Universal Wireless Network

Bluetooth is a wireless telecommunications system that all types of devices - including computers - with each other networks. WLAN is not, something else. The best description is that of PAN or Personal Area Network. We tested several Bluetooth devices and look especially at how well (or how poorly) the various brands together.
interface_bluetooth
A WLAN or wireless network is limited to wirelessly connect computers via an Ethernet-like solution. Bluetooth comes from the more traditional
communications industry and is on a microwave-based wireless high-speed transmission. This technology is promoted by an impressive collection of companies that constitutes one or SIG
'Special Interest Group' form. Companies like Ericsson, IBM, Intel, Nokia and Toshiba are among the roaring names make it up.
The big problem with many smaller devices with built-in communication services is that so far no truly universal and decent way to achieve them together information to
exchange in a PAN or Personal Area Network. We had specific physical features that are not necessarily enable and configure each device on board had to make the necessary
not to mention software.


Default
It is envisaged that Bluetooth put an end to it (also read: File Interfaces, Bluetooth). It is not just a communications standard, but also a standard on
communication protocol and formats of wireless data exchange.
Bluetooth defines the simultaneous or separate transmit and receive voice and data in the frequency band 2.4 to 2.4835 GHz (2.45 GHz normal for our country and this frequency band is normally
Reserved for ISM applications - which stands for "Industrial Scientific and Medical" or industrial, scientific and medical). Bluetooth creates a purpose of its kind which netwerkje
maximum eight devices can occur. The first device to a Bluetooth network 'start' the master of that network, other devices than slaves.
Within a Bluetooth network can communicate from point to point (between two specific devices) or a multipoint connection up (from the master to all slaves). You may
transmission rate exceeding 1 Mbit / s (usually less) and expect the maximum range is officially 50 meter USB units and 10 meter for most PC Cards, but you take from us
that you do not reach 50 meter, especially inside buildings where walls and various obstacles in the road.
Despite the presence of other microwave sources you generally within the normal working distance of several meters of any interference in the signal down. This has to do with the
Bluetooth fact that sixteen times a second frequency varies in a range of 79 channels is a problem somewhere, then just turn it on that channel. Elegant and simple.


Services
In a Bluetooth network may occur in virtually all devices capable of communication. This includes mobile phones, PDAs, like images and video cameras, headsets (which are combinations of a
headset and a microphone), printers and print servers, modems, remote controls, electronic keys and what you store more can imagine. Of course there are also PC cards for notebooks
and expansion cards (PCI or USB) for PC's Bluetooth connectivity to those computers to deliver.
In this case we have a whole range of Bluetooth products requested so we can let you know as much as possible. The basis of any communication, the Bluetooth device for pairing
a point-to-point connection. Once the pairing is established, the paired devices each state what services they offer and support. If a joint service
can be agreed, through which service data can be exchanged. If no service is common, one of the departments may still serve. In the worst case two
equipment more involved, but they each other's services do not 'see' and then any further communication impossible.


Network
If you think a Bluetooth card behaves like a traditional network, then think again. There is not really meant for. You need the system more as a wireless version
the infrared port rather than as a traditional Ethernet network. However it is sometimes possible. Then the producer shall ensure that a Bluetooth adapter in your network configuration
is bijgeplakt. They can then as a regular network with the desired order via NetBEUI network protocols, TCP / IP or IPX between Bluetooth computers or notebooks to networks.


Test
We view the various functions of Bluetooth devices and especially pay attention to interoperability. The following types of devices are discussed:

- Bluetooth Adapters
- Bluetooth mobile phones (cell phones) and PDAs
- Bluetooth printers
- Bluetooth cameras
- Bluetooth headsets

Open the various categories in the contents of the file you pass to the right of this article find.
Conclusion
Despite promising on paper specifications of Bluetooth, the technology appears in practice often only good usable between devices of the same brand. Mixing different brands of equipment we, then it is soon a big mess. PCs and notebooks and related peripherals via Bluetooth mixing is usually much better. As we see it, Bluetooth still many teething problems overcome.