Seco Radio Antenna Bracket The Seco 2133-03 Radio Antenna Bracket is a versatile field mounting accessory for securing radio antennas to survey poles , designed for fast setup and reliable performance in communication-enabled workflows. Its open clamp design allows quick attachment and removal in active jobsite environments. This bracket connects to 1" to 1.25" (25.4 to 31.8 mm) OD poles and features a brass male 5/8" x 11 captive stud that can be removed for direct antenna mounting. It also includes a non-slip Velcro® cable strap to help manage and secure radio cables during use. The bracket is compatible with the Radio Antenna Adapter 2133-00 , which allows adaptation of 1-1/8" x 18 radio antennas to a 5/8" x 11 threaded tip (sold separately). Key Features • Open clamp design for quick pole attachment • Compatible with 1"–1.25" (25.4–31.8 mm) OD poles • Removable brass 5/8" x 11 captive stud for direct antenna mounting • Includes Velcro® cable strap for cable management • Compatible with Radio Antenna Adapter 2133-00 (sold separately) • Durable field-ready construction