Wi-Fi congenital or acquired: what to choose? ..
Your PDA has Wi-Fi? - Very good. No? - It does not matter. Wi-Fi adapters on our market a huge amount. Want adapter based on the CF card - please, or, say, based on the SD card - no problem! Today nothing can stop you to go online or to travel on a home network with your Pocket PC. All adapters for handhelds in general have similar features, and price is not much different. Models with a Compact Flash slot is more common and inexpensive, they produce different company: Pretec, D-Link, etc., their prices start at $ 60 Models with the form factor SD loves to indulge in the company Sandisk, and, most wireless cards from this manufacturer is equipped with an additional Flash memory (128/256 Mb). The benefit of this gain will certainly be, but for the money that you have to lay out (from 95 USD), is pleased to announce the highly questionable. Want to give only one piece of advice to users who have decided to acquire an external wireless adapter - advance, make sure that you have no compatibility problems. The fact that the adapters are designed for older operating systems, for example, Windows CE 3.0 can not quite work correctly on more recent versions of the same family of operating systems like Windows Mobile 2003. One of the easiest ways to "get out" - read the package list of compatible operatsionok. Only and then be ready to catch. Most sold today, Wi-Fi adapters were released two or three years ago, so no support for recent operating system they do not and can not be. Proceed as follows. First, select a card, and secondly, climb up on the Web and look for the latest drivers there. If these are found, then go ahead and buy the selected adapter, but if not, a wireless device to take is already dangerous. The probability of occurrence of problems can be as high ratio "50% to 50%." Therefore, I advise you to specify in advance when purchasing the possible return of the device, if find any compatibility problems.By the way, problems of compatibility can speak a variety of issues: from the banal work temporarily installed on the PDA software, and problems connecting to a wireless network where other handhelds with similar settings without problems, and ending with the absence or inaccessibility of "public some menu items, which, judging from the description, must be present in the Setup Utility Wi-Fi. Therefore the last council wants to address those handheld computer has not got - citizens, do not skimp, buy the handhelds with integrated Wi-Fi (IEEE 802.11) - and had no problems with compatibility you will never have!Equipment for wireless home network
Well, with iron PDA undecided, go to the hardware for wireless networks. So, to deploy a wireless network at home, we need special equipment, and, in the first place - an access point (aka Access Point or short - AR). Access Point - it's the same device that, and allow all your wireless computers to "see" each other as if they were connected by wires. Since then the fun begins. It would seem, the business-then - went to the store and bought one of the exposed Wi-Fi devaysov capable of performing the function of AR. However, once you do e-shopping, as you undoubtedly will visit questioned - range of prices to "centers of home Wi-Fi universe," ranging from 40 to 150 dollars. And this despite the fact that, judging by the specs, all the devices have almost identical features. What to choose?In order to make sense of this abundance of wireless, you should take note of several issues that manufacturers of access points like "fooling" the head of buyers. The first - backed standard. The list of standard Wi-Fi, existing at the moment, there are only two abbreviations:
- IEEE 802.11b - modification of the original Wi-Fi data rates up to 11 Mbps
- IEEE 802.11g - the latest version with a capacity of up to 54 Mbps and is fully compatible with IEEE 802.11b. Please note that all speeds are in Mbps, that is, in megabytes per second, for a transfer in megabytes (MB), we get about 1MB / s (11 Mbps) and 5 MB / s (54 Mbps). Both of these values into practice completely unattainable, at best, an access point can give half that speed. But back to the sellers.
In order to mislead consumers, more for advertising purposes, they invented a few more varieties of Wi-Fi:
- IEEE 802.11b + («Plus», etc.) with data rate 22Mbit / s or 27.5 Mbit / s
- IEEE 802.11g + («Turbo» and the like) with promises of speeds up to 108 or 125 Mbps. All these indicators are usually distinguished psevdoskorostnye very bright color and placed on the packaging equipment in plain view. However, in reality, such figures are irrelevant. Point IEEE 802.11b + no better and faster than IEEE 802.11b, and IEEE 802.11g standard devices totally inferior IEEE 802.11g +. So, to take this fact on the note, and not to overpay for such "innovations". Incidentally, I have not seen a PDA with integrated Wi-Fi standard IEEE 802.11g, as had business with the individual PDA adapters similar standard. Here, while reigning 802.11b, which means that the high speeds you can not see. However, they appear not very much and want. On the internet bandwidth will be enough, music online to listen to - too. And still advise you to refrain from buying wireless equipment that supports only IEEE 802.11b, because you never know what - whether you have a laptop at home or be got a second computer - excess capacity never hurts. The second point that should be considered when selecting AP: claimed range of wireless devices - 50 m, 70 m, 100 m and more - in terms of our apartments are completely unattainable. Moreover, 20-30 m from the access point - this distance is difficult to overcome even laptops with good integrated Wi-Fi adapter, and only for low-power handheld computers the ultimate dream and does limited to 10-15 m.The fact is that between the range of a wireless point and bandwidth Wi-Fi Network of a direct link. That is, with increasing distance from the access point very last drop. And the third fact that I want to make you happy, as a probe Wi-Fi equipment: more expensive AR does not always have a great range of work. A very decent piece of iron can be purchased fairly inexpensively. Of the two AP value of, say, 70 USD and $ 100 very often the first copy is the best choice. Well, what if you can, guided by the recommendations listed here, make the right choice? - Personally, I could not. The fact is that, looking at the AP and studying its performance on paper, it is absolutely impossible to predict how it will manifest itself in the case. Over the last year I had the opportunity to test more than 15 access points from different vendors. Of these, I can recommend to our readers just three wireless devaysa, in my opinion, the most respectable: TRENDnet TEW-410APBplus (114 USD), Asus WL-300g (78 cu) and D-Link DWL-2000AP + ( 64 USD). All points of support fast Wi-Fi (IEEE 802.11g), are stable, have greater range and are equipped with excellent Russian configuration instructions.
Which network will be constructed?
It will certainly go on the wireless network. Here are just depending on which method of accessing the Internet you choose, you get more or less of a problem with the settings and the choice of equipment. For example, in the simplest way of connecting using a wired version of the classic analog LAN, when the total output in the WEB is organized through a shared computer, connected to the internet. The second, more complicated way to connect to imply that the cable to your Internet service provider access point is connected directly. Next, we consider the features of both variants on the example of an access point Asus WL-300g.The first variant: a simple connection
Way to connect through a shared computer boasts two big advantages: easy connection and easy setup, while eliminating the need to equip your home PC optional wireless adapter. The only drawback of this method is not as critical: the Internet will only work when the main home computer.Given: a home PC, no matter how connected to the Internet (leased line, Stream, etc.).
It should be: to deploy Wi-Fi network.
Need: access point, and an additional Ethernet card for home PC (7 USD). Proceed. Install a second network card in your PC. We get a wireless AP and the network LAN cable coming in the kit, connect it to an additional network card. After that connects to AP Power Adapter cord, turn it into an outlet and click the button «ON» on the back of the access point. The front panel lights illuminate: «PWR» - power is applied, «Air» - wireless network is active and the indicator «Link» - wired connection to an Ethernet network is active. To switch to the access point, you must reconfigure your network card. To do this, click the right mouse button on the icon "Network Neighborhood" - "Properties". Before us is a list of available network connections. Right click on the second network card and select Properties. Before us there is a panel with network settings.
- When configuring any access point to remember several points:
- If you owe nothing to change the settings page, then the next time the configuration changes you may be asked to re-enter your username and password.
- After completing the settings on any of the pages please click on one of the buttons: Apply the changes and remember you can go to the following settings, Finish activates all changes that were made prior to clicking on this button, and overrides the access point. It is very important, do not forget that before the reboot (Finish) your changes will not take effect!
- After a reboot, and the entry into force settings AR necessarily change the IP address of the network card connected to Wi-Fi point to 192.168.1.1.
Option Two: the complex connection
Complicated connections, it is correct, require you more time, settings, and knowledge. But your wireless device will never depend on what is on your home PC or not. Method described below, is, incidentally, the only recommended by the manufacturer of wireless equipment. The fact that the connection point of access to the Internet directly, bypassing any whatsoever computers - the most common variant abroad. For us, simply translate instructions for installing and configuring hardware, and the localization for our Russian network "zamorochki" Nobody thought, but in vain ...Given: a home PC, no matter how connected to the Internet (leased line, Stream, etc.).
It is necessary to: expand the "correct" Wi-Fi network.
Need: access point and wireless adapter for PCs ($ 30). Characteristics of the national connection to the Internet we are: the basic way - a leased line. When the user in addition to the Network are available and other benefits, such as network resources across your home network provider, including computers of other users. These home networks are now very common and account for hundreds and even thousands of PCs. So that one of the most important tasks of any provider that provides services to a large number of users - the unique identity of most users in the network. In this case, the objectives of the ISP - two: avoid the theft of Internet traffic the most advanced users and does not allow you to share that most traffic with its neighbor. After all, our service providers is not the most democratic prices. Most often, in practice we are confronted with such an approach: the more traffic you pay, the cheaper it will be, but all of megabytes, which "will not eat" your PC to the settlement and the end of the month - will burn. In addition, service providers earn their connection. It does not matter that the second PC is in another room - if you please, pay for two. I believe that most of our readers on this bait are not kept, but simply use the output of the network via a PC connected to the Internet. This is the case we discussed above. Direct the same connection, which we will discuss today - more comfortably. However, as all home PCs, laptops and handheld computers to avoid all the traps, placed by service providers on the way to the general Internet? .. The unequivocal answer is not here. But remember that it can be done always.And the first things you will need to decide - this is the way that identifies you to the service provider network.
- To date, I met two basic approaches:
- Identification of the MAC address. In this case, when connecting to the internet is not required to enter either the name or password, or anything at all whatsoever. You identify the special address "sewn up" in your network card. This address is called a MAC address. This identification is based on the fact that the two network cards with the same MAC in nature should not exist. Interestingly, the identification of the MAC lead to a nasty problem - when you change a network card to another on the Internet you will not enter until until fail to report such a replacement provider.
- The identification of a user name and password. The essence of this method - in the absence of binding to a specific hardware. To log into the network need only enter a user name (login) and password (password). This is a more reliable option than in the first case, and, interestingly, most access points, this method of identification of support.
- Asus WL-300G supports and can simulate almost all possible ways by which you can outsmart the provider:
- Cable Modem or other connection type that gets IP automatically - a connection to a cable modem or any other type of connection where the IP address is allocated automatically. This case is suitable for those who identify by the MAC address and IP and other network settings are automatically allocated.
- ADSL connection that requires username and password (PPPoE) - a connection that requires only a username and password. All other settings will be set automatically. The second most common way to connect to the network.
- ADSL connection that requires username, password and IP address (PPTP) - a connection that requires the username and password, IP addresses and other network settings that you copied down on paper.
- ADSL or other connection type that uses static IP address - a connection that requires manual input of IP and all other settings (gateway, DNS).
- Telstra BigPond Cable Modem Service - method of access to the network for some of the foreign provider.
If something does not work ...
Is there a simple way of checking the work your Wi-Fi network or not. Click the left mouse button on the wireless connection icon in the System Tray your PC. In the box under "Activities" look at the number of messages sent and received packets. If the number of packets received is 0, then the network you have a problem.Open access to the files on your PC
Wireless network - is not only online but also hundreds of thousands of files that can be shared over the network, the music that you can remotely listen to, movies that can be remotely look. That all that was available for all computers in a home Wi-Fi network (PCs, laptops or handhelds), you must create a "working group" and open access to shared folders and files, that is "this user" resources.- Create a "working group" or connect to an existing PC or laptop can use the following manipulations:
- Right-click on the icon "My Computer" in the dropdown menu select - "Properties".
- Click the tab "Computer Name" and click on the Edit button.
- In the resulting window, type "Computer Name" in section "is a member, click -" working group "and enter your own name, it must be the same for all computers on the network.
- Reboot.
Connect PDA
If a conventional computer is very straightforward, then, handheld computers, users there is an order of problems.In this section, we connect to the two different handhelds based on Pocket PC: a recent top-selling HP iPAQ h2210 with an external adapter D-link DCF-660W and new season, Dell Axim X50v with built-in Wi-Fi standard, 802.11b. Moreover, thanks to our instructions, you will learn how to configure wireless internet access, access files on other PCs on a network, as well as exchange data between a PDA and desktop via Wi-Fi.Connecting HP iPAQ 2210 with Wi-Fi adapter D-Link DCF-660W
- I shall warn that depending on the adapter, the steps may vary. But in general, act as follows:
- Include PDAs and set in its expansion slot Wi-Fi adapter. Any warning messages issued by the OSes, not paying attention and we press "Cancel".
- Installed on the PC (which synchronizes your handheld device), drivers from the disk that came. The program Active Sync will give the message: "The next time you connect your mobile device on it will download your application installed.
- Synchronize PDAs c desktop computer. During this process the software from D-Link is installed on the handheld.
- Take out a PDA from cradle. Proceed to setting up Wi-Fi directly to your mobile device. Adapter Configuration Utility DFC-660W is located in the "Settings" - "System".
- By default, the adapter is configured to automatically obtain an IP address. Go to the Config tab and set the mark in the section ESSID - Auto Detect. It enables mobile devices to automatically detect the available networks.
- Here, on the tab Config, given the type of wireless network, set «Network Type: Infrastructure». This means that you are working on a wireless network access point mode Ad-hoc, implying a direct connection between two computers via Wi-Fi.
- Mode Power Saving Mode, leave on. This will allow Wi-Fi adapter to "fill up" at a time when the exchange there and save you battery power. Then click Apply.
- Go to the tab Security, select WEP Key Type and enter the WEP key. Click Apply.
- Go to the tab IP. Depending on what settings are used in your radio - automatic or manual - you either turn on DHCP (to automatically get all the settings from the access point), or select Static and enter all the network settings manually. And, if you're using DHCP, in the corresponding rows (IP Address, Subnet Mask, etc.) will be displayed assigned DCF-660W value. Click Apply.
Connecting a Dell Axim X50v
As it is funny, but to connect handheld previous generation 802.11b adapter with external was easier and faster than the Dell X50v. While here, by and large serious difficulties have arisen. Thus, we believe that we have a wireless network such as "easy connect" to automatically be delivered to all devices on network settings. The first thing we should do - at the end of a handheld computer click the inclusion of Wi-Fi adapter. Immediately pops up a message of the operating system - discovered a new network - Network Name. At the suggestion of OSes choose the type of connection - Work. At this time the CPC has not yet connected, as evidenced by the corresponding icon on the top panel.Choose the section Network to access network types to which you are trying to connect:
- Only Access Point means the only network with an access point
- Only computer-to-computer - a network between two computers. Better to leave the default settings - «All available», that is - all available online, and to establish a tick in the box Automatically connect to non-preferred networks, ie, "Automatically connect not only to preferred networks, and all in a row. Now in the top window click the stylus on behalf of our network («_Home_»).
Skusnov Alexander