Bluetooth is a high speed, low powered wireless link technology that’s designed to connect phones or other portable equipment together with little to no work required by the user. Unlike infrared, Bluetooth doesn’t require line of site positioning to work.

Current prototype circuits are contained on a board that is 0.9 cm square, with a much smaller circuit board being developed.  

When one Bluetooth device comes in contact with another, they will automatically exchange addresses and details of capability. Then, they can establish a 1 MB link with security that they will use as required. The protocols involved with handle both data and voice, with a very flexible topography.

The technology achieves its goal by embedding tiny, non expensive short range tranceivers into the devices available today. The radio operates on the 2.45 GHz frequency band, and supports up to 721 KBps, along with three voice channels.  

Each devices offers a unique 48 bit address from the IEEE 802 standard, with the connections being point to point or multipoint. The max range is 10 meters, although it can be extended to 100 meters by increasing the power. The devices are also protected from radio interference by changing their frequencies, also known as frequency hopping.

What’s important, is the fact that Bluetooth devices won’t drain battery life. The specification targets power consumption of the device, limiting the drain on the battery. The radio chip will consume only 0.3mA in stand by mode, which is less than 5% of the power that standard phones use.

Bluetooth will also guarantee security at the bit level. The authentification is controlled by the user via a 128 bit key. The radio signals can be coded with anything up to 128 bit. With the frequency hopping, Bluetooth is already very hard to listen into.

The baseband protocol is a combination of both circuit and packet switches. Slots can be reserved for synchronous packets as well. Each packet will be transmitted in a different hop frequency. Normally, a packet covers a single slot although it can be extended to cover up to five slots.

Bluetooth can also support data channels of up to three simultaneous voice channels. Therefore, it’s possible to transfer the data while you talk at the same time. Each individual voice channel will support 64 KB.

From a technical standpoint, Bluetooth is very different indeed. It’s the best wireless method in the world, surpassing even infrared. For communication on the go, Bluetooth is indeed very hard to compete with.

Did you come across the word Free to Air satellite TV before? Even though you might have never heard of it, you might have seen it. People who adopted FTA satellite TV earlier on, used satellite dishes that spanned several feet in diameter and with the coming of digital video, consumers no longer are restricted to these large dishes.

You can receive Free to Air channels for free and there are hundreds of channels to choose from, it is great for international programming, FTA technology can be used as an educational tool to remote and distant villages where basic educational facilities are lacking with a receiver that can process the information from the satellite.

Free-to-air satellite technology is the most modern way of viewing television for free. One can watch the channels without any subscription fee whatsoever it is. Free-to-air programs are transmitted to satellite dishes, however, the receivers and file supports are necessary.

To be able to enjoy the FTA programs, there are various things you need to know, such as how satellite supports the channel you wish to view, the frequency of that FTA channel etc.

You do not need a huge plate at top of your roof that is bigger than your house; C Band or 6-foot satellite dish would suffice. However the new FTA programs now moved to the Ku Band system which is an FTA receiver with a remote control and a small dish will do.

Depending on the source of the FTA receiver, your file support may become necessary. You will need to ensure that your FTA receiver will provide for file support system that is available on a 24/7 basis. This is only to ensure that should any problem surface, you will be ready and able to control the problem

With the FTA satellite technology, you do not have to pay any monthly fees and your only are required to pay for the equipment, unless you would like to pay for installation as well. It is almost like receiving free local channels from an antenna, except that FTA uses a satellite to receive the digital programming.

Free to Air satellite technology can help you learn more about the other cultures and languages and with the diverse selection of channels you have at your fingertips, there are a variety of things to learn from. There are many channels in English too and many popular home schooling systems use Free to Air satellite technology for consumers to receive the educational channels.

All the programs received via free-to-air channels are unencrypted and it is broadcasted as it is and thus, the language will be the same at it is.

There are some disadvantages of Free to Air Satellite technology, now all of this might seem too good to be true, but free to Air satellite technology does have some issues. Since FTA satellites have been used as a testing ground, some channels are shown only for a limited period of time, typically the test channels are shown for several months.

Technology has brought many wonders in our lives. Undoubtedly, Bluetooth is one of those simple yet highly effective technical achievements, which has made our lives more easier than ever. Actually, Bluetooth is a short-range wireless technology, which is used to create personal area networks among compatible devices. Well, it allows you to leave your phone right there in your pocket and you can easily talk with Bluetooth headset – without any wires. On the other hand, you can also exchange data or information with any other Bluetooth-supporting phones near to you. Moreover, you can also send information to any the nearest Bluetooth-enabled printer to get the printouts of anything you want.

The coveted term Bluetooth is taken from the name of the Danish King “Harold Bluetooth.” Actually, this king was known for his unifying prevalence and in the very same way Bluetooth technology performs. Apparently, it allows various Bluetooth compatible devices to talk or share things with each other on a compatible platform. Evolving with time, Bluetooth wireless technology allows to share data between devices with in 30 feet of distance. Hence, it makes our lives more convenient, as it gives us flexibility to share important data between phones, cameras and PDAs. Various things are done in such an easier way that it simply leaves you awestruck. You can transfer all your photos from your Bluetooth enabled camera to any Bluetooth printer to get Instant printouts.

All the right elements are very well blended together to achieve something special. Well, Bluetooth also offers much needed security and convenience in a mobile phone. This technology has been duly accepted by the people across the globe and this is the reason why that all the leading handset manufacturers are introducing Bluetooth enabled handsets. As far as preferences are concerned, a common mobile phone user have enough options to choose the right sort of Bluetooth phones from the well known makers like Nokia, Motorola, Sony Ericsson, LG, Samsung etc.

These days car mobile phones with Bluetooth technology have been becoming quite popular among users. These car mobile phones allow the user to make and receive calls by using their existing mobile number directly from their cars. The most illustrating feature of such phones is that they do not require any sort of hard-wired connection to perform like the way you want. With such an enormous growth in short span of time, Bluetooth technology has really come a long way and we would witness many more wonders in the near future.