FT-RF WR975 Standard Gain Horn Antennas (HS Series) provide large-scale, calibrated reference gain standards 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, defense radar evaluation, and low-frequency EMC anechoic test chambers.

Constructed from structural aluminum alloys with eye-bolt mounting attachments, the WR975 HS series guarantees high cross-polarization rejection (>30 dB) and smooth gain flatness, combining physical stability with ease of positioning on heavy tripods or rotators.