How to Choose a Wireless Modem

A wireless modem is a device used for accessing the Internet or a wireless network on a PC, laptop or PDA. A wireless modem provides the flexibility to use a wireless Internet connection on your PC anywhere in your home or office without worrying about cables. Wireless modems differ depending on their use and the device they are connected to. It is imperative to choose the right wireless modem for your PC, laptop or PDA. Here’s how:

Instructions

Difficulty: Moderately Easy

1. Know which type — external or internal — of wireless modem you need. Before buying either of these, ensure that your computer is compatible.
2. Determine whether you'll be using the wireless modem with a desktop, laptop or PDA. A cell phone can also act as a wireless modem and provide Internet access. However, not all cell phones have an in-built modem.
3. Consider the type of network to which your Internet service provider will have access. Three types of wireless networks that are widely used: CDMA (Code Division Multiple Access), CDPD (Cellular Digital Packet Data) and GPRS (General Packet Radio Service). You must purchase a wireless modem compatible with the wireless network your ISP uses. For instance, if your ISP offers CDMA wireless Internet service, you will have to choose a wireless modem that is CDMA compatible.
4. Consider the data transfer speed of your wireless network. For example, GPRS provides a speed of 56 kbps, while CDPD has the speed rate of 19.2 kbps and CDMA has the lowest speed rate of 14.4kbps. If you have a GPRS wireless Internet service, ensure that your wireless modem can support speeds up to 56 kbps.
5. Verify the coverage of your wireless network. For example, CDMA gives you considerably good domestic access, while GPRS offers the option of Internet access internationally. Choose a wireless modem that will give enough coverage. For instance, if you have a GPRS wireless Internet service that offers Internet access at international locations, you need a modem that has international coverage.
6. Assess the security features of the wireless modem. Most wireless networks are vulnerable to threats. Subsequently, look for wireless modems that provide added security features. Specifically look for 64-128-bit WEP (Wired Equivalent Privacy) and WPA (Wi-Fi Protected Access).
7. Assess the compatibility of your wireless modem to your Internet service provider. There are three types of wireless modem interfaces used widely: PCMCIA, USB and serial port. However, it is advisable to have a USB interface wireless modem because it gives you more flexibility than a PCMCIA or serial interface modem. Alternatively you can have a Bluetooth or 802.11b wireless interface, either of which can be used to connect the wireless modem to your computer. However, ensure that both the modem and the computer are equipped with these technologies.
8. Ensure that your wireless modem has all the necessary advanced features and accessories available. For example, USB and Ethernet cable connectivity, backward compatibility equipment, enhanced security, PC and Mac compatibility, depth, width, port connection and slot type.

Tips & Warnings

• If you don’t want to buy a wireless modem, you can lease it from your Internet service provider. Leasing a modem works better if you will not be needing a wireless modem for very long.

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