2 Way CB/HAM Antenna Coax Switch 100W 1-30MHz Optional SO239/BNC connector Description: With reverse protection, unused antenna ports are automatically protected to reduce risks. The switch direction corresponds to the selected antenna, and one machine corresponds to two antennas. Bi-directional coaxial antenna switch version SO239. 1 input and 2 output rotary switch with OFF and earth protection for use with the SO-239 connector. Equipped with reverse protection, unused antenna ports are automatically protected to reduce the risk of burning out the machine The direction of the switch is the one corresponding to the selected antenna, suitable for modes where one machine corresponds to two antennas, or can be connected in reverse. Bi-directional coaxial antenna switch BNC version. 1 input and 2 output rotary switch with OFF and earth protection for use with BNC connectors. Equipped with reverse protection, unused antenna ports are automatically protected to minimise the risk of burning out the machine. The direction of the switch is the one corresponding to the selected antenna, suitable for modes where one machine corresponds to two antennas, which can also be connected in reverse. Notes: 1.Please check the required interface type or contact us before purchase. Make sure the product is suitable! 2.The package does not include installation instructions, thank you! Package Includes: 1pcs*Antenna Coax Switch