Improvement is something we aim to do in our next article on bluetooth cellular. We intend to provide an improved article on bluetooth cellular in the near future.

A bluetooth cellular Artilce for Your Viewing
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 bluetooth phones 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 bluetooth phones on the
2.45 GHz frequency band, and supports up to 721
KBps, along with three voice channels.

Each devices bluetooth offers a unique 48 bit address from
the bluetooth phones IEEE 802 standard, with the connections being
point to point or multipoint. The max range is
10 meters, although it can bluetooth headphones bluetooth headset 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 bluetooth phones 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 bluetooth phones bluetooth headset 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 cellular Products we recommend
Bluetooth USB Adapter PC850 for Pcs & Laptops

Bluetooth USB Adapter PC850 for Pcs & Laptops
The Bluetooth PC850 PC Adapter lets you take it all along without feeling tied down. Plug the adapter into your computer's USB port and let the music flow! You can listen wirelessly on your Bluetooth Stereo Headphones or combine with the Bluetooth Home Stereo Adapter to stream audio through your home stereo speakers.

Customer Review: great deal

product arrived as expected

work exactly the way it was suppose to

Customer Review: Great product

We were looking for Bluetooth technology for Motorola/Sony computer. This is perfect.

TomTom Navigator 5 Software with Maps of North America for compatible PDAs with Bluetooth

TomTom Navigator 5 Software with Maps of North America for compatible PDAs with Bluetooth
The TomTom Navigator 5 (Software Only, US) is compatible with many of the leading Bluetooth-enabled PDA devices, including selected models from Palm, Sony, Dell, Hewlett-Packard, T-Mobile, and more. With Navigator 5 you can turn your PDA into a leading navigation tool that gives you clear and accurate spoken-word instructions and 3D maps that lead you from door-to-door in your travels. The software is loaded with maps of the United States and offers convenient itinerary planning features that allow you to plan routes to multiple destinations and add stopping points along the way.

Navigator 5 makes navigating the roadways as easy as it gets. You can have the option of choosing the quickest routes, the routes with the shortest distance to travel, or ones that avoid toll roads. The software contact navigation lets you navigate directly from your PDA address book, and you can even review the calculated route before you actually start driving.

A touch-screen operation and intuitive interface simplifies your navigation tasks, while the interface's dynamic status bar can be customized for optimal readability.Other features include useful onscreen tips that will guide you through Navigator 5's many options; multi-lingual functionality that offers voice instructions in more than 30 languages, in both male and female voices, and a user interface that includes 18 languages; millions of points of interest, such as parking, gas stations, hotels, and restaurants; and a compass mode that displays a compass on screen for even more orientation while driving.

Note: See Technical Specifications for full list of compatible PDA devices.

What's in the Box
CD-ROM set, installation poster, quick start guide, and product code card.

Customer Review: Not a reliable device

Tomtom maps and application is not a reliable product that you can count on when you are traveling and do not have access to your PC and the disks. This is the second time that the application has stranded me and I am writing this review for others interested in purchasing this program not to get in a situation like I have, and Tomtom staff to read and fix the problem.



I purchased a Tomtom with an HP PDA to travel through Europe (mostly Italy). I installed the software and got an authentication code from the site they specified and started using the device. After about a month of use, and feeling confident that I did not need a paper map, we took a trip to Florence, following Tomtom's direction. After about 20 minutes, the program froze. It would not even respond to a soft reset. I had to take the battery out to get windows CE up and running. After the operating system restarted, I started Tomtom program. It asked me for an activation code. Have in mind that I am in the middle of Italian countryside and not sitting in Silicon Valley. I had to call my office and they went to my office and found the original CD's, went to the authentication site and got the activation code. I found this to be just unreasonably senseless. I appreciate copy right protection, but the people who thought of this scheme must not go out of the office much. I thought of writing a review but did not and latter forgot about it.



I recently bought a cell phone/PDA that has a built in GPS. To avoid having a phone and GPS I tried installing the European map on this phone (it already had the US maps on it). I went through the installation which took for ever and went to the website and got the activation code and tried entering it and it says that the activation code is not valid! So, I call Tomtom support in UK from Germany. The first customer service person was very nice and gave me some advice on how to get an update. I followed the advice and it still did not work. I called the support line again, this time a Mr. Rick answered. This person needs to be assigned to a different department. He basically spent 30 minutes lecturing me on software copy protection. He then asked me to do a hard reset. I told him I did not know how to do the hard reset. He spent another 10 minutes telling me that he is not an HP specialist and that I need to contact HP for support. At this point, I realized that this person was not able to help resolve the problem and asked for escalation to a supervisor. Rick (customer service rep) said that the supervisor would not take my call because I did not do what he was telling me to do (which was not exactly true, because I asked him to help me with the reset and he would not).



I got off the phone and went to the HP site and downloaded the user's manual and did a hard reset. This caused everything to be erased (including my addresses), and Tomtom program to be deleted. And guess what, I call the customer service number again, and they did not know what to do. So, they asked for more time to research the problem and to call me. In about 4 hours not having heard from them, I called again, and this time they told me to download another program that would resolve the problem. I downloaded and it did not solve the problem. I got an email a couple of hours latter telling me to use the original SD card (which is back home) to resolve the problem.



So, to make a long story short, this is not a reliable device and for anyone who has traveled in unknown places, it is a nightmare.



Customer Review: Waste of Money!

TomTom Software Review!

Pros: Being able to have it integrated on the Smart Phone or PDA.

Cons: Inaccurate Maps (we are talking miles not feet!), Difficult of use, cumbersome menus, lack of POI's, Wrong POI locations, crashes often and the list goes on....



Review:

This software should be labeled a beta software until the company works out all its problems, it should be never compared to Garmin or Magellan, I owned both and it does not even come close.

I will start with the pros since it will take the least time to mention.



Pros: Convenience of having a Navigation loaded on your phone, the GPS receiver can be left in the vehicle except when you are hiking for example.



Cons:

Maps:

The inaccuracy of the Maps are incredible and can lead you to a wrong place or miss a free way exit.

Maps are out dated; it did not show streets that have been updated on all map search engines 18 month prior.

You can not click and pan the maps to see the route ahead while on route.

Crashes often, about once every 2~3 days.

You would expect to be able to easily access your address book or contacts to navigate to a saved address; right? Not with TomTom, you have to exit the application and open another application called tomtom contacts there you can select a name and from the pull down click on navigate to address, it would then open the main navi software and show you the route, Oh but if for some reason you did not have your satellite locked yet, then you will have to exit out and do the same thing all over again! I think you agree that this is a bit cumbersome.

Sync

It gives data base errors of "WARNING: Possible database overwrite problem....", after contacting the customer service they said that it is a known problem! And nothing can be done???!!! So now every time I sync I have to ignore the warning message so other problems might go unnoticed thanks to the smart developers at TomTom.

POI (Points of Interest):

Again incomplete, inaccurate and difficult to use. For example if you are looking for a certain store and the search returns 6 and let us say the first 3 are approximately 3mi from where you are, you will not be able to select each one to further know more info - all you can do is pick one to get the directions to.

SD card:

Every time you insert the SD card into your PDA, the TomTom application will have start, and No, this is not an option you can turn off.

Customer Service:

Not very helpful, not knowledgeable about their products or offers and take long time to answer questions or concerns.



I am disappointed at the product which could have been an incredible for the convenience, I hope that the people involved in making decisions for the company go out and buy some different Navigation units and see how they can improve their product.



Thanks for your time reading my review!

Giro G10 Snow Helmet

Giro G10 Snow Helmet
The Giro® G10 snowboarding helmet offers you a lightweight, low-profile shapes for easy use all over the mountain. It's designed with 3 ventilation settings and clean lines.

Current bluetooth cellular News
Reduce power consumption in UWB chips - Eetasia.com (subscription)

Wed, 30 Apr 2008 11:30:25 GMT

Reduce power consumption in UWB chips Eetasia.com (subscription) - 3 hours ago This growth stems from UWB's application as a wireless enabler for mobile devices such as cellular phones, digital still cameras (DSCs), notebook computers ...

Review: Jabra BT8040 Bluetooth Headset

Mon, 28 Apr 2008 00:00:00 CST
There was very little static or interference present during calls and what was present was due to the cellular signal, not the Bluetooth connection. ...

Verizon launches LG Chocolate "Flip"

Thu, 16 Nov 2006 10:32:28 GMT
Filed under: Cellular, Hardware, Business The LG Chocolate, a rather standard wireless handset wrapped in a cool color and design and agressively marketed by Verizon Wireless, has a new sibling …

3650 bluetooth