The SW (Short Wave) frequency range is the band in which the autoantenna receives short wave radio signals. This range is typically between 1.6 and 30 MHz and is used for international broadcasting and long distance communication. The short waves can travel long distances due to reflection from the ionosphere, making them ideal for listening to foreign radio stations. Autoantennas with a SW frequency range are suitable for users who want to receive signals from different parts of the world.