Suppling all kinds of special waveguide components. 1. waveguide sampler: 2. waveguide pressure window. Suppling all kinds of special waveguide components.1. waveguide sampler: Frequancy: full-waveguide frequency range Coupling: standard 30, 40,50,60dB or according to customer's requirement. Connector: SMA, N, 2.92mm, 2.4mm.