3G wireless service, also known as 3G fixed wireless, is an additional source of bandwidth that is available to both businesses and residences. This service is available to about 95 percent of the locations within the US.With 3G wireless, the provider supplies two powerful antennas that are each about the same size as a “Pringles” can. These antennas are usually placed inside the office of the customer. Both antennas connect to a modem that provides an Ethernet handoff to the customer computer, or network router. The modem locates and locks-onto the strongest wireless bandwidth signal of the 4 largest cell companies in the country. 3G wireless bandwidth averages speeds of about 1 Mbps for download by 512k for upload.