Reply from the manufacturer: Thank you for your review, please note we get this comment quite frequently. To resolve your issue please make sure you firmly pinch and twist at the base of the antenna to firmly engage the antenna to the radios BNC connector. You should feel a positive snap when it is properly engaged. If you do not pinch firmly, the antenna will spin freely on the base and will not engage. If you require more information please do not hesitate to contact our product support department at 800-767-2450