Diver down flag. A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. Two styles of flag are in use. Internationally, the code flag alfa/alpha, which is white and blue, is used to signal that the vessel has a diver down and other vessels should keep well clear at slow speed.
Familiarize yourself with some friendly network cables and take a closer look at common types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless.
Home Wires & Cables Coaxial Cables. The tried and true coaxial cable can transmit all kinds of signals-HDTV, digital video, composite video, component video, S-video, FM, and more. We have several options of coax to choose from for wherever you need to use them: schools, hospitals, security systems, or even just connecting your home cable TV. Indoor, outdoor, plenum-rated, dual or quad shielded, we've got the right cable for any application. We've even got flat coaxial cables from Taperwire for something unique and different. Once you've found the right cable, don't forget to check out our selection of coaxial connectors.