The WI-430-UDR-20 is an industrial-grade, premium high-gain WR-430 Waveguide Horn Antenna engineered by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for continuous laboratory testing and precision microwave applications within the 1.72 GHz to 2.60 GHz spectrum. Optimized for L/S-band deployment, this high-performance antenna delivers an intensified, stable 20 dBi nominal gain profile with sharp boresight directivity, achieving narrower beamwidth envelopes (20° H-plane / 18° E-plane). It features a Direct Waveguide Input equipped with a standardized UDR Style interface flange, effectively mitigating insertion transition loss parameters to secure excellent return loss performance with a maximum V.S.W.R threshold of 1.3 : 1. Precision CNC machined from high-grade structural aluminum alloy in Taiwan, this robust 6.8 kg assembly handles continuous high-power transmission loads up to 1000 Watts (CW) with outstanding thermal dissipation. It stands as the definitive choice for long-range antenna calibration grids, wide-area radar simulations, high-field EMI/EMC compliance testing chambers, and advanced tracking sub-systems requiring uncompromised electrical parameters.