Monday, November 11, 2013

Introduction and Brief History of Satellites and Communication Satellites

Introduction and Brief History of Satellites

Introduction and Brief History of Satellites and Communication Satellites

Introduction and Brief History of Satellites and Communication Satellites

Introduction and Brief History of Satellites and Communication Satellites

A satellite is any object that orbits another object (which is known as its primary). All masses that are part of the solar system, including the Earth, are satellites either of the Sun, or satellites of those objects, such as the Moon. It is not always a simple matter to decide which is the 'satellite' in a pair of bodies. Because all objects exert gravity, the motion of the primary object is also affected by the satellite. If two objects are ufficiently similar in mass, they are generally referred to as a binary system rather than a primary object and satellite. The general criterion for an object to be a satellite is that the center of mass of the two objects is inside the primary object. In popular usage, the term 'satellite' normally refers to an artificial satellite (a man-made object that orbits the Earth or another body).

In May, 1946, the Preliminary Design of an Experimental World-Circling Spaceship stated, "A satellite vehicle with appropriate instrumentation can be expected to be one of the most potent scientific tools of the Twentieth Century. The achievement of a satellite craft would produce repercussions comparable to the explosion of the atomic bomb..."

The space age began in 1946, as scientists began using captured German V-2 rockets to make measurements in the upper atmosphere. Before this period, scientists used balloons that went up to 30 km and radio waves to study the ionosphere. From 1946 to 1952, upper-atmosphere research was conducted using V-2s and Aerobee rockets. This allowed measurements of atmospheric pressure, density, and temperature up to 200 km. The U.S. had been considering launching orbital satellites since 1945 under the Bureau of Aeronautics of the United States Navy. The Air Force's Project RAND eventually released the above report, but did not believe that the satellite was a potential military weapon; rather they considered it to be a tool for science, politics, and propaganda. Following pressure by the American Rocket Society, the National Science Foundation, and the International Geophysical Year, military interest picked up and in early 1955 the Air Force and Navy were working on Project Orbiter, which involved using a Jupiter C rocket to launch a small satellite called Explorer 1 on January 31, 1958.

On July 29, 1955, the White House announced that the U.S. intended to launch satellites by the spring of 1958. This became known as Project Vanguard. On July 31, the Soviets announced that they intended to launch a satellite by the fall of 1957 and on October 4, 1957 Sputnik I was launched into orbit, which triggered the Space Race between the two nations.

The largest artificial satellite currently orbiting the earth is the International Space Station, which can sometimes be seen with the unaided human eye.

Types of satellites

· Astronomical satellites: These are satellites used for observation of distant planets, galaxies, and other outer space objects.

· Communications satellites: These are artificial satellites stationed in space for the purposes of telecommunications using radio at microwave frequencies. Most communications satellites use geosynchronous orbits or near-geostationary orbits, although some recent systems use low Earth-orbiting satellites.

· Earth observation satellites are satellites specifically designed to observe Earth from orbit, similar to reconnaissance satellites but intended for non-military uses such as environmental monitoring, meteorology, map making etc. (See especially Earth Observing System.)

· Navigation satellites are satellites which use radio time signals transmitted to enable mobile receivers on the ground to determine their exact location. The relatively clear line of sight between the satellites and receivers on the ground, combined with ever-improving electronics, allows satellite navigation systems to measure location to accuracies on the order of a few metres in real time.

· Reconnaissance satellites are Earth observation satellite or communications satellite deployed for military or intelligence applications. Little is known about the full power of these satellites, as governments who operate them usually keep information pertaining to their reconnaissance satellites classified.

· Solar power satellites are proposed satellites built in high Earth orbit that use microwave power transmission to beam solar power to very large antenna on Earth where it can be used in place of conventional power sources.

· Space stations are man-made structures that are designed for human beings to live on in outer space. A space station is distinguished from other manned spacecraft by its lack of major propulsion or landing facilities -- instead, other vehicles are used as transport to and from the station. Space stations are designed for medium-term living in orbit, for periods of weeks, months, or even years.

· Weather satellites are satellites that primarily are used to monitor the weather and/or climate of the Earth.

· Miniaturized satellites are satellites of unusually low weights and small sizes. New classifications are used to categorize these satellites: minisatellite (500-200 kg), microsatellite (below 200 kg), nanosatellite (below 10 kg).

Orbit types

Many times satellites are characterized by their orbit. Although a satellite may orbit at almost any height, satellites are commonly categorized by their altitude:

· Low Earth Orbit (LEO: 200 - 1200km above the Earth's surface)

· Medium Earth Orbit (ICO or MEO: 1200 - 35286 km)

· Geosynchronous Orbit (GEO: 35786 km above Earth's surface) and Geostationary Orbit ( zero inclination geosynchronous orbit). These orbits are of particular interest for communication satellites and will be discussed in detail later.

· High Earth Orbit (HEO: above 35786 km)

The following orbits are special orbits that are also used to categorize satellites:

· Molniya orbits: Is a class of a highly elliptic orbit. A satellite placed in this orbit spends most of its time over a designated area of the earth, a phenomenon known as apogee dwell. Molniya orbits are named after a series of Soviet/Russian Molniya communications satellites that have been using this class of orbits since the mid 1960s.

· Heliosynchronous or sun-synchronous orbit: A heliosynchronous orbit, or more commonly a sun-synchronous orbit is an orbit in which an object always passes over any given point of the Earth's surface at the same local solar time. This is a useful characteristic for satellites that image the earth's surface in visible or infrared wavelengths (e.g. weather, spy and remote sensing satellites).

· Polar orbit : A satellite in a polar orbit passes above or nearly above both poles of the planet (or other celestial body) on each revolution.

· Hohmann transfer orbit: For this particular orbit type, it is more common to identify the satellite as a spacecraft. In astronautics and aerospace engineering, the Hohmann transfer orbit is an orbital maneuver that moves a spacecraft from one orbit to another.

· Supersynchronous orbit or drift orbit : orbit above GEO. Satellites will drift in a westerly direction.

· Subsynchronous orbit or drift orbit: orbits close to but below GEO. Used for satellites undergoing station changes in an eastern direction.

Communication Satellites

A communications satellite (sometimes abbreviated to comsat) is an artificial satellite stationed in space for the purposes of telecommunications. Modern communications satellites use geosynchronous orbits, Molniya orbits or low Earth orbits.

For fixed services, communications satellites provide a technology complementary to that of fiber optic submarine communication cables. For mobile applications, such as communications to ships and planes satellite based communicationis only the viable means of communications as application of other technologies, such as cable, are impractical or impossible.

Early missions: The origin of satellite communication can be traced to an article written by Arthur C. Clarke in 1945. He suggested that a radio relay satellite in an equatorial orbit with a period of 24 hours would remain stationary with respect to earth's surface and can be used for long-range radio communication, as it will over come the limitations imposed by earth curvature. Sputnik 1, The world's first artificial (non communication) satellite, was launched on October 4, 1957. The first satellite to relay communications was Project SCORE in 1958, which used a tape recorder to store and forward voice messages. It was used to send a Christmas greeting to the world from President Eisenhower. NASA launched an Echo satellite in 1960. This 100-foot aluminized Mylar balloon served as a passive reflector for radio communications. Courier 1B, (built by Philco) also was launched in 1960, was the world's first active repeater satellite. Given below are the details of milestones in satellite communcation history: -

· Herman Potocnik - describes a space station in geosynchronous orbit - 1928

· Arthur C. Clarke - proposes a station in geosynchronous orbit to relay communications and broadcast television - 1945

· Project SCORE - first communications satellite - 1958

· Echo I - first passive reflector satellite - August 1960

· Courier 1B - first active repeater satellite - October 1960

· Telstar - the first active direct relay satellite designed to transmit television and high-speed data communications. Telstar was placed in an elliptical orbit (completed once every 2 hours and 37 minutes), rotating at a 45° angle above the equator. July 1962

· Syncom - first communications satellite in geosynchronous orbit. Syncom 2 revolved around the earth once per day at constant speed, but because it still had north-south motion special equipment was needed to track it. 1963

· OSCAR-III - first amateur radio communications satellite - March 1965

· Molniya - first Soviet communication satellite, highly elliptic orbit - October 1965

· Early Bird - INTELSAT's first satellite for commercial service - April 1965

· Orbita - first national TV network based on satellite television - November 1967

· Anik 1 - the first national satellite television system, Canada, - 1973

· Westar 1, the USA's first geosynchronous communications satellite - April 1974

· Ekran - first serial Direct-To-Home TV communication satellite 1976

· Palapa A1 - first Indonesia communications satellite - July 8 1976

· TDRSS - first satellite designed to provide communications relay services for other spacecraft. - 1983

· Mars Global Surveyor - first communications satellite in orbit around another planet (Mars) - 1997

· Cassini spacecraft relays to Earth images from the Huygens probe as it lands on Saturn's moon, Titan, the longest relay to date. -- January 14, 2005

Depending on the need the communication satellites can be placed in various types of orbits. We discuss few common types: -

(a) Geostationary orbits Satellites: A satellite in a geostationary orbit appears to be in a fixed position to an earth-based observer. A geostationary satellite revolves around the earth at a constant speed once per day over the equator. The geostationary orbit is useful for communications applications because ground based antennae, which must be directed toward the satellite, can operate effectively without the need for expensive equipment to track the satellite's motion. Especially for applications that require a large number of ground antennae (such as direct TV distribution), the savings in ground equipment can more than justify the extra cost and onboard complexity of lifting a satellite into the relatively high geostationary orbit.

The concept of the geostationary communications satellite was first proposed by Arthur C. Clarke, building on work by Konstantin Tsiolkovsky and on the 1929 work by Herman Potočnik (writing as Herman Noordung) Das Problem der Befahrung des Weltraums - der Raketen-motor. In October 1945 Clarke published an article titled "Extra-terrestrial Relays" in the British magazine Wireless World. The article described the fundamentals behind the deployment of artificial satellites in geostationary orbits for the purpose of relaying radio signals. Thus Arthur C. Clarke is often quoted as being the inventor of the communications satellite.

The first geostationary communications satellite was Anik 1, a Canadian satellite launched in 1972. The United States launched their own geostationary communication satellites afterward, with Western Union launching their Westar 1 satellite in 1974, and RCA Americom (later GE Americom, now SES Americom) launching Satcom 1 in 1975.
It was Satcom 1 that was instrumental in helping early cable TV channels such as WTBS (now TBS Superstation), HBO, CBN (now ABC Family), and The Weather Channel become successful, because these channels distributed their programming to all of the local cable TV headends using the satellite. Additionally, it was the first satellite used by broadcast TV networks in the United States, like ABC, NBC, and CBS, to distribute their programming to all of their local affiliate stations. The reason that Satcom 1 was so widely used is that it had twice the communications capacity of Westar 1 (24 transponders as opposed to Westar 1's 12), which resulted in lower transponder usage costs.

By 2000 Hughes Space and Communications (now Boeing Satellite Systems) had built nearly 40 percent of the satellites in service worldwide. Other major satellite manufacturers include Space Systems/Loral, Lockheed Martin (owns former RCA Astro Electronics/GE Astro Space business), Northrop Grumman, Alcatel Space and EADS Astrium.

(b) Low-Earth-orbiting satellites: A low Earth orbit typically is a circular orbit about 150 kilometers above the earth's surface and, correspondingly, a period (time to revolve around the earth) of about 90 minutes. Because of their low altitude, these satellites are only visible from within a radius of roughly 1000 kilometers from the sub-satellite point. In addition, satellites in low earth orbit change their position relative to the ground position quickly. So even for local applications, a large number of satellites are needed if the mission requires uninterrupted connectivity.

Low earth orbiting satellites are less expensive to position in space than geostationary satellites and, because of their closer proximity to the ground, require lower signal strength. So there is a trade off between the number of satellites and their cost. In addition, there are important differences in the onboard and ground equipment needed to support the two types of missions.

A group of satellites working in concert thus is known as a satellite constellation. Two such constellations which were intended for provision for hand held telephony, primarily to remote areas, were the Iridium and Globalstar. The Iridium system has 66 satellites. Another LEO satellite constellation, with backing from Microsoft entrepreneur Paul Allen, was to have as many as 720 satellites. It is also possible to offer discontinuous coverage using a low Earth orbit satellite capable of storing data received while passing over one part of Earth and transmitting it later while passing over another part. This will be the case with the CASCADE system of Canada's CASSIOPE communications satellite.

(c) Molniya satellites: As mentioned, geostationary satellites are constrained to operate above the equator. As a consequence, they are not always suitable for providing services at high latitudes: for at high latitudes a geostationary satellite may appear low on (or even below) the horizon, affecting connectivity and causing multipathing (interference caused by signals reflecting off the ground into the ground antenna). The first satellite of Molniya series was launched on April 23, 1965 and was used for experimental transmission of TV signal from Moscow uplink station to downlink stations, located in Russian Far East, in Khabarovsk, Magadan and Vladivostok. In November of 1967 Soviet engineers created a unique system of national TV network of satellite television, called Orbita that was based on Molniya satellites.

Molniya orbits can be an appealing alternative in such cases. The Molniya orbit is highly inclined, guaranteeing good elevation over selected positions during the northern portion of the orbit. (Elevation is the extent of the satellite's position above the horizon. Thus a satellite at the horizon has zero elevation and a satellite directly overhead has elevation of 90 degrees). Furthermore, the Molniya orbit is so designed that the satellite spends the great majority of its time over the far northern latitudes, during which its ground footprint moves only slightly. Its period is one half day, so that the satellite is available for operation over the targeted region for eight hours every second revolution. In this way a constellation of three Molniya satellites (plus in-orbit spares) can provide uninterrupted coverage.

Molniya satellites are typically used for telephony and TV services over Russia. Another application is to use them for mobile radio systems (even at lower latitudes) since cars traveling through urban areas need access to satellites at high elevation in order to secure good connectivity, e.g. in the presence of tall buildings.

Applications of Satellites

(a) Telephony: One of the major applications of a communication satellite is in provision of long distance telephone services. The connectivity is through frequency division multiple access (FDMA) or time division multiple access(TDMA) predominantly. Telephone subscribers can be connected through a network of exchanges which are in turn connected to satellite earth stations which uplink the traffic to satellite for further processing.

(b) Television and Radio: There are two types of satellites used for television and radio:

(i) Direct Broadcast Satellite (DBS): A direct broadcast satellite is a communications satellite that transmits to small DBS satellite dishes (usually 18" to 24" in diameter). Direct broadcast satellites generally operate in the upper portion of the Ku band. DBS technology is used for DTH-oriented (Direct-To-Home) satellite TV services, such as DirecTV and Dish Network in the United States, ExpressVu in Canada, and Sky Digital in the UK.

(ii) Fixed Service Satellite (FSS): Use the C band, and the lower portions of the Ku bands. They are normally used for broadcast feeds to and from television networks and local affiliate stations (such as program feeds for network and syndicated programming, live shots, and backhauls), as well as being used for distance learning by schools & universities, business television (BTV), videoconferencing, and general commercial telecommunications. FSS satellites are also used to distribute national cable channels to cable TV headends. FSS satellites differ from DBS satellites in that they have a lower RF power output than the latter, requiring a much larger dish for reception (3 to 8 feet in diameter for Ku band, and 12 feet on up for C band). FSS satellite technology was also originally used for DTH satellite TV from the late 1970s to the early 1990s in the USA in the form of TVRO (TeleVision Receive Only) receivers and dishes (a.k.a. big-dish, or more pejoratively known as big ugly dish, systems). It was also used in its Ku band form for the now-defunct Primestar satellite TV service.

(c) Mobile satellite technologies: Initially available for broadcast to stationary TV receivers, by 2004 popular mobile direct broadcast applications made their appearance with that arrival of two satellite radio systems in the United States: Sirius and XM Satellite Radio Holdings. Some manufacturers have also introduced special antennas for mobile reception of DBS television. Using GPS technology as a reference, these antennas automatically re-aim to the satellite no matter where or how the vehicle (that the antenna is mounted on) is situated. These mobile satellite antennas are popular with some recreational vehicle owners. Such mobile DBS antennas are also used by JetBlue Airways for DirecTV (supplied by LiveTV, a subsidiary of JetBlue), which passengers can view on-board on LCD screens mounted in the seats.

(d) Amateur radio: Amateur radio operators have access to the OSCAR satellites that have been designed specifically to carry amateur radio traffic. Most such satellites operate as space borne repeaters, and are generally accessed by amateurs equipped with UHF or VHF radio equipment and highly directional antennas such as Yagis or dish antennas. Due to the limitations of ground-based amateur equipment, most amateur satellites are launched into fairly low Earth orbits, and are designed to deal with only a limited number of brief contacts at any given time. Some satellites also provide data-forwarding services using the X.25 or similar protocols.

Satellite Broadband Services: In recent years, satellite communication technology has been used as a means to connect to the Internet via broadband data connections. This is can be very useful for users to test who are located in very remote areas, and can't access a wireline broadband or dialup connection.

Countries with satellite launch capability

This list includes counties with an independent capability to place satellites in orbit, including production of the necessary launch vehicle. Many more countries have built satellites that were launched with the aid of others. The French and British capabilities are now subsumed by the European Union under the European Space Agency.

First launch by country

Country Year of first launch First satellite

Russia 1957 "Sputnik 1"

United States 1958 "Explorer 1"

France 1965 "Asterix"

Japan 1970 "Osumi"

China 1970 "Dong Fang Hong I"

United Kingdom 1971 "Prospero X-3"

European Union 1979 "Ariane 1"

India 1980 "Rohini"

Israel 1988 "Ofea 1"

Iran 2005 "Sina 1"

In 1998, North Korea claimed to have launched a satellite, but this was never confirmed, and widely believed to be a cover for the test launch of the Taepodong-1 missile over Japan (See Kwangmyongsong).

Introduction and Brief History of Satellites and Communication Satellites

Thursday, November 7, 2013

Auto Darkening Welding Helmets Basic Terms and Definitions

Auto Darkening Welding Helmets are the best welding helmets to protect a welder's eye from flash damage in welding applications. Auto Darkening welding helmet filters offer the same level of protection as a standard welding helmet filter. Auto darkening filters detect the flash of the arc and darken so fast the eye cannot detect it. Remember welder's flash is the cause of 6% of construction related injuries and purchasing a good auto darkening welding helmet will go a long way to prevent needless injuries. Remember an auto darkening filter still protects your eyes from UV and IR light even when it is not darkened.

Auto Darkening Welding Helmets Basic Terms and Definitions

Auto Darkening Welding Helmets Basic Terms and Definitions

Auto Darkening Welding Helmets Basic Terms and Definitions

Here are some common terms and definitions to help you decide which features you want in an auto darkening welding helmet:

Delay Adjustment: allows user to adjust the amount of time before the lens transitions back to light state

Sensitivity Adjustment: allows user to fine tune unit depending on ambient light or arc intensity; allows low amp, DC TIG welding other units cannot do

Solar Battery Life Extender: extends welding hours; solar cell increases economical operation-decreases battery replacement cost and downtime

Intellisense: allows unit to detect welds less than 5 amps

3N1: 3 modes of operation grind (clear state), weld (shade 8.5-12.5) and oxyfuel gas cutting (shade 5); one hood for every welding process.

HTLS Lightstate: shade 3.75 clear state, the clearest PI filter available; allows good color and visibility for hood down set up in low ambient light settings

Independent Redundant Sensors: if one sensor is blocked or damaged, the unit's performance will not be damaged; enables welder to work in tight areas.

Auto Off: manually shut down unit when not in use, or automatic shut-off after 20 minutes non-use; maximizes battery life.

ClimaSensor Technology: tests the ambient air temperature three times per minute and automatically adjusts to ensure true shade when welding

EMI Coating: special coating designed to shield and protect electronics against extreme electromagnetic interference.

Auto Darkening Welding Helmets Basic Terms and Definitions

Tuesday, November 5, 2013

IR Transmitter and Receiver

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Saturday, November 2, 2013

Apantac Makes HDMI, IR Signal Extenders, Splitters, and Switchers

Review Apantac Makes HDMI, IR Signal Extenders, Splitters, and Switchers

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Apantec Makes HDMI, IR Signal Extenders, Splitters, and Switchers.

Friday, November 1, 2013

NextGen Remote Control Extender Genius

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How to set up your new Remote Control Genius.

Wednesday, October 30, 2013

Data Repeater

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Sunday, October 27, 2013

FOXTEL MULTIROOM - Official TVC

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A TV campaign designed to raise awareness of Foxtel's new "Multi-Room" application, which enables subscribers to watch different channels simultaneously. Sol...

KFC vs Popeyes Chicken! Who's Chicken is Better?

Sunday, October 6, 2013

Infa 1 Touch Da Sky

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Wednesday, October 2, 2013

Using Quality HDMI To HDMI Cables Will Improve The Quality Of The Output

It is natural for one to blame our service providers when we see grainy picture quality on our television sets. But how many of us are wiling to pay that few dollars more for obtaining the kind of conversion required when we are connecting two devices together? Using Blu-ray devices and Infrared methods for accessing data and controlling our DVD players is only a natural step in the progression of science.

Using Quality HDMI To HDMI Cables Will Improve The Quality Of The Output

Using Quality HDMI To HDMI Cables Will Improve The Quality Of The Output

Using Quality HDMI To HDMI Cables Will Improve The Quality Of The Output

Technology has improved leaps and bounds since the days of the electric lamp. There are some things which have not changed since those times and some of them are still around like the standard letter while their erstwhile city cousins, the e-mail have ascended all the pinnacles of progress. It is the same situation with the use of cables. Most of us are unaware of the need for high quality cables like an HDMI to HDMI cable for use with high end devices like the High Definition Televisions sets. The data which was once only a packet of energy has undergone changes in definition and speed with the advancement of technology. It is not surprising. If you are preparing a five star chicken dish, you would like to obtain a good fat and chicken from a reputed dealer rather that use a diseased hen which is lying in your back yard. It is reminiscent of the days when we said goodbye to the bullock cart and stepped into our cars and thus started setting new speeds limits for travel on the roads.

One of the most effective means of transmitting uncompressed data which may be audio or video is done using the HDMI to HDMI cable. Transferring data from one digital device such as a DVD player or a Television set to the amplifiers or modulators needs some kind of interface, like a wire. It is very obvious that if the quality of the device which you are using to make the data transfer is poor you would not get a high quality output.

Use of advanced cables for effective data transfers would allow us to make sure that the quality of the data which is being transferred is having the quality required to preserve all the data. Buying cheap HDMI cables is not recommended for two reasons. One of the obvious reasons is that the cheap HDMI cables will not have lifetime guarantee. Secondly, you may not be able to get the same quality in the output. When you are using these cheap versions, you will no doubt get the image, but the image will be grainy and some of the colors will be lost during the transfer of the data.

Using Quality HDMI To HDMI Cables Will Improve The Quality Of The Output

Friday, September 27, 2013

Advantages Of Twisted Pair Cat6 Cables

Cat6 cables are a standard for cables used for Ethernet connections. As compared to the previous standards of cables used for the purpose, this standard has better features relating to cross talk and even system noise. The speed is fast and this is why it is very commonly used. Twisted pairs of wires are a regular feature of such cables. Better insulation leads to higher performance by the system. But sometimes when the insulation becomes too thick the assembly becomes non compliant. These cables are highly efficient because they need not be tested after installation.

Advantages Of Twisted Pair Cat6 Cables

Advantages Of Twisted Pair Cat6 Cables

Advantages Of Twisted Pair Cat6 Cables

It is very necessary to ensure proper installation and termination of the cables so as to yield optimum results. Cables should not be kinked or bent very tightly because the functioning will be disrupted. It is important to ground all the cables to ensure complete safety. The shield must be continuously maintained between both the ends. Ground loops must be avoided because they introduce noise into the channels. This standard belongs to the sixth generation of cabling procedures. This cable is a higher version of all the previous cables and provides faster speed. These cables offer very high performance levels relating to effective transmission of data.

In order to yield the best possible transmission from these cables, the installation procedure must be advanced and service skills need to be very strong. Since this cable requires stringent handling conditions and the installation requires additional training for installers. The process of installation requires a great deal of time, expertise and specific care. Any problem caused due to wrong installation can have massive effects on the entire cabling network. Hence, it is necessary to hand over this responsibility to highly experienced professionals who hold enough experience to properly install this wiring system.

The advantages offered by this wiring system have lead to an increase in the demand for it. Cat6 cables offer very high flexibility. There are various high end brands in the field that make use of this technology. It is very trustworthy and speedy. Compared to the other most commonly used category 5 of cables, it has higher speed of transmission and an extended bandwidth.

Another important factor that increases the demand of these cables is that this category is designed in a way that it is compatible to even lower categories of wiring. This implies that the working of the lower categories is completely supported by this cabling network.

Advantages Of Twisted Pair Cat6 Cables

Saturday, September 21, 2013

Forskie - Be your own dream

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Apresentação da Banda FORSKIE (Heavy/Power) da cidade de Lages-SC na 19ª Festa do Pinhão (2007). Música própria da banda.

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Tuesday, September 17, 2013

How to Select and Install a Home Theater

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Thursday, September 12, 2013

Home Theater application LM Remote Keymap

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This is a demo of the functionality of my DIY media room / theater. There were many pieces to make this come together, but most of the brains are run from a ...

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Saturday, September 7, 2013

WiiMote IR music controllers

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Monday, September 2, 2013

XBox360 with External IR Receiver and Power LED

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External IR on XBox360.

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Wednesday, August 28, 2013

Universal Air Filter Sales & Product Configurator

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Universal Air Filter Sales & Product Configurator with 3D Preview and Native CAD Downloads. Powered by PARTsolutions - www.partsolutions.com.

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Thursday, August 22, 2013

Wireless HDMI Extender - Conversions Technology

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Website: http://www.conversionstechnology.com Facebook: http://www.facebook.com/ConversionsTech.

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Sunday, August 18, 2013

Wired Up Installation

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Smart home and electronics installation specialists.

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Tuesday, August 13, 2013

REPEATER installation

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Friday, August 9, 2013

Leap frog to pre-extentoin

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Friday, August 2, 2013

OmniMount's PLAY articles are called as Best Tech of 2012

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Gadget expert Scott Steinberg highlights OmniMount's fully interactive wall mount as a Best Tech Product of 2012. Move your TV every which way for any activity!

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Sunday, July 14, 2013

SDP Telecom

SDP Telecom Tube. Duration : 5.07 Mins.

Telecommunication Products , Base Station BTS components, modules and subsystems, Ferrite devices, Filter, Diplexer, Tower Mount Amplifier TMA, Remote Radio ...

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Tuesday, July 9, 2013

green-i instruktion 5 - INSTALLATION 2

green-i instruktion 5 - INSTALLATION 2 Tube. Duration : 1.78 Mins.

Hur du enkelt byter ut din gamla strömbrytare mot en green-i.

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Thursday, July 4, 2013

Russound Volume Controls 101

Russound Volume Controls 101 Video Clips. Duration : 5.73 Mins.

A primer on Russound Volume Controls, jumpers and all.

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Saturday, June 29, 2013

Tv Mount + ball closet

Tv Mount + ball closet Video Clips. Duration : 1.13 Mins.

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Tuesday, June 25, 2013

How To Install an Infrared Repeater IR Repeater - iAutomate.com

How To Install an Infrared Repeater IR Repeater - iAutomate.com Video Clips. Duration : 7.55 Mins.

This Infrared Repeater Kit just Works and that is why so many have tried to copy it. This video demonstrates how to test and install an infrared repeater kit...

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Sunday, April 28, 2013

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

If you're getting set to start your basement finishing project, and are considering including a theater room or at least a family room with some high-powered home theater equipment, then you might also be wondering how to camoflauge all of that fancy equipment!

Nothing kills "new home theater euphoria" quite like an ugly stack of equipment in the corner or (even worse!) equipment littering the base of your t.v. or projection screen. But what should you do about all that stuff? How can you conceal the equipment needed to create a high-octane theater room? Should you even be worrying about this with all the other things you need to do to prepare for the start of your basement finishing project?

Don't despair! Yes, this is the right time to think about this. What's more, we've come up with the top 10 ideas to help you effectively conceal your home theater equipment, without sacrificing the functionality of your equipment, or your basement.

Drum roll please...

10. Do Nothing. O.k. this doesn't actually conceal anything, but if you are of a minimalist persuasion and don't break into a cold sweat thinking about looking at all your equipment, then just put the equipment on a shelf near your t.v./screen. Your basement finishing project won't be the first on the block to go with this set-up.

9. Buy a large plant. Again, for the minimalist this is probably an acceptable solution. Disguise the equipment with a large plant that will still allow the infrared signal from your remote(s).

8. Create shelving in a wall and cover the opening with a painting. While this requires a little more effort to change out DVDs and Blu-Rays, it is an effective way to conceal your equipment. Overheating could be a potential hazard with this option though.

7. Wire your basement components so they'll work off the components from your t.v. area upstairs. Absolutely, positively, WILL NOT be seen from the basement. The big downside is running up and down the stairs constantly!

6. Cover your wall shelving with cabinet doors. If done properly, you can create stunning built-ins that will wow! your neighbors when they are over. May need to leave doors open to allow for ventilation so equipment doesn't overheat.

5. If you plan to have a wet bar nearby in your basement finishing project, plan for one cabinet to have glass doors and shelves for your equipment.

4. Recess your t.v. or screen and your shelves on either side. Then, install curtains (very theater-esque) that will hide the equipment. If you really want to create the maximum effect with this option, put the curtain on a track with a motor that can open and close it as much or as little as you want. Who knows, maybe you can even start charging admission?!

3. Install an infrared eye and repeater. Infrared eye (about the size of a dime) goes anywhere near the t.v./screen. Wire from the eye to the repeater is hidden behind the drywall. Repeater is installed in a closet/storage space/mechanical room or anywhere else your equipment will be hidden. When you use your standard infrared remote, the eye tells the repeater to talk to the equipment and do your bidding.

2. Wire your home theater system into your existing home automation center and control the basement with an additional home center remote. While this is an awesome option, it only works if you already have a home automation program installed in the rest of the house, or are willing to spend the money now to remodel it into your existing home.

And the #1 way to hide your audio/visual equipment for your basement home theater system is... Stick your equipment in any old room in the house, and buy yourself an RF Remote System. While this will still require speakers and video wiring to be run inside the walls, you don't need any special wiring for eyes to repeat the infrared signal from your remote. The RF remote signal will go through walls and can talk to the signal receiver as far as 100 ft. away.

Don't stress out about the home theater in your basement finishing project! There's a solution for every budget out there. With a little help from a qualified pro, and some careful planning, you'll soon be the talk of the neighborhood!

Building more...

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

Ir Repeater

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment
Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

Ir Repeater

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

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Arduino RF to IR activity Phase 1

Arduino RF to IR activity Phase 1

Video Clips. Duration : 3.55 Mins.

Arduino RF to IR activity Phase 1
Phase 1 of my first, no instructions, practical Arduino project. I am taking a power outlet remote control (like this: http://www.amazon.com/Stanley-31164-Wi...
Arduino RF to IR activity Phase 1

Arduino RF to IR activity Phase 1

Arduino RF to IR activity Phase 1

Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

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Basement Finishing & Theater Rooms - The Top 10 Ways to Hide Your Audio Visual Equipment

Monday, April 1, 2013

HDX-100 - HDMI Extender over a CAT6 STP Cable

Video Clips. Duration : 1.02 Mins.

HDX-100 - HDMI Extender over a CAT6 STP Cable
Extend an HDMI signal to one remote display plus one local monitor up to 150 feet away. The HDX-100 Extends any HDMI Signal up to 150 Feet to Display Monitor...
HDX-100 - HDMI Extender over a CAT6 STP Cable

HDX-100 - HDMI Extender over a CAT6 STP Cable

HDX-100 - HDMI Extender over a CAT6 STP Cable

Wednesday, March 13, 2013

Introduction and Brief History of Satellites and Communication Satellites