Model 741DP from Analog Modules Inc. is a quadrant-tracking detector/processor for use in missile and platform applications. The N-type silicon detectors are temperature-controlled and provide optimum performance at 1.06 µm. The assembly comprises a hermetically sealed detector with front-end electronics mounted on a surface-mount technology board. Independent five-channel noise detectors set low thresholds to achieve long acquisition ranges for various background light and spot positions. The processor provides laser-detect logic pulses for decoding and digitization. Linear proportional signals are provided over a 90-dBV dynamic range.