ELECTROMAGNETIC PATH LOSS VERSUS RANGE (LOSS)

LEARNING OBJECTIVES: Interpret LOSS display parameters. Recognize optimum locations and flight paths. Identify limitations and assumptions. Explain functional description.

The LOSS program provides a display of one-way path loss vs. range or path loss for ESM intercept vs. range. The ESM systems, radar, communication, or sonobuoys are prepared for LOSS by the EMFILE maintenance program. The EM systems transmitter heights (if airborne) and the target or receiver heights are entered during the program run. The RDF is presented for refractive environment selection each time LOSS is run.

Figure 7-2.-Example output of the BGV display.

The LOSS program is used to assess the performance of a user-specified EM system under given atmospheric conditions. Path loss vs. range is displayed with the systems path-loss thresholds (calculated from the user-specified freespace ranges if not entered), allowing the determination of maximum detection, communication, or intercept range.

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