The AE470x series is an adaptable UHF CB antenna system with a range of spring bases and user-interchangeable whips.This allows you to quickly and easily switch between whips to suit the operating conditions and application.The AE470x series includes a range of shorter length whips with lower gain for mountainous terrain or built-up areas, and longer length whips with higher gain for travelling on open roads or flat terrain.The AE4703 is a popular choice for 4WDs and touring vehicles.Also available in Black (AE4703B).