FT-RF WR2300 Standard Gain Horn Antennas (HS Series) are ultra-large-scale reference calibration standards designed for low-frequency Sub-1GHz and VHF testing down to 320 MHz (320 MHz to 490 MHz). Featuring standardized 10, 15, or 20 dBi gain options, each unit combines a massive pyramidal horn with an integrated high-power coaxial adapter assembly.

Built from heavy-duty structural aluminum with reinforced ribbing and rigging fixtures, the WR2300 HS series guarantees high cross-polarization rejection (>30 dB) and smooth gain flatness, maintaining structural integrity for physical apertures exceeding 1.5 meters while delivering accurate gain calibration.