Extend your network infrastructure with long range
outdoor wireless Ethernet connections
Trango's long range fixed wireless broadband Ethernet equipment is ideal for all types of wireless wide area network (WWAN) and wireless local area network (WLAN) applications. Trango outdoor wireless networking solutions allow you to quickly, easily, and cost effectively deploy reliable, high-speed, secure wireless IP connections between multiple remote locations at distances up to 45+ miles, and enable you to eliminate your costly leased lines and avoid expensive time consuming fiber trenching.
Wireless WAN Applications
Wireless WAN applications are endless for Trango long-range wireless Ethernet bridges. For example, a business may need to link its IT infrastructure to a few outlying buildings; a university or any school may need to provide internet access to dormitories or other buildings across campus; or a hospital may need to establish a secure link to a clinic across town so that doctors may securely exchange patient information over a high-speed connection.
Whether you need to a network connection across the street, across town, or from urban to rural areas, Trango wireless WAN/LAN building-to-building outdoor networks are ideal for any private enterprise or network operator that requires high-speed connectivity between two or more remote locations. Trango long range wireless wide area network (WWAN) solutions are well suited for a wide variety of industries and applications because they deliver high-capacity bandwidth, are extremely reliable, highly secure, and can be established with minimal effort and cost.
Licensed Point-to-Point Wireless WAN Radios
* TrangoLINK Giga® is a split-architecture (ODU/IDU) full duplex RF microwave system link that is both native Ethernet and native-TDM.
* TrangoLINK® Apex is an all-outdoor full duplex RF microwave radio that is native-Ethernet for 100% IP traffic.
* ATLAS 4900™ is an all-outdoor native Ethernet OFDM 4.9 GHz wireless bridge that operates in the licensed Public Safety band.
Unlicensed Point-to-Point Wireless WAN Radios
* TrangoLINK-45™ is an all-outdoor, native Ethernet, multi-band OFDM wireless Ethernet bridge that is capable of operation in 4 different 5 GHz bands (5.2, 5.3, 5.4, 5.8 GHz).
* TrangoLINK-10™ is an all-outdoor, native Ethernet 5.8 GHz wireless bridge.
Unlicensed Point-to-MultiPoint Wireless WAN Radios
For delivering point-to-multipoint (PtMP) broadband access wireless WAN connectivity from a central office to many remote offices, Trango offers these robust solutions.
* Access5830™ System 5.8 GHz broadband wireless access system delivers up to 10 Mbps up to 18 miles.
* Trango M2400S™ 2.4 GHz broadband wireless access system delivers up to 5 Mbps up to 25 miles.
* Trango M900S™ 900 MHz broadband wireless access system delivers up to 3 Mbps up to 20 miles.
Sunday, November 30, 2008
Wireless Amplifier
In November 2006, Marin Soljačić and other researchers at the Massachusetts Institute of Technology applied the near field behaviour well known in electromagnetic theory to a wireless power transmission concept based on strongly-coupled resonators.[12][13][14] In a theoretical analysis (see Ref: Annals of Physics), they demonstrate that, by designing electromagnetic resonators that suffer minimal loss due to radiation and absorption and have a near field with mid-range extent (namely a few times the resonator size), mid-range efficient wireless energy-transfer is possible. The reasonment is that, if two such resonant objects are brought in mid-range proximity, their near fields (consisting of so-called 'evanescent waves') couple (evanescent wave coupling) and can allow the energy to tunnel/transfer from one object to the other within times much shorter than all loss times, which were designed to be long, and thus with the maximum possible energy-transfer efficiency. Since the resonant wavelength is much larger than the resonators, the field can circumvent extraneous objects in the vicinity and thus this mid-range energy-transfer scheme does not require line-of-sight. By utilizing in particular the magnetic field to achieve the coupling, this method can be safe, since magnetic fields interact weakly with living organisms.
On June 7, 2007, it was reported that a prototype system had been implemented.[10][11] In an experimental demonstration (see Ref: Science), the MIT researchers successfully demonstrated the ability to power a 60-watt light bulb wirelessly using two copper coils of 60cm diameter that were 2m (7ft) away at roughly 45% efficiency. The coils were designed to resonate together at 10MHz and were oriented along the same axis. One was connected inductively to a power source, and the other one to a bulb. The setup powered the bulb on, even when the direct line of sight was blocked using a wooden panel.
"Resonant inductive coupling" has key implications in solving the two main problems associated with non-resonant inductive coupling and electromagnetic radiation, one of which is caused by the other; distance and efficiency. Electromagnetic induction works on the principle of a primary coil generating a predominantly magnetic field and a secondary coil being within that field so a current is induced within its coils. This causes the relatively short range due to the amount of power required to produce an electromagnetic field. Over greater distances the non-resonant induction method is inefficient and wastes much of the transmitted energy just to increase range. This is where the resonance comes in and helps efficiency dramatically by "tunneling" the magnetic field to a receiver coil that resonates at the same frequency. Unlike the multiple-layer secondary of a non-resonant transformer, such receiving coils are single layer solenoids with closely spaced capacitor plates on each end, which in combination allow the coil to be tuned to the transmitter frequency thereby eliminating the wide energy wasting "wave problem" and allowing the energy used to focus in on a specific frequency increasing the range.
Beginning in the early 1960s resonant inductive wireless energy transfer was used successfully in implantable medical devices [15] including such devices as pacemakers and artificial hearts. While the early systems used a resonant receiver coil later systems [16] implemented resonant transmitter coils as well. These medical devices are designed for high efficiency using low power electronics while efficiently accommodating some misalignment and dynamic twisting of the coils. The separation between the coils in implantable applications is commonly less than 20 cm. Today resonant inductive energy transfer is regularly used for providing electric power in many commercially available medical implantable devices.[17]
Wireless electric energy transfer for experimentally powering electric automobiles and buses is a higher power application (>10kW) of resonant inductive energy transfer. High power levels are required for rapid recharging and high energy transfer efficiency is required both for operational economy and to avoid negative environmental impact of the system. An experimental electrified roadway test track built circa 1990 achieved 80% energy efficiency while recharging the battery of a prototype bus at a specially equipped bus stop [18] [19]. The bus could be outfitted with a retractable receiving coil for greater coil clearance when moving. The gap between the transmit and receive coils was designed to be less than 10 cm when powered. In addition to buses the use of wireless transfer has been investigated for recharging electric automobiles in parking spots and garages as well.
Some of these wireless resonant inductive devices operate at low milliwatt power levels and are battery powered. Others operate at higher kilowatt power levels. Current implantable medical and road electrification device designs achieve more than 75% transfer efficiency at an operating distance between the transmit and receive coils of less than 10 cm.
On June 7, 2007, it was reported that a prototype system had been implemented.[10][11] In an experimental demonstration (see Ref: Science), the MIT researchers successfully demonstrated the ability to power a 60-watt light bulb wirelessly using two copper coils of 60cm diameter that were 2m (7ft) away at roughly 45% efficiency. The coils were designed to resonate together at 10MHz and were oriented along the same axis. One was connected inductively to a power source, and the other one to a bulb. The setup powered the bulb on, even when the direct line of sight was blocked using a wooden panel.
"Resonant inductive coupling" has key implications in solving the two main problems associated with non-resonant inductive coupling and electromagnetic radiation, one of which is caused by the other; distance and efficiency. Electromagnetic induction works on the principle of a primary coil generating a predominantly magnetic field and a secondary coil being within that field so a current is induced within its coils. This causes the relatively short range due to the amount of power required to produce an electromagnetic field. Over greater distances the non-resonant induction method is inefficient and wastes much of the transmitted energy just to increase range. This is where the resonance comes in and helps efficiency dramatically by "tunneling" the magnetic field to a receiver coil that resonates at the same frequency. Unlike the multiple-layer secondary of a non-resonant transformer, such receiving coils are single layer solenoids with closely spaced capacitor plates on each end, which in combination allow the coil to be tuned to the transmitter frequency thereby eliminating the wide energy wasting "wave problem" and allowing the energy used to focus in on a specific frequency increasing the range.
Beginning in the early 1960s resonant inductive wireless energy transfer was used successfully in implantable medical devices [15] including such devices as pacemakers and artificial hearts. While the early systems used a resonant receiver coil later systems [16] implemented resonant transmitter coils as well. These medical devices are designed for high efficiency using low power electronics while efficiently accommodating some misalignment and dynamic twisting of the coils. The separation between the coils in implantable applications is commonly less than 20 cm. Today resonant inductive energy transfer is regularly used for providing electric power in many commercially available medical implantable devices.[17]
Wireless electric energy transfer for experimentally powering electric automobiles and buses is a higher power application (>10kW) of resonant inductive energy transfer. High power levels are required for rapid recharging and high energy transfer efficiency is required both for operational economy and to avoid negative environmental impact of the system. An experimental electrified roadway test track built circa 1990 achieved 80% energy efficiency while recharging the battery of a prototype bus at a specially equipped bus stop [18] [19]. The bus could be outfitted with a retractable receiving coil for greater coil clearance when moving. The gap between the transmit and receive coils was designed to be less than 10 cm when powered. In addition to buses the use of wireless transfer has been investigated for recharging electric automobiles in parking spots and garages as well.
Some of these wireless resonant inductive devices operate at low milliwatt power levels and are battery powered. Others operate at higher kilowatt power levels. Current implantable medical and road electrification device designs achieve more than 75% transfer efficiency at an operating distance between the transmit and receive coils of less than 10 cm.
Sunday, November 16, 2008
TV streams with Fewer and interactive Ads equals more viewers
We all hate the ad breaks and with gadgets like Tivo we can just fast forward but what about online tv streams? Theres no way around the ad breaks and thats not making viewers happy.
However Hulu the online tv website has been experimenting during the last year with single ads and interactive ads allowing viewer participation and its working.
Instead of the long drawn out ad breaks plagueing TV viewers, only one advertisment is broadcast during each break on Hulu. And less ads make them more memorable to the viewer which allows them to charge a higher premium.
Hulu chief executive Jason Kilar said:- ‘The notion that less is more is absolutely playing out on Hulu. This is benefiting advertisers as much as it is benefiting users.”
Whilst the Hulu site was’nt the first to deliver full length TV episodes, it is now the dominant force for ad driven TV and movie streaming media. Started barely a year back with a mear 10 advertisers on board, it now has over 100 sponsors, including major companies on its books.
Hulu has seen steady growth, supplying 142 million streams to 6.3 million unique viewers during the month of September and is now the sixth most popular online website in the USA. Even overtaking major players such as ESPN, CNN, MTV and Disney websites. It does however still trail behind the mighty YouTube, which shows 20 times more videos than any other website. Hulu is also still behind sites Yahoo, Fox, MSN amongst others.
Because of its massive library of over 1,000 tv shows and 400 movies, Hulu’s audience is growing faster than the networks Websites and video sites such as Veoh, Joost and Metacafe.
The website which is jointly owned by NBC Universal and News Corporation isnt yet profitable, it has gained praise from many advertising executives.
A big factor on its popularity comes when looking at the quantity of ads. Comedies like Family Guy and The Office average eight minutes of ads when aired on TV. Hulu shows only 2 minutes of ads during the same shows.
“We think that a modest amount of advertising is the right thing because that’s going to drive atypical results for marketers,” Mr. Kilar said. He said the site had no plans to increase the advertising load.
Interestingly one in four viewers participate if the ads are interactive. Companies such as Nissan show multiple versions of commercials for viewers to choose from. Users also are able to vote on whether they like or dislike ads that are shown.
However Hulu the online tv website has been experimenting during the last year with single ads and interactive ads allowing viewer participation and its working.
Instead of the long drawn out ad breaks plagueing TV viewers, only one advertisment is broadcast during each break on Hulu. And less ads make them more memorable to the viewer which allows them to charge a higher premium.
Hulu chief executive Jason Kilar said:- ‘The notion that less is more is absolutely playing out on Hulu. This is benefiting advertisers as much as it is benefiting users.”
Whilst the Hulu site was’nt the first to deliver full length TV episodes, it is now the dominant force for ad driven TV and movie streaming media. Started barely a year back with a mear 10 advertisers on board, it now has over 100 sponsors, including major companies on its books.
Hulu has seen steady growth, supplying 142 million streams to 6.3 million unique viewers during the month of September and is now the sixth most popular online website in the USA. Even overtaking major players such as ESPN, CNN, MTV and Disney websites. It does however still trail behind the mighty YouTube, which shows 20 times more videos than any other website. Hulu is also still behind sites Yahoo, Fox, MSN amongst others.
Because of its massive library of over 1,000 tv shows and 400 movies, Hulu’s audience is growing faster than the networks Websites and video sites such as Veoh, Joost and Metacafe.
The website which is jointly owned by NBC Universal and News Corporation isnt yet profitable, it has gained praise from many advertising executives.
A big factor on its popularity comes when looking at the quantity of ads. Comedies like Family Guy and The Office average eight minutes of ads when aired on TV. Hulu shows only 2 minutes of ads during the same shows.
“We think that a modest amount of advertising is the right thing because that’s going to drive atypical results for marketers,” Mr. Kilar said. He said the site had no plans to increase the advertising load.
Interestingly one in four viewers participate if the ads are interactive. Companies such as Nissan show multiple versions of commercials for viewers to choose from. Users also are able to vote on whether they like or dislike ads that are shown.
Your High Definition Television and HDTV service providers
The new HDTV LCD and HDTV plasma TVs are making many of us review our TV viewing options or perhaps our HDTV viewing options. With the non tube based television set becoming much more affordable over the last couple of years the demand has increased and then so has the size of these flat LCD or plasma screens. The most popular sizes are now almost certainly in the 40 to 50 inch bracket. Now that the screens are so much larger we need the high definition to provide a suitable picture quality. High Definition TV provides in the order of 5 times more information on a screen than the conventional picture prior to HDTV. If however you consider that, for example, a 48 inch screen is approximately 2 and half times the area of a 32 inch set you soon see where the pixels went. That’s a little background about the hardware or the HDTV set but more than anything we now have an increasing number of alternative methods of receiving the HD programs. Some alternatives and considerations. 1.** End Summary**
About the Author:
Satellite TV has always been digital and it is no surprise that we are now able to get HDTV distributed via satellite . We are now able to get satellite TV to PC in HDTV mode providing even wider choice. Take a look at our website for more information, reviews, videos and help with choice of your HDTV.
About the Author:
Satellite TV has always been digital and it is no surprise that we are now able to get HDTV distributed via satellite . We are now able to get satellite TV to PC in HDTV mode providing even wider choice. Take a look at our website for more information, reviews, videos and help with choice of your HDTV.
Satellite TV
Satellite television is the fastest growing programming provider in the country. While it's becoming quite popular many people don't have a clear understanding of how it works or why they need it. Satellite television uses satellites that orbit the earth to send programming signals to customers. The satellite providers use their own satellites that are capable of providing multiple channels at a time. The signals are sent from the satellite provider station to the satellite in space. The satellite then can redirect the signals to earth. The satellites must be set up to allow for consistent signals to earth.
Satellite signals are scrambled signals that require special decoding in order to be viewed. The signals go through the air and are captured by a customer's satellite dish. Today's satellite dishes are small and compact compared to those of even several years ago. Contrary to popular belief the satellite dish doesn't need to be turned or adjusted once it is in place. This is due to more sophisticated signaling. It's best to have your satellite installed professionally. The satellite company often provides expert installation at a reduced rate and sometimes even for free.
Satellite requires a receiver unit. The satellite dish is hooked up to the receiver via a cable that is run into the home. The receiver is placed next to the television set. The installer will hook up the television as well as any other devices you may have such as a DVD or VCR player. More than one television can be hooked up to the satellite dish allowing different programs to be watched at the same time.
The receiver unit may also be a DVR, digital recording device. The DVR allows you to rewind and pause live television, view more than one program at once and most importantly lets you quickly and easily record programs. The DVR records programs with a simple touch of the remote. The programs are recorded on the hard drive of the unit, which can store many hours of shows. Simple commands let you record all episodes of your favorite shows for later viewing.
The receiver provides updated programming so that you can see what is scheduled on the stations that you receive. You can choose the program package that suits you the best. There are typically several options to pick from. Basic satellite programming gives you the least amount of channels. Family programming usually gives the best selections. Deluxe programming gives you access to almost all the stations available. You can also add on to the programming. For example local channels aren't usually included in standard packages. You can add local channels for a small monthly fee.
You can also add other specialized programming to your Direct TV packages. Premium movie channels are some of the most common types of additional programming that you can add. Sports enthusiasts will enjoy special sports channel programming that gives access to many more sports at all times of the day and night. You can also access pay-per-view programming and the costs will be conveniently added to your monthly bill. Get the best options and deals for Satellite TV with Direct TV, the leader in the industry.
Satellite signals are scrambled signals that require special decoding in order to be viewed. The signals go through the air and are captured by a customer's satellite dish. Today's satellite dishes are small and compact compared to those of even several years ago. Contrary to popular belief the satellite dish doesn't need to be turned or adjusted once it is in place. This is due to more sophisticated signaling. It's best to have your satellite installed professionally. The satellite company often provides expert installation at a reduced rate and sometimes even for free.
Satellite requires a receiver unit. The satellite dish is hooked up to the receiver via a cable that is run into the home. The receiver is placed next to the television set. The installer will hook up the television as well as any other devices you may have such as a DVD or VCR player. More than one television can be hooked up to the satellite dish allowing different programs to be watched at the same time.
The receiver unit may also be a DVR, digital recording device. The DVR allows you to rewind and pause live television, view more than one program at once and most importantly lets you quickly and easily record programs. The DVR records programs with a simple touch of the remote. The programs are recorded on the hard drive of the unit, which can store many hours of shows. Simple commands let you record all episodes of your favorite shows for later viewing.
The receiver provides updated programming so that you can see what is scheduled on the stations that you receive. You can choose the program package that suits you the best. There are typically several options to pick from. Basic satellite programming gives you the least amount of channels. Family programming usually gives the best selections. Deluxe programming gives you access to almost all the stations available. You can also add on to the programming. For example local channels aren't usually included in standard packages. You can add local channels for a small monthly fee.
You can also add other specialized programming to your Direct TV packages. Premium movie channels are some of the most common types of additional programming that you can add. Sports enthusiasts will enjoy special sports channel programming that gives access to many more sports at all times of the day and night. You can also access pay-per-view programming and the costs will be conveniently added to your monthly bill. Get the best options and deals for Satellite TV with Direct TV, the leader in the industry.
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