2% 200Hz - 10kHz

Crossover Frequencies

350Hz, 3kHz

Amplifier Requirements

50-400W

Sensitivity (2.83V/1m) - 90dB

Maximum output (SPL) - 117dB

Nominal impedance - 4 Ohms (3.2 Ohms min.)

Weight - 57.2 kg (126 lbs)

Dimensions

(H x W x D)

1590 x 363 x 540 mm

62.5 x 14.3 x 21.2 in.

Standard finishes

Gloss black or gloss white

Custom colors

Garnet, Sapphire, Grigio, Racing red, Racing blue,

Pale gold, Orange sorbet, Graphite, Stardust,

Lemon sorbet, Lime sorbet or Snow white

Home Theater Projectors

With the advent of home theaters the craze of watching movies in a real theater has faded out to a considerable extent. More and more people are looking forward to watch the much awaited and most favorite movies in the cozy comfort of their homes. Therefore the new buzzword is Home Theater. Home Theater consists of a projector and a screen.

Home Theater Projector
The projector is the device that helps in displaying the image as a response to an image output signal from the image supply apparatus like the computer or the DVD player. Initially projectors were used for conferences and meetings, presentations, exhibitions and demonstrations and those projectors were known as data projectors since they only displayed statistical graphs, surveys and documents but now they are being used for the purpose of entertainment.

Home theater projectors refer to the Front Projectors, which are ceiling mounted or placed on a shelf or in the most common cases placed on a table. It can also be used in a rear screen arrangement but then space poses a problem for rear screen arrangement. Most of the home theaters are widescreen-producing images. They are designed to operate in a dark room to facilitate clear picture, if that is not possible you a more powerful projector should be chosen. Modern Home Theater projectors use technology like The LCD, DLP and LCOS. Each technology is being tried and each has its own set of advantages and disadvantages. Most of the projectors are networked essentially with a receiver, a Home theater PC, speakers, screen, DVD player, cable box and a satellite box. Built-in or All-in-one home theaters are also available in the market. The rear projector consists of an image generator, which generates a projection image, a case that accommodates the generator, a reflection mirror and a transmissive screen. The reflection mirror reflects the projected image.

Home theater projectors generate a big picture that is not appropriate for small rooms. The other disadvantage is that the light has to be minimum since the pictures are projected with the help of a light source and any other light coming from any other source interferes with it. To have the best results the home theater has to be dedicated with a separate room, which is dark and is big enough for all the paraphernalia of the projector and the home theater.The cost of a projector can cost more than the television or the screen to be precise. The projectors can cost around $3000.

Home Theater Projection Screen
In a home theater the images are displayed on the projector screen projected from the projector. These screens provide excellent picture quality and are one of the trendiest home accessories in modern times. It is one of the most important parts of a home theater system besides the projector. The screen can either be a front projection screen or a rear projection screen. Flat screens are the most appropriate ones for front projection screen that are retractable and you have the option of rolling it up. Most of the screens have the velvet covering so that the extra light can be absorbed. The type of projectors that are being used, the seating arrangement and the distance between the screen and the projector should determine the screen type. There are Plasma and LCD screens as well, which have great picture quality. They are very convenient but also very expensive. Plasma Screens are susceptible to Burn-ins and consumers do complain that displays on a plasma screen are big enough but then the image if left on the screen for long time actually causes damage. A flat Plasma screen can be beneficial since it is compact and real pleasure to the eyes.

Best HDTV for Gaming

The latest trend in the international market is HDTV. People everywhere are opting for it and searching for the best deals available in it. HDTV (High Definition Television) has changed the look and technology of our standard TV sets and given us a new vision that defines the meaning of clarity. If you want to know the difference between HDTV and standard TV sets, just keep them adjacent to each other and you will notice the difference of the picture. You will obviously feel that HDTV is a better purchase. Now people all over the world like to view their favorite movies and TV shows on the latest HDTV for the better picture quality. In this large group of people, there exist gamers who like to see their games played on a clear screen which offers a better resolution and the search for best HDTV for gaming is an important task for a dedicated gamer.

Display is everything when you play games, so it's quite obvious that you need to know about the best HDTV for gaming. Never be under the impression that a big monitor is enough for perfect gaming, it's also very important that you have the best HDTV brand that offers you a much better picture and brightness than a standard television set.

Best LCD HDTV for Gaming

Gamers are always advised to purchase LCD TVs as they don't suffer from common heating or burning problems, they are available in many screen sizes and recently have become very affordable. When you think of buying the best HDTV for gaming, it's recommended that you purchase a model which has a PC input and minimum 3 HDMI inputs so that you can play your various game consoles like PS3, Microsoft Xbox 360, and Nintendo Wii game console. Many new models of HDTV come with a game mode that reduces lag, which is a major concern for many gamers. For more understanding about HDTV, I advise you to read this article on how and which HDTV works to make your gaming experience even better.

Sharp Aquos LCD Gaming TV
The Sharp Aquos for gamers comes with a full 1080p resolution for improved picture quality and 10,000:1 dynamic contrast ratio which offers you the clearest and a wide range of colors. It also comes with an added feature which is known as the 'Vyper Drive'. This technology eliminates game lag which is a major concern for hardcore gamers the world over. It's also equipped with six side terminals so that you can easily plug in or plug out devices without reaching for the back.

Sony Bravia KDL-42XBR6
Critics call Sony Bravia KDL-32XBR6 a world leader when it comes to picture quality and it stands up to its reputation. It's one of the most preferred brand when it comes to LCD gaming with 1080p and a fairly low input lag. It's loaded with 4 HDMI inputs and has a PC input for connecting all of your HD equipment. The Bravia XBR comes with enhanced features like Xross Media Bar with 3D graphics and an integrated TV guide program which makes it the best 42 inch LCD TV in its class.

Vizio VO32LF SRS
Another LCD which is ideal for gaming is the Vizio VO32LF SRS. It's got surround sound and a high-definition resolution and side terminals for easy access. Vizio TV reviews state that this impressive gaming TV set boasts of a 178 degree viewing angle, so it's a great buy for people who like having friends while playing games. For great sound quality, include an SRS Labs TruSurround XTTM.

Best HDTV for Gaming 2010

While selecting the best HDTV for gaming 2010, you need to decide between LED TV (Light Emitting Diode), LCD TV and Plasma TV. With the introduction of the new 3D technology, LED backlit TVs are selling like hot cakes. So here are some names of the best HDTVs for gaming.

• Samsung LN32A650 32
• Sony Bravia KDL-32XBR6
• Panasonic TC-37LZ800
• Samsung LN52A650
• Samsung LN52A650A
• Hannspree HG281DPB
• Sharp LC-32GP1U
• Sony KDS-R60XBR2
• Samsung LN-T4665F

I hope this article has answered your question of what is the best HDTV for gaming. If you are confused between LCD and plasma, then you need to first know what is the difference between plasma and LCD before deciding on one. For a better deal it's advisable to buy these TV sets on festive occasions and holidays.

Closed Captioning For Movie Theaters

Have you ever been to a crowded movie and been distracted by the audience? Between the whispering and laughing, popcorn crunching, and sometimes even cell phones ringing, outside noise can really ruin your movie-watching experience. Closed captioning would certainly solve this problem. As of right now, closed captioning is mandatory for virtually all television programs, as required by the FCC. Can movie theaters be far behind?

Consider all the benefits of closed captioning. Most importantly, closed captioning makes TV accessible for the deaf community. It can also be a helpful tool for those who don't have a good grasp on the English language. Finally, closed captioning is beneficial for any person who just wants to watch their favorite TV show among the distractions of everyday life. Now how would this translate to the big screen?

Of course, all the above benefits would still remain, but with the added element of the crowd. Movie theaters are crowded places. Closed captioning would alleviate those issues and make the experience a better one for everyone. Not to mention the benefits for the deaf community. In fact, ever since silent movies gave rise to the "talkies", the deaf and hard of hearing community have been excluded from a pastime that almost all Americans enjoy. With the integration of closed captioning, the deaf community would for the first time in their lives be able to enjoy an outing to the movies just as others have done for decades.

So, what strides are currently being taken to bring closed captions into America's movie theaters? Right now there are three technologies that are sparsely used for close captioning at the movies. They are: open captioning, rear window captioning, and cinema subtitling systems. The National Association for the Deaf (NAD), along with the Coalition for Movie Captioning (CMC) are currently working hard to incorporate these captioning systems into all movie theaters. They are establishing a set of standards for close captioning that must be adhered to, in terms of readability, font size, background, and color. Most importantly, though, they are working on formulating the terms of proposed national legislation to be passed by congress and signed by the President. This legislation would require close captioning for all movie theaters, similar to what the Federal Telecommunications Act did for television.

So just think-- perhaps sometime soon, you will be able to enjoy a movie without having to worry about missing critical parts due to distractions in the theater! In the meantime, companies such as Video Caption Corporation continue to provide the best in closed captioning for all television programs, including movies!

EBTB Terra MK3

My Thoughts

I had only a very limited time with the Terra MK3 with the SubTerranean at the IS Europe Exhibition. Through the endless stands its sound and looks captured me like Freddy Kruger grabbed so many teens through a TV or window when I passed the Everything but the Box stand. Ridiculous how so much sound and brilliance can come from something so wrong, or rather, out of the Box. Well worth considering if you want something different, something unique, something good.

Terra

Terra MK3

Aluminium enclosure 

Composite baffle 

Aluminium feet 

Aluminium pads 

Handle 

Aluminium horns 

Equalizer on the High Frequencies 

Gold plated connectors - Supra

Stainless steel logos

Specifications

Frequency response: 59-25kHz
Nominal impedance: 8 ohms
Sensitivity: 86db 1 watt/1 meter 
RMS Power: 150 W
Tweeter: 30 mm silk, neodymium
Bass-mid: 4” neodymium, shielded
Dimensions: 38 cm X 21 cm X 28 cm (H W D)
Weight: 5 Kg