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Bluetooth Definition

Published at 7:20 PM in

Bluetooth Definition

Bluetooth is a specification for the use of low power radio communications to wireless phones, computers, and other network wireless devices over short distances. The name Bluetooth is actually borrowed from Harald Bluetooth, a Denmark king more than 1,000 years ago.

The technology of Bluetooth was primarily designed to support simple wireless networking of devices and peripherals, which includes cell phones, PDAs, and wireless headsets. The wireless signals that are transmitted by Bluetooth cover short distances of up to 30 feet, generally communicating less than 1 MPps (Mega Byte per second).

The networks of Bluetooth feature dynamic topology called PAN or a piconet. The piconets contain a minumum of two and a maximum of eight peer devices. The devices will communicate using protocols that are part of the specification.

Even though the Bluetooth standard will utilize the same 2.4 GHz range as 802.11b and 802.11g,
the technology isn't suitable for a Wi-Fi replacement. When compared to Wi-Fi, Bluetooth is much slower, limited in range, and actually supports less devices.

For short range devices, Bluetooth is rapidly becoming the best. The technology is more popular
with cell phones, as Bluetooth headsets are the way to go these days. To use Bluetooth, your
cell phone will need to have it enabled, or an infared device somewhere on the phone.

Upcoming devices are utilizing Bluetooth as well, such as PS3 and the Nintendo Revolution. The
wireless controllers will be Bluetooth enabled, which will give players the cutting edge.

If you own a cell phone or other wireless device, you should look into Bluetooth. The technology is nothing short of spectacular, making it something that will be around for years and years to come. As technology gets bigger and bigger, you can expect Bluetooth to advance
as well.



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Bluetooth Basics

Published at 7:16 PM in

Bluetooth Basics

The technology of Bluetooth wireless is a short range communications method intended to replace the cables that connect portable or fixed devices while maintaining the highest levels of security.

The key features offered by Bluetooth include low power and low cost. The specification in Bluetooth defines a uniform structure for a wide range of devices to communicate and connect with one another.

The technology behind Bluetooth has achieved global satisfaction such as enabled devices, almost
everywhere in the world. Bluetooth devices will connect and communicate without wires through short range and networks known as piconets.

Each device will simultaneously communicate with up to seven other devices within a single piconet, meaning that each device can also belong to several piconets simultaneously. The piconets are dynamically established as Bluetooth enabled devices enter and leave the proximity of radio.

A fundamental to Bluetooth strength is the ability to handle both data and voice transmissionssimultaneously. This will enable users to enjoy varieties of innovative solutions such as hands free talking, printing and fax capabilities, and other applications.

Specifications
Unlike other standards of wireless, the Bluetooth specification gives product developers both a link layer and application layer definitions, which will help support data and voice applications.

Spectrum
The Bluetooth technology operates in the industrial and scientific band at 2.4 to 2.485 GHz, using a spread spectrum, frequency hopping signal.

Interference
The adaptive frequency hopping of Bluetooth technology was designed to reduce interference between wireless technologies that share the 2.4 GHz spectrum. Adaptive frequency hopping (AFH)
works well within the spectrum to take full advantage of the frequency available.

AFH hopping allows for more efficient transmission within the spectrum, which provides users with greater performance even if they are using other technologies along with Bluetooth.


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Bluetooth Applications

Published at 7:13 PM in

Bluetooth Applications




With Bluetooth being very popular with wireless, it's no wonder there are many applications vailable for the technology. Below, you'll find the applications for Bluetooth.

1. Wireless networking between laptops and desktop computers, or desktops that are in a confined space and little bandwidth is needed.

2. Peripherals such as mice, keyboards, and printers.

3. Cell phones with Bluetooth technology have been sold in large numbers, as they are able to connect to computers, PDAs (Personal Data Assistant), and various other devices. The standard also includes the support for more powerful and longer range devices.

4. The transfer of files, images and MP3, between mobile phones.

5. Certain MP3 players and digital cameras to transfer files to and from computers.

6. Bluetooth technology headsets for smart phones and cell phones.

7. Data logging equipment that transmits data to a computer via Bluetooth technology.

8. Sony Playstation 3 and Nintendo Revolution will both use Bluetooth technology for their wireless controllers.

For Bluetooth, there are literally hundreds of different applications and devices available for you to use or purchase. As you may already know, Bluetooth is the most popular wireless technology in the world. It's very reliable, very dependable,and very hard to crack into.

There are many other applications for Bluetooth in development now, many of which plan to take the wireless age to the next level. Video game systems are using Bluetooth technology as well, for their wireless controllers. This is great news for gaming fans, as Bluetooth offers the best in wireless data transmission.

If your curious about applications for Bluetooth that are still in development, you can search on the internet. You can find all sorts of information, especially when it comes to Bluetooth. As the future arrives, you can expect Bluetooth to bring bigger and better things.



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Bluetooth And Infrared

Published at 7:07 PM in

Bluetooth And Infrared

With new electrical devices being produced every day, the problem of connecting things is becoming more  and more complex in nature. The system that comprises computers and other electronics makes use of varieties of wires, cables, etc.

These parts will communicate through light beams, lasers, radio signals, and infrared. The problem however, is the devices and technology is often the connection between each component. Therefore, most electronic systems aren't used to their full extent due to the problems and imperfections.

To help simplify things, a solution was created - the solution of Bluetooth. Bluetooth is wireless and automatic, offering users a variety of features that have simplified the art of connection. Bluetooth has revolutionized the standard methods of connecting things to enabling almost anything to be connected to a single system.

A side from Bluetooth, there are other ways of connecting wireless devices. One example of such is the IR or infrared. Infrared allows low frequency light waves to transmit signals to another component. This technology is easy to create and the cost of putting the IR device into a system is rather low.

Infrared technology is a one to one process. Due to the limitation, you may only send signals from one device to another, similar to a television set and remote control. You can only transmit signals
between the two although not with a seperate system.

Aside from the fact that these two natures of infrared are obstacles to acquiring results, these same qualities have worked in advantage to the connection. Infrared devices need to be lined up directly, meaning too little interference can occur between the transmitters and receivers.

The technology behind Bluetooth works by transmitting signals through low frequency radio signals. The
path of communication is working on 2.45 GHz, which is the same frequency band used in ISM devices.



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Bluetooth And Apple

Published at 7:01 PM in

Bluetooth And Apple

The new Apple powerbook G4 are among the first computers to offer Bluetooth technology 2.0+EDR. The 2.0+EDR technology, which still backwards compatible with 1.0, is up to three times faster than previous versions, offering maximum data rate transfers of up to 3 MBps. Being the first company to certify a system with 2.0+EDR, Apple continues to make great use of the Bluetooth technology.

Full support In addition to the powerbook G4 portables, thereare other Bluetooth enabled computers available from Apple, including the iBook, iMac G5, eMac, and the Power Mac G5.

Making life easierWhen you turn the Bluetooth feature on, your Mac can easily perform a file transfer or even a synchronization. From the Bluetooth selection menu, you can choose to either send a file or browse devices, quickly and easily. Or, you can click the sync button in iSync to update your cell phone or Palm OS handheld.

The Mac and GSM/GPRS mobile phone with Bluetooth work to make each other more useful. By using  iSync, you can keep your phone updated withouthaving to type any info, as you can keep the
 information in the more manageable address bookon your Mac instead.

You can also use your Bluetooth enabled Mac to print documents and digital images to select a printer that   also supports the technology of Bluetooth. Or, you can also use a headset to talk to your friends during an iChat session.

Your Mac also has the ability to use Bluetooth technology to communicate with your Palm OS handheld. This  way, you can perform a HotSync operation without using any cables. You can alsosend your business card or calendar events directly to someone else's handheld usingthe technology of Bluetooth.

The implementation of Bluetooth by Apple is the latest in a series of moves that have caused great shift in the computer industry. Apple established USB as the standard interface with the launching of the first Mac back in 1998.

Since then, Apple established the 802.11 wireless standard of networking with the launch of the iBook and AirPort in 1999. During 2003, Apple launched AirPort Extreme, which was based on the new 802.11g high speed technology of wireless.

Now, Bluetooth helps to further strengthen the dominant position of the Mac in wireless communications, helping to preserve Apple's reputation for being the first to market with innovative technology that integrates right into the operating system.


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Bluetooth Technical Operations

Published at 6:54 PM in

Bluetooth Technical Operations

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.



Bluetooth Technical Operations

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Save Money by Buying the Right Auto Navigation System for Your Needs

Published at 11:03 PM in

Save Money by Buying the Right Auto Navigation System for Your Needs

With so many GPS (global positioning satellite) devices and auto navigation systems on the market today how on earth is someone supposed to choose the system that will be best for you? The answer to that question isn't as difficult as you might think. It all lies in deciding what you will be using your GPS device to accomplish. You need to know where you will be using your device in order to use it properly. By this I mean will you be using your GPS system for driving, biking, hiking, boating, or 'off-roading'?

Occasionally you will find that your goals and desires of your auto navigation system or GPS will require use in more than one of these instances, the good news is there's a device for that too! Seriously, there is a device that is suitable for almost every possible need and use. If you plan to use your auto navigation system exclusively for driving your automobile, you should probably choose a system such as one of the following: Magellan RoadMate 2200T Portable Navigation System, Garmin StreetPilot c530 Automotive GPS, Tom Tom One, Tom Tom GO 910 Automotive GPS System, or Navman iCN 750 Vehicle Navigation with Camera. These systems each offer something unique to consumers while also delivering some of the same popular features that consumer's love. Some of those features include turn-by-turn directions, landmark identification, important stops and destinations along your route, and popular restaurants along the way.

If you want something that is a little more versatile than your typical stand-alone navigation system or GPS then you might want to check out the many options afforded by the handheld GPS systems on the market today. Many of these will require an upgrade of some sort in order to be useful for turn-by-turn destination information but are excellent for those taking the fun off the beaten path and off road. For those who love adventure in the great outdoors the following handheld GPS systems offer an excellent choice for keeping you on track and in the know: Garmin eTrex Vista Cx Color Handheld GPS Unit, Magellan eXplorist 600, and Lowrance iFinder Hunt Color.

For those who currently own a laptop or PDA software and hardware add ons can turn your device into a GPS system. These offer a more affordable option to the stand-alone navigation system and are an attractive incentive to many potential consumers. You will also find the widest variety of features within this particular category. Most of these devices offer the hardware as well as the necessary mapping software as part of the package. This allows them to have relative portability while also offering the full features of the stand-alone navigation systems. Some of the laptop or Palm systems that you may wish to consider are the following: Garmin CF Que 1620 Compact Flash GPS, Tom Tom Navigator 6 Bluetooth, DeLorme Earthmate Blue Logger, and the Garmin Mobile 20 Smartphone GPS System.

These are by no means all inclusive of the many wonderful and exciting products that are available in today's market for those interested in purchasing an auto navigation system. You should also keep in mind that new technologies emerge on a daily basis. With that in mind, prices on existing technologies are steadily decreasing, as prices on new items are often still quite high. It is very possible to get a great deal by shopping last year's top of the line navigation toy and skipping the high-end navigation gadgets of the current year.

Another way to save money on navigational aids and devices is not to shop among the top of the line devices. Instead of shopping for those that are priced highest, elect devices within the middle of the price range. These devices generally offer the same excellent quality as the more expensive devices without the over inflated price tags. You should also remember not to pay extra for features that you won't be using. Having an extra feature or two shouldn't be a selling point if you won't be using those features.

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Popular Auto Navigation Systems

Published at 11:02 PM in

Popular Auto Navigation Systems

While technology is constantly evolving it is fairly safe to say that there are some toys that are better suited to remain at the top of the heap than others. The story really is no different when it comes to auto navigation systems. These systems each have different bells and whistles and while there is no one system that is perfect for everyone, there are a few systems that are consistent best sellers.

It is important that you as a consumer know what is available in navigational tools before leaping and buying the first thing you see. There are many neat buttons and features that can really turn a girls (or guys for that matter) head if she isn't sure of what she will actually need and use in her (or his) travels. Knowing what you need, what you would like, and what you are fairly certain you can live without will help you get the best possible bargain for your auto navigation system dollar.

Best Selling Models

1) Tom Tom ONE Navigation System. This system is currently the smallest of the portable auto navigation systems that technology is constantly changing so this could be a short-lived accomplishment. Don't let the size fool you however. Tom Tom may be small in size but it is big on features. The atlas is preloaded so you do not need to add any software in order for it to be up and running. Additionally you can subscribe to the plus features if you have a Bluetooth enabled phone, these features will provide accurate and up to the minute weather and traffic data while you travel. Tom Tom offers four different routing options and different views of the map displayed onscreen. Tom Tom One offers turn-by-turn directions and will quickly get you back on track if you miss your turn. The Tom Tom commercials aren't a terrible exaggeration of the great features this little device has to offer.

2) Garmin Nuvi 660 Automotive GPS. This auto navigation system is one of, if not the most advanced on the market today. Again, technology evolves so quickly that there is no guarantee this information won't be obsolete tomorrow. However, for the time being this is the system that has all the bells and whistles that should set your eyes aglow and get your fingers itching to 'play' with it for a while. Of course, being the most advanced generally brings the largest price tag. There really is no difference in this case and only you can decide if the features available are really worthy of the additional fee. In addition the typical navigation features Nuvi is Bluetooth enabled and has extra features for those who wish to subscribe.

3) Magellan RoadMate 2200T Portable Navigation System. This system is another that is wildly popular at the moment. Some of the popularity of this particular system is the direct result of its versatility. This unit is small enough to be used in settings other than the automobile. You will need to purchase an upgrade in order to use it for driving directions but all indications point to this unit being well worth the price, including that of the upgrade. This nifty device also has other functions such as an MP3 player and photo viewer. And is well suited for use away from the automobile for up to 8 hours. You can also subscribe to a service that provides reliable traffic updates including information about traffic snarls as well as road construction. You can also use RoadMate to point out points of interest, restaurants, and fuel stops along your route.

Each of the models mentioned above has some feature that sets it apart from the others and some features that are very much like the others. You will find a wide range of prices as well as features in all units that you choose to check out. These are some of the best selling auto navigation systems on the market at the moment and are a good place to start your search for your perfect system.

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How Do Auto Navigation Systems Work?

Published at 11:02 PM in

How Do Auto Navigation Systems Work?

Have you ever given serious thought to the incredible benefits that having an auto navigation system will bring to your life and your travels? The truth of the matter is that the more sophisticated systems on the market today provide much more than simple directions from point A to point B. Today's auto navigation systems are your one stop travel shop when it comes to finding points of interest, restaurants, fueling stops, and places to sleep along the way.

If you've never given it much thought, perhaps learning a little more about how an auto navigation system really works will give you something to think about when you get around to considering the impact that a device such as this can make in your life and the lives of your family members. The thing to remember is that not all GPS or auto navigation systems are equal. There are different manners of creation along with different manners of functionality and design. However, they all work on very similar principles.

GPS systems use satellites that orbit the earth in order to send signals that are received by the GPS device. The system has software that interprets the signal and uses that data in order to form conclusions about the current location based on the time it took to receive the signal from the satellite, and the exact location of the satellite that sent the data. By combining that information a conclusion can be drawn by the GPS or auto navigation system as to the exact position of the GPS device. Three satellites are used in order to determine the point of intersection and a fourth satellite insures the accuracy of the data.

Auto navigation systems are more sophisticated and much more functional than the original military GPS devices that were used. You can not only get directions to guide you on your trip, to make up for detours, and get you back on track after wrong turns, but you can also get information about local destinations, restaurants, hotels, gas stations, and a few other points of interest along the way. Many auto navigation systems have upgrade packages that allow you to purchase a subscription, which will provide you with up to the minute information about traffic, weather, and construction along your route. The subscription costs for these services may be a deterrent for the casual driver but will prove invaluable to those who rely on correct directions and being on time while traveling extensively through work.

Be sure that whenever you purchase a GPS or auto navigation system that the system you purchase is not only full upgradeable but also easily upgraded. It does no good to have a system that is capable of being upgraded if you can't figure out how to upgrade it. Many of these systems can be upgraded by using a something as simple as a CD or DVD in order to deliver the information and upgrades. If you can't upgrade your system it will become obsolete in time as new roads are constantly being made and old roads are often closed for construction and upgrades. If you do not have the latest data on roads you are essentially driving just as blindly as you would be without an auto navigation system.

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Handheld Auto Navigation Systems

Published at 11:02 PM in

Handheld Auto Navigation Systems 

There are many different types of auto navigation systems. Among the many you will find those that come factory installed, those that are attached to the interior of your automobile through the use of suction cups, and still others that are handheld devices which can simply be installed by attaching a cord to your cars cigarette lighter. These devices don't offer quite the functionality and ease of use as some of the other (need I say pricier) types of navigational devices but you should not be fooled by features that you might not find all that useful in reality.

I'm a bargain hunter by nature. There really is nothing I can do to change my thrifty (some might say cheap) nature. I like having nice things but would like to get them while spending as little money in the process as possible. For this reason alone I decided to seriously consider some of the many handheld navigational tools on the market today.

There are many reasons I find these devices attractive. First of all, they suit many purposes. Not only are they useful when traveling by car (if you purchase the right software of course), they are also quite useful when taking your travels off road as well. You can use them four wheeling in the country, riding horses in wide open spaces, hiking in the hills and mountains, or when getting away by bike for the day. My personal favorite use for these nifty tools however is on the water. I'm a horrible navigator and a mapping handheld GPS is just the thing to keep me on track and on target.

I don't know about you, but I hate feeling as though I am completely and utterly lost. It is a frightening feeling that is only intensified whenever there are children on board during those lost moments in time. Only someone who has ever experienced that feeling while looking into the eyes of her babies and feeling so alone on top of being so lost can really understand. There simply aren't adequate words to describe the deep down inside fear that can take hold in situations such as this if allowed.

The best action to take is proactive. Avoid putting yourself in situations where you will feel lost. This of course, hasn't always been possible in the past. Having a navigational device on hand at all times can go such a long way towards alleviating that fear and calming any qualms someone may have about the need to travel to unfamiliar places at time. Since we must occasionally stray from the world we know, love, and are familiar with it is great to know that there are devices to help us find our way in many situations.

If you are looking for a great gift to give almost anyone on your Christmas list this year, a nice handheld GPS system with mapping capabilities is a great gift to give. Of course, you do not really need to wait until the holidays in order to give a gift such as this-especially if you are giving it to someone whose safety is of great importance to you. I think anyone who drives, bikes, boats, floats, hikes, or rows could find a great deal of use for tools such as this, particularly females who enjoy these activities and occasionally enjoy them alone.

No matter what your specific needs in auto navigation systems may be, there are many systems that could suit them quite nicely. Take the time to study what is available and reconcile your needs with your budget in order to find the one that will work best for you. Handheld GPS systems with mapping abilities offer a highly affordable option along with some surprising extra features, which will make them attractive in and out of the automobile. Good luck in finding the perfect auto navigation system for you. It's out there somewhere.

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Bluetooth Operation

Published at 10:30 AM in

Bluetooth Operation

The networking standards of Bluetooth will transmit data via low power radio frequency. Bluetooth
communicates on a 2.45 GHz frequency. This very band of frequency has been set aside by international agreement for the use of industrial and medical devices.

Many devices that you already known and use take advantage of this frequency band. Garage door openers, baby monitors, and the next generation of mobile phones all use this frequency within the ISM band. Ensuring that Bluetooth and the other devices don't interfere with each other is a crucial part of the design process.

One of the ways Bluetooth will avoid interfering with other electronic devices is by sending out weak signals of around 1 mw. In comparison, even the most powerful of cell phones can transmit a signal of 3 watts.

The low power signals will limit the range of a Bluetooth device to around 32 feet, which cut the
chances of interference between your computer and other electronic devices. Even though it has low power, Bluetooth doesn't require a line of sight between the communicating devices. The walls in your home won't stop the signal, making it great for rooms throughout the house.

Bluetooth can connect 8 devices at the same time. With each of those devices on the same radius, you may think they would interfere with each other, although it's very unlikely. Bluetooth utilizes a technique known as low frequency hopping, which makes it harder for more than one device to transmit on the same frequency
at the same time.

With this technique, a device will use 79 individual, randomly chosen frequencies within a designated range, which change from one another on a regular basis.

In the case of Bluetooth, the transmitters will change frequency 1,600 times or more every second, meaning that more devices can make full use of the radio spectrum. Since every transmitter of Bluetooth will use spread spectrum automatically, it's very unlikely that two transmitters will be on the same frequency at the
exact same time.

When the Bluetooth devices come within close range of each other, an electronic conversation will occur to determine whether or not they have data to share or whether one needs to take total control. The user doesn't have any buttons to press or commands to give - as the conversation will occur automatically.

Once the conversation has occured, the devices will form a network. Bluetooth devices will create a PAN (Personal Area Network) or piconet that may fill a room. Once the piconet has been established, the devices will randomly hop in frequencies.



Bluetooth Operation

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Four Great Reasons to Buy an Auto Navigation System

Published at 11:02 PM in

Four Great Reasons to Buy an Auto Navigation System

If you are one of the many people around the United States of America and the world that has debated whether or not to purchase an auto navigation system for your vehicle perhaps this article can help you understand the major benefits of owning such a system. There are many benefits but there are four that seem to take precedence over all others. I believe you will find many of the four reasons quite compelling and may even change your mind about the need you and your family may have for a device such as this.

1) Safety. We live in a day and age where we can no longer rely on the kindness of strangers when it comes to stopping and asking for directions. Admitting you are lost to a stranger is sometimes more dangerous than actually being lost. Even in the modern day of cell phones there are areas in which even those can't be reliable and they aren't really much help if you have no idea where you are in order to get directions to begin with. Safety is an even greater issue if you are a female traveling either alone or with small children. You do not want to make yourself a target whenever you can avoid it. Having an auto navigation system can definitely salvage your trip despite wrong turns, detours, or bad directions to begin with.

2) Security. This goes along with safety to some degree but takes it one step further. Not only do you have and added degree of security from harm or the ill will of other men, you also have a layer of security when it comes to things such as getting to work, court, important meetings, job interviews, dates, or anniversaries on time. You will no longer have the worry of costly traffic delays, particularly if you subscribe to upgrade services, which provide minute-by-minute traffic analysis and areas to avoid. There is also the security of a lower stress commute to your destination even when you aren't certain of where you are going. Morning commutes are often filled with stress, adding uncertainty to that stress is not the best way to start off your day.

3) No more maps! This one is a huge bonus to me when it comes to my driving habits. I am not the most gifted reader of maps. In fact, I seemed to have received no gifts when it comes to that particular talent. My auto navigation system saves me the hassle of carting around multiple maps for long road trips while also providing the security of knowing I will not have forgotten an important one only to discover it is missing all too late.

4) Having the country at your fingertips. Literally! A good auto navigation system is like having a map to the entire country on hand at all times. Impromptu road trips are the word of the day and no longer require the painstaking planning of days long past. You can even get door-to-door directions to arrive safely and quickly at your destination.

Of course these are not the only reasons that buying an auto navigation system is a great idea, but the certainly make the decision a little easier. As the technology required for these systems evolves prices are dropping almost weekly. Now is the perfect time to buy a great navigation system for your car, truck, or SUV at a terrific price!

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Bluetooth In Action

Published at 10:26 AM in

Bluetooth In Action

In the United States, Bluetooth gets absolutely no respect. It is however, becoming more and more common  in notebooks, PDAs, and especially cell phones. Bluetooth will provide wireless users away to transmit small amounts of data over short distances.

Now, Bluetooth is facing stiff competition from new wireless technology. Referred to as UWB or Ultra Wideband, it promises data transfer of up to 480 MB a second - while most current Bluetooth devices transfer data up to 721 KB a second.

For the time being, Bluetooth devices are surely cropping up. Below, we will look at some of the accessories offered with Bluetooth technology.

Talking to the dashboard When pairing it with a cell phone, the CCM Blue Warrior car kit becomes a great speaker phone that plugs into the power adapter of your vehicle. The noise cancelling microphone will reduce  background noise efficiently, with the large buttons making adjusting the speaker volume a snap. Although
the Blue Warrior is far from sexy or sleek, it's very practical.

Tiny tuning box
Part MP3 player and part hands free phone, the compact and lightweight Sony HBM-30 is an attractive
gadget that lets you accept calls with minimal interruption of your tunes. When you get an incoming
call it will automatically pause your music, then you speak into the built in microphone that you can wear around your neck or clip to your clothes.

The pen
With Nokia's SU-1B digital pen, you can doodle and make hand written notes in ink on a special pad then transmit them from the pad to your Bluetooth phone. Being an alternative to typing on a cell phone keypad, the pen is very handy, although a pricey tool from MMS fans.

Snapshots
If you want to make slide shows with your camera photos, the Nokia SU-2 image viewer will let you disply your pictures on a TV or projector. Simply hook this square gray device to your TV's input with the built in cable, then beam the pictures to the SU-2 from your Bluetooth enabled phone and the photo fest will begin.

This device is a snap to set up and use, although it displays resolutions of up to 640 by 480. If you have a newer phone that takes high resolution photos, you won't be able to use the Nokia SU-2 image viewer.

Keep in mind, the 640 by 480 pixel photos will appear blocky on TV screens, no matter what you do. If your phone can send batches of photos, you can create a slide show - although Nokia claims you can use sequentially beamed shots as well.


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Auto Navigation Systems have Many Talents

Published at 10:59 PM in

Auto Navigation Systems have Many Talents

Today's auto navigation systems aren't just for the car, truck, or SUV. More and more manufacturers are discovering that offering drivers the option of taking their navigation systems off road is an incredible boon to sales. With this realization they are delivering on many levels previously unheard of. There are even GPS and navigation systems that are designed in order to assist in finding a great catch. Perfect for the fisherman in your life.

Seriously if you're looking for creative ways in which to justify the expenditure of an auto navigation system, perhaps the following activities and ideas can help:

1) Biking. Biking isn't limited to sidewalks and roadsides any more. People are becoming much more adventurous and demanding of their bicycle travel today and taking the tour off road. This means that there isn't always a clearly defined path to guide you to your destination or even to find your way back to civilization. A good GPS or auto navigation system can help you find your way back home no matter how far you've strayed.

2) Geo Cashing. This is a relatively new pass time activity that seems to be taking on a life of its own. For those who enjoy this activity I am sure you are well aware that it occasionally takes you well away from the ordinary beaten path. Not all of us are as observant as we should be while looking for something and discover all too late that we have no real clue as to how to get back to the point we began. You will use your GPS system for the purpose of geo caching, but if you purchase a minor upgrade you can also use it to guide you back to your point of origin should you find yourself lost in the woods.

3) Hunting. There is no rule anywhere that even remotely indicates a necessity for navigational skills in order to make an excellent hunter. In fact, I've known more than a few hunters who have a difficult time finding their way home some days. For these fellows and femmes, there is hope and a way to save face. Navigational assistance is a great way to discover where you are, where you've been, and get your where you want to go.

4) Boating. If you've ever been in the open sea I'm sure you'll understand what I am saying when I say it is very easy to become disoriented as to where you are headed. Now, those who are seasoned at navigation will tell you it's a piece of cake. I'm here to tell you that they must have learned it at their daddy's knee because I certainly tried to learn as an adult and it still seems completely Greek to me (of course, perhaps it is, I've heard that the Greeks are phenomenal sailors). Regardless, GPS and auto navigation systems can make your journey by sea a much safer experience while helping insure that you reach your destination, preferably without incident with any sandbars in the region.

By car, land, bike, and sea auto navigation systems have a great deal to offer the savvy consumer. Take the time to study the many options for GPS equipment and find the one that will suit the inner explorer in you. You will find it is well worth the investment if you use it often and use it well.

PPPPP

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Bluetooth Glossary

Published at 10:26 AM in

Bluetooth Glossary

Below, you'll find a list of the most used terms in Bluetooth technology. They can serve as a look up, or to help you learn more about Bluetooth terms in general.

2 in 1 handset
The situation where a subscriber's handset is acting as a remote handset to a base unit that provides a network connection.

3G
Third generation, referring to the next generation of digital phone technology.

802.11 WLAN
A wireless LAN specification defined by the IEEE.

Access code
Each base band packet will start with an access code, which can be one of 3 types - CAC, DAC, and IAC.

ACK
Acknowledge.

ACL
Asynchronous Connectionless Link. This is one of the two types of data links that are defined for Bluetooth.

ACO
Authenticated Ciphering Offset.

Active mode
During the active mode, the unit will actively participate on the channel. The master will schedule the transmission based on traffic demands from the different slaves.

AP
Access point.

Authentification
The process of verifying who is at the opposite end of the link.

Authentification device
A device whose identity has been verified during the lifetime of the current link based on the authentification procedure.

Baseband
This describes the specification of the digital signal processing aspect of the hardware - the controller - which carries out the baseband protocols.

BB
Abreviation of baseband.

BD
Bluetooth device.

BER
Bit Error Rate.

The above is more of an intro to the terms that are used with Bluetooth. Bluetooth currently has hundreds
of devices, making it the best wireless solution in the world. With more coming out every day, you can
bet that Bluetooth will be around for many years to come.

If you are new to Bluetooth, the terms used can be very helpful. There are hundreds of glossary terms that apply to Bluetooth, many of which describe shortcuts to common terms. You can learn a lot by reading over the meanings, especially if you have never used Bluetooth technology before.

Those of you who have experience with Bluetooth, can look over the glossary of terms to brush up on your knowledge or just check out what an unfamiliar term actually means. Nothing is complicated with the meanings, although they make take some getting used to.

Once you have been around Bluetooth for a while, you'll find yourself right at home with the terms and meanings to the technology. All you need to do is play around with it, and read books or manuals
whenever you get the chance. Before you know it, you'll be a professional in the vast world of Bluetooth wireless.


Bluetooth Glossary

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Things you won't be told about Auto Navigation Systems

Published at 10:59 PM in

Things you won't be told about Auto Navigation Systems

Auto navigation systems have come such a long way since their inception. It's hard for many to see the product that exists now and realize exactly how far these devices have come since their origins in the U. S. Armed Forces. The thing to keep in mind and remember is that they still have a long way to go. These devices are far from infallible and still have some serious faults that prohibit us from canning the compass and maps all together.

One thing to keep in mind is that there are almost always problems of some sort with electronic equipment. This is especially true when it comes to equipment that is run by software. If anyone doubts the validity of this statement, check out a computer that is run by Windows? We often find ourselves at the mercy of the limitations of the software we are using. The same holds true when it comes to software driven auto navigation systems and GPS devices. This fact alone makes them a little unreliable. For those times when reliability isn't at its best keep in mind that for the most part the system works well. It's just difficult when the times you need it to work well are the times when it is malfunctioning. The good news is that the units themselves are often quite resilient and even able to withstand the manhandling a typical rough and tumble two year old can dish out.

It is also important to keep in mind that GPS technology isn't meant to replace the use of maps or of common sense when driving. You can only store so much information on a GPS device and roads are constantly being built, changes, constructed, improved, and moved. For that reason alone it is nearly impossible to guarantee that any device will have 100% accurate information at all times. You should however, choose a device or auto navigation systems that allows frequent and simple upgrades to the maps provided. Updating regularly and immediately prior to any large trips will go a long way towards saving some serious hair pulling while you travel.

Another thing to keep in mind with your auto navigation device is that it isn't all that reliable whenever you don't have a clear view of the sky. For that reason there may be times when you aren't able to get a clear signal. Tunnels are a great example of one of those times. It's not just about one signal, the device must be able to lock onto three satellites at the very least in order to be 'seen'. A fourth satellite is usually required for verification of the data. This means that in some situations where you have a clear view of the sky, you may not be in a position where all four satellites have a clear view of you and more importantly your device.

GPS and auto navigation systems are still a far cry better than trying to read dusty old maps for most of us. Despite that, it is always a good idea to go into a buying situation with all the facts in hand rather than thinking you've discovered the next best thing to sliced bread only to find out that the crust is a little hard and crumbly at times. This technology is wonderful and affords many benefits to those who are willing and able to make use of it. It will never sacrifice common sense or map reading skills however and that is important to understand.

PPPPP

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Advantages And Disadvantages Bluetooth technology

Published at 6:48 AM in

Advantages And Disadvantages Bluetooth technology

Bluetooth has a lot to offer with an increasingly difficult market place. Bluetooth helps to bring with it the promise of freedom from the cables and simplicity in networking that has yet to be matched by LAN (Local Area Network).

In the key marketplace, of wireless and handheld devices, the closest competitor to Bluetooth is infrared. Infrared holds many key features, although the line of sight it provides doesn't go through walls or through obstacles like that of the Bluetooth technology.

Unlike infrared, Bluetooth isn't a line of sight and it provides ranges of up to 100 meters. Bluetooth is also low power and low processing with an overhead protocol. What this means, is that it's ideal for integration into small battery powered devices. To put it short, the applications with Bluetooth are virtually endless.

Disadvantages Bluetooth has several positive features and one would be extremely hard pressed to find downsides when given the current competition. The only real downsides are the data rate and security. Infrared can have data rates of up to 4 MBps, which provides very fast rates for data transfer, while  Bluetoothonly offers 1 MBps.

For this very reason, infrared has yet to be dispensed with completely and is considered by many to be the  complimentary technology to that of Bluetooth. Infrared has inherent security dueto its line of sight.

The greater range and radio frequency (RF) of Bluetooth make it much more open to interception and attack. For this reason, security is a very key aspect to the Bluetooth specification.

Although there are very few disadvantages, Bluetooth still remains the best for short range wireless technology. Those who have tried it love it, and they know for a fact that Bluetooth will be around for years to come.


Advantages And Disadvantages Bluetooth technology

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10 Benefits Of Bluetooth

Published at 6:47 PM in

10 Benefits Of Bluetooth

Below, are 10 benefits and reasons to use Bluetooth technology.

1.  Wireless
As you probably already know, there are many benefits and advantages to using wireless devices.  Along with improving safety as a result of eliminating wires you don't need, wireless also offers you plenty of other advantages.  When traveling with your laptop or other wireless devices, you'll no longer have to worry about bringing connection cables.

2.  Bluetooth is actually inexpensive
The technology of Bluetooth is cheap for companies to implement, which results in lower costs for the company.  These savings are then passed from the company on to you.

3.  Bluetooth is automatic
Bluetooth doesn't have you set up a connection or push any buttons.  When two or more devices enter a range of up to 30 feet of each other, they will automatically begin to communicate without you  having to do anything.

4.  Standardized protocol
Bluetooth is standardized wireless, meaning that a high level of compatibility among devices is  guaranteed.  Bluetooth will connect devices to each other, even if they aren't the same model.

5.  Low interference
Bluetooth devices almost always avoid interference from other wireless devices.  Bluetooth uses a technique known as frequency hopping, and also low power wireless signals.

6.  Low energy consumption
As a result of Bluetooth using low power signals, the technology requires very little energy and will use less battery or electrical power as a result. This is an excellent benefit for mobile devices,  as Bluetooth won't drain the battery.

7.  Sharing voice and data
The standard for Bluetooth will allow compatible devices to share data and voice communications. This is great for mobile phones and headsets, as Bluetooth simplifies driving and talking on your cell phone.

8.  Instant PAN (Personal Area Network)
You can connect up to seven Bluetooth devices to each other within a range of up to 30 feet, forming a piconet or PAN.  For a single room, you can also set up multiple piconets.

9.  Upgradeable
Upgradeable is the standard for Bluetooth.  There are newer versions of Bluetooth in the works,  which offer many new advantages and backward  compatible with older versions.

10.  The technology stays
Bluetooth technology is a world wide, universal wireless standard.  With it being as popular as it is, you can count on it being around for years to come.  As more and more devices start to use Bluetooth technology, more manufacturers will be eager to make their products compatible.  A chain reaction will occur, making Bluetooth the standard for cutting edge wireless.



10 Benefits Of Bluetooth

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