Solid Signal - Signal Solutions including HDTV Antennas, DIRECTV and DISH Network satellite equipmen, Solid Signal, connecting you to your signal solutions. Looking to upgrade your home entertainment system? Solid Signal has everything you need to get the job done! We stock DIRECTV and Dish Network dishes and receivers, HDMI cables, wireless cellphone signal boosters, home security systems, satellite installation tools including multiswitches and cables and other satellite tv products!.