https://www.homedepot.com/p/20-000-Watt-Helical-Coil-CB-10-m-Antenna-K40BCMAX/314903249
20,000-Watt Helical Coil CB/10 m Antenna K40BCMAX - The Home Depot
Enhance your over-the-road communication system by selecting this K Antennas Accessories Helical Coil CB Antenna.