Hustler Standard Resonators are available for 80, 75, 60, 40, 30, 20, 17, 15, 12, and 10 meters. Hustler standard resonators can handle 400 watts PEP. Resonator whip adjustment allows for the fine tuning of these efficient mono-band mobile antennas to the lowest SWR. Using the included Allen key, whip position is firmly set in the resonator whip tube with two 3/32 Allen set screws. These resonators complement Hustler mounts, mobile masts, and other accessories to custom-build your mobile antenna.