The Diamond X510NA was designed for strength and performance and is pre-tuned to achieve maximum gain in both the 2m and 70cm amateur bands. (2m: 3 x 5/8 and 70cm: 8 x 5/8). It has a 3 section fiberglass radome with overlapping outer shells for added strength. It comes with stainless steel mounting hardware and radials and strong-waterproof joint couplings.
We also carry the Diamond X510M which is the same antenna, but with an UHF (SO239) connector instead of an N connector.