Slow-scan television (SSTV) is a picture transmission method used to transmit and receive static pictures via radio in monochrome or color. A technical term for SSTV is narrowband television and uses less than 3 kHz of bandwith. SSTV is a much slower method of still picture transmission, usually lasting from about eight seconds to a couple of minutes, but it can be used on shortwave and transmitted around the world when propagation is good.