Choosing a communication method for your Electronic Message Center is very crucial when it comes to uploading content to your sign. At Green Sign Company our American Brand EMCs (Electronic Message Center) Broadband Wireless and DSL provide a high-speed internet connection to communicate with the sign. With Broadband Wireless it makes it easier to network and control several signs, in multiple locations, from a single computer. Our American Brand Company offers a broadband wireless data plan that provides dependable service across Verizon’s 3G network coverage area. It is an inexpensive way for you to get reliable broadband wireless service for signs up to 80,000 pixels.