FT-RF WR770 Standard Gain Horn Antennas (HS Series) integrate a heavy-duty pyramidal horn with a low-loss waveguide-to-coaxial adapter across Sub-1GHz / UHF (750 MHz to 1.12 GHz). Featuring standardized 10, 15, or 20 dBi gain options, they provide accurate reference calibration standards for Sub-1GHz IoT testing, UHF TV broadcast calibration, and EMC radiated immunity testing.

Crafted from heavy-duty structural aluminum alloys with internal support ribbing, the WR770 HS series guarantees high cross-polarization rejection (>30 dB) and smooth gain flatness, maintaining precise physical geometry for large-scale low-frequency measurements.