41 to 2.4 ghz frequency range, swr less than 1.05 at 1.5 to 12.4 ghz, swr less than 1.10 at 1.0 to 1.5 ghz, 1 w average power, 30.000 in. Lg, 2 type n connectors male and female, incl carrying case, 4 center conductors, load is varied by movable plunger