Wireless modem basics

DSL and dial-up modems use telephone lines to connect you to the Internet; cable modems use cable TV lines for connectivity; and wireless modems use cellular, satellite or WiFi protocols to connect to a wireless local area network (LAN), which then connects to the Internet. Prices on wireless modems go from $50 to over $2,000.

I recommend: You can find wireless modems in every price range at BizRate.com. Go to Business.com for suppliers of all types of computer modems, including models from major brands, such as Motorola, Linksys, Cisco, D-link, Netgear and Unitech.

Wireless cable modems

If your Internet service provider is your cable TV company, you’ll need a cable modem. Wireless cable modems allow you to create a portable workstation so you can surf the Internet and send emails from anywhere within range of the wireless cable modem. Good news: connection speeds with a wireless cable modem are comparable to wired modems.

I recommend: Search for cable modem vendors at Business.com.

DSL wireless modems

If you are hooked up to the Internet through a DSL line, you’ll need the appropriate wireless modem to serve as a gateway to your laptop, printer and other devices.

I recommend: Check out wireless modems for DSL at Nextag.com. Need help determining whether cable or DSL is best for you? Check out BroadbandInfo.com.

A newbie in the wireless world—WiFi modems

There is a new kind of wireless modem out there, but for now only urbanites have the option to use it. Many municipalities around the country are offering Wi-Fi service citywide. However, to pick up the signal within your home office or business, you may need a signal booster wireless modem, which typically costs more than $100. This brings the Wi-Fi signal indoors and boosts it to communicate with your devices, without cable or DSL service.

I recommend: Cities with MetroFi Internet service include Portland, Oregon; Aurora, Illinois; and six California cities. Earthlink Wi-Fi-enabled cities include Philadelphia, Anaheim and New Orleans. Check out the wireless modem booster you’ll need for this service at MobilePlanet.com.

Wireless cellular modems

If your business requires on-the-road access to the Internet, you’ll want to equip your fleet with cellular and GPS equipped modems. They access the Internet via cellular signals or by GPS.

I recommend: Sierra Wireless provides cellular mobile modems for in-vehicle applications.

Wireless modem/router combinations

The latest in modem technology is to combine a wireless router and a modem into one seamless portal. Modem/routers include capabilities of connecting other network devices, printers and works as a security firewall.

I recommend: D-Link offers a modem/router designed for small offices, that lets you quickly and easily connect to high-speed broadband Internet and share your ADSL line.