For ham and commercial handie-talkies as well as hand-held scanners, the Grove rugged, chrome, telescoping whip features a swivel BNC base, allowing the whip to be used straight or turned to a right angle for those special applications.
Adjustable length from 6" to 29" allows frequency optimization. Quarter-wave resonance at VHF hi band, 3 dB gain or more over rubber duckies at UHF.