Vendor Products and Options
Today, laptop wireless cards and antennas are generally found inside of the computer and have good reception because of advances in technology. Given the scenario above, users may want to find external usb adapters and / or usb antennas that are high gain / powered.
RadioLabs, a manufacturer of wireless USB antennas for laptops, is one of the leading suppliers of wireless adapters for laptops. With their Wave Magnum, the USB adapter for laptops (or even desktops) have 500mw of power (½ watt of power!).
Ubiquiti Networks produces a laptop card that can reach out several miles or up to 500' indoors. Their SR71 CardBus adapter is one of the most powerful in the industry.
With these antennas, the higher the db gain, the better the reception. Moving outside of the home, these antennas help users when traveling or for those who have a workshop or garage away from their wireless source.
Many users opt for making a wireless antenna (See BrightHub article) to extend the range of their wireless network. This type of Do It Yourself Project is not for everyone and is not truly portable when going on personal or business trips.