Showing posts with label Radio. Show all posts
Showing posts with label Radio. Show all posts
Bluetooth Technology – Discover the Best Photo Printers, Mobile Printers and Gadgets
Bluetooth technology works by transmitting low-powered radio signals in the 2.4 GHz range. Bluetooth wireless technology can penetrate solid objects, and unlike other technologies, it is omni-directional. This means that the technology does not require line-of sight positioning of connected devices and can communicate with other devices and extend beyond doors, walls and even different levels of a building. As long as the devices are in range, they can interact. This enables us to setup a personal-area network (PAN), which translates into the ability to own devices that can detect and interact with one another as they come within range of one another.
How close do they need to be you ask? That depends on the class of the Bluetooth device. There are two classes of Bluetooth. The first class, the weaker of the two, can transmit signals over a 33 foot range. The second class, the stronger of the two, can send and receive signals as far as 328 feet away.
In most cases you truly only need to be 10 to 20 feet or so away from these devices, as is the case with bluetooth printers. For the typical home user, you will likely be in the room with the printer or in a room close by to where the printer resides. The advantage of these devices is that you can print from far away sans wires. This technology is at the heart of innovations such as wireless printers and mobile printers. If you are on the go, who wants to lug with them a nest of wires to connect their printer to their laptop – Heaven forbid you forget to bring the wires and then are left up a creek without a paddle. Bluetooth allows the laptop and printer to effortlessly communicate with one another, assuming Bluetooth is built into both devices, or if your laptop has a Bluetooth card adapter. Luckily this feature comes standard on today’s generation of devices.
A great example of a Bluetooth printer is the HP Photosmart C5580 All in One Inkjet Printer. This printer, like most hp wireless printers, can print directly from Bluetooth devices and can print up to 34 pages per minute. The device also copies, scans and includes features such as its automatic paper-type sensing. HP printers are a popular choice for consumers in the all in one and photo printer categories.
The best photo printers come with Bluetooth technology so you can wirelessly, and rapidly, communicate and send photos from your digital camera to your wireless printer. Bluetooth can transmit data at a rate of up to 3 Mbps, which is very fast. Bluetooth enables you to quickly and efficiently send digital photos to your printer, where you can then instantly make photo prints. In addition to HP printers, Canon printers are also best-in-class for photo printers including Canon’s line of canon pixma printers. The Canon PIXMA MP610 Photo Printer comes equipped with Bluetooth technology, a 2.5” TFT previewing display and spectacular 4800 x 9600 color dpi results.
If there’s one drawback to Bluetooth it is the level of security. Because Bluetooth devices can connect to networks so easily, then it might be possible for someone to eavesdrop on you using another Bluetooth device. Bluetooth security is in the hands of electronics manufacturers who can produce devices that are secure or unsecure. So shop wisely and use the best, most trustworthy of brands.
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Bluetooth Mobile Phones – Connectivity Simplified
The mobile phone industry is one of those many industries that is fast escalating the rungs of progress, courtesy of the evolving technology. Since the inception of the very first mobile phone on Earth, the industry hasn't ever looked back. Human beings are unfalteringly becoming prone to technological development, and the mobile phone industry is playing its part as a catalyst to the epidemic. Owing to this development, there is hardly any room left for fastidious consumer behaviour as all the mobile phone manufacturers are gulping a sip of the potion of technological progress to oust one another. Bluetooth technology is one of the numerous developments that has taken the mobile phone market by storm. No wonder almost every mobile phone in the market flaunts this technology today.
How does it work?
1.Bluetooth is a wireless network technology, through which you can transfer data in the form of radio waves between a Bluetooth enabled phone and computers, laptops, printers, and other compatible devices.
2.The maximum range within which data can be shared through it is 10 meters.
Why go for a Bluetooth mobile phone?
1.Bluetooth is the most hassle free network technology for data sharing between compatible devices.
2.Bluetooth allows users to share all kinds of data, such as image files, music files, video files, and text documents.
3.You can share data even on the move between mobile devices as Bluetooth runs on a wireless network technology.
4.Bluetooth technology ensures high speed and efficient sharing of data between Bluetooth enabled devices as the range of network is a meagre 10 meters.
With all these facilities available at the hands of a Bluetooth device wielder, it is hardly a surprise that Bluetooth has become such a big hit in today's world. And with technology rapidly gaining newer grounds in the mobile phone industry, Bluetooth technology may well go to higher levels of development.
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Article Source: http://EzineArticles.com/?expert=Elizabeth_Wills
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It's Safe To Use Bluetooth Technology In Cars
Frequency Hopping In Timeslots
Bluetooth technology in cars can hook your cell phone to a hands-free headset or it can hook up to your iPod and play the music through your car speakers. There are many other things you can use Bluetooth technology in cars, but playing music and talking on the phone are two of the most used activities.
Bluetooth technology in cars works very much like a combination of a radio and a walkie-talkie. It just doesn't pick up one kind of radio frequency, however. It can pick up several frequencies of radio waves. This is how it can concentrate on one source of information at a time, instead of trying to broadcast all radio stations or telephone conversations in the area at once.
Data or information is sent in units called "packets" to your Bluetooth device. This could be your phone sending it to your headset, for example. Your Bluetooth and your cell phone work together to send these packets from one radio frequency to another, never staying on one frequency for too long. Technically, this is called "frequency hopping in timeslots".
Bluetooth can only work in a small area, such as your car. This means that you can't pick up the music from the Bluetooth used in the Hummer next to you and you only hear the music that you want to from your Bluetooth. However, if the Hummer next to you has the window down and the volume set high, you will hear the music. No Bluetooth technology in cars can help you with that…yet.
Be Sensible
Somebody else with a wireless handheld device or a laptop and a good encryption program can listen in on your packets sent between your Bluetooth and your electronic devices. However, they pretty much have to be in the car with you in order to transmit any malware (malicious software). However, you should never have your Bluetooth on when you have somebody you do not know in your car. You also should keep your Bluetooth hidden, if at all possible.
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What Is Bluetooth Technology? A Really Fancy Radio
Frequency Hopping In Timeslots
So, what is Bluetooth technology? It's a radio for wireless devices. It's also a translator, making, say, phones with Bluetooth technology able to download information to your PC or Laser printer. It only works for short distances, but it does keep your hands free. If you do a lot of driving for your job, then what is Bluetooth technology for you? A lifeline!
The actual science to describe every detail of what Bluetooth technology is would take up a book in and of itself. This will just be a summary, but it will still give you a good idea of what it's all about. Technically, the name of the means a Bluetooth device uses to do the magic it does is called "frequency hopping in timeslots".
Now, what does that mean? It means a Bluetooth device keeps changing from one radio frequency to another after a certain "packet" of data is received. This packet of data could be a unit or time, an email or small bits of information. Data or information is sent out on a global radio frequency. A computer chip in the Bluetooth device picks it up and acknowledges receiving it and then switches to another frequency. The gizmo sending the information also changes to that frequency. In case you're wondering, there are a lot of frequencies a Bluetooth can pick up.
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