144/440 8.3/11.7 330/250 UHF 17.2 90 X500HNA 144/440 8.3/11.7 200 N 17.8 90+ X700HNA ... A144S5 Ruggedized Base/Repeater Antenna X500HNA X500HNA Diamond Antennas best base ... for strength and performance, the X500HNA is pretuned to achieve maximum gain in ...