Mounting rack for flight test of altimeter antenna

An altimeter antenna flight test mounting rack comprises a rack body, a fan-shaped adjusting rack and a mounting seat, the top of the rack body is provided with a connecting seat, and the bottom of the rack body is an upward inclined surface; the fan-shaped adjusting frame is arranged in the cavity of the frame body, the tip end of the fan-shaped adjusting frame is hinged to the left side of the top of the connecting base through a first horizontal hinge shaft, and a plurality of positioning grooves are formed in the arc end of the fan-shaped adjusting frame in the axial direction. A positioning rod capable of horizontally swinging and rotating is arranged on the right side of the top of the connecting seat, and the fan-shaped adjusting frame is positioned by clamping the positioning groove on the positioning rod; the mounting base is arranged below the frame body, the left side of the mounting base is hinged to the left side of the bottom of the frame body through a second horizontal hinge shaft, the right s