AN/MSQ-46

The AN/MSQ-46 Bomb Scoring Radar was an air search automatic tracking radar which operated in the 8500 to 9600 MHz frequency range. With a range of 200 nautical miles, the AN/MSQ-46 was fitted out with an 8 foot diameter fresnel lens rather than a parabolic dish.  The lens provided improved low-level tracking of aircraft. Provided with an increased range capability, the AN/MSQ-46 was developed from the MSQ-39 system, and since it used a lens instead of a parabolic dish, the MSQ-46 was not affected by ground clutter, meaning returns caused by abnormalities in the earth's terrain or trees, etc.