ATP-3-09-02 Field Artillery Survey Download
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Chapter 6 6-8 ATP 3-09.02 16 February 2016 not present. ERROR is also displayed when the calculated result is too large for the VALUE field or when a mathematical error is encountered. (An example would be when the operator attempts to divide by zero.) SURVEY FORMULAS 6-32. When the operator accesses the survey formula calculator display, seven survey formulas are available. They are radial error, accuracy ratio, mean value, traverse adjustment, mil relation, comparative accuracy, and law of sins. To process a calculation, the operator presses the Shift and Colon <:> keys. The calculated result is placed in the VALUE field. CALCULATOR FUNCTIONS 6-33. The calculator functions available on the survey calculator display are similar to those of a normal handheld calculator. When working from the calculator display, the operator may clear the current entry in the VALUE field by pressing the <X> key once. Pressing the <X> key twice consecutively will clear the accumulator. The following calculator functions are accessible from this display. Mathematical Operation 6-34. The mathematical operation performs addition, subtraction, multiplication, and division. When one of these operations is invoked, the entry displayed in the VALUE field is assimilated into the accumulator. The pending operation is then changed to the mathematical operation selected. Trigonometric 6-35. The SIN, COS, and TAN operations are performed when the operator presses the <S>, <C>, <T> keys respectively. The inverse (INV) operations are performed by pressing the <I> key, then the <S>, <C>, or <T> keys. The VALUE field is then changed to the result of the selected operation. The pending operation remains unchanged. Square Root 6-36. Pressing the <Q> key calculates the square root of the entry displayed in the VALUE field. The result is then displayed in the VALUE field. The pending operation is unchanged. Exponential Log 6-37. Pressing the <L> key calculates the exponential log of the number displayed in the VALUE field. The result is then displayed in this field. The pending operation is unchanged. Natural Log 6-38. Pressing the <N> key calculates the natural log of the number displayed in the VALUE field. The result is then displayed in this field. The pending operation is unchanged. PRINTING SURVEY FORMS 6-39. The FOS has the capability to print DA forms for calculations, conversions, and transformations. The print form capability is available from the SURVEY MODE MENU or from a survey calculation. The appropriate form header information—entered by the operator on the SURVEY FORM HEADER DATA display—is also included on the form. Selecting the PRINT FORMS function on the MODE MENU allows the operator to print a blank form of any calculation or transformation. The calculations are azimuth/ distance, traverse, traverse closure, triangulation, triangulation closure, resection, altitude method, hasty astronomic, star ID, Polaris tabular, grid convergence, trigonometric traverse, intersection, and artillery astronomic. The transformations are coordinate conversions, UTM datums, Gauss-Kruger (GK) datums, and user-defined datums.