CHROME 450-470MHZ UHF 200 WATT 5DB GAIN NO-GROUND PLANE ANTENNA WITH SPRING. ANTENNA IS APPROXIMATELY 32-3/4" TALL.
 
Specifically designed for installations that lack a suitable ground plane
Overcomes challenging installations – No ground plane required
Rugged construction – Sleek, sturdy, sealed phasing coil design; optional heavy-duty shock spring
Adaptable – Mates with all 1-1/8”-18 thread mounts, including 3/4” mounts