ATP-3-09-02 Field Artillery Survey Download
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Survey Computer Systems 16 February 2016 ATP 3-09.02 6-7 a message containing a field for a nonmember’s unit ID. (An example of a unit ID is the NAME field on the SPRT UNIT message: “_/1/A/1_/5__”. An example of a URN is “03100121.”) A message cannot be transmitted unless a URN is entered for your FOS, your member, and the nonmember whose unit ID will be in a field of the message. (The nonmember’s URN is entered on URN/UNIT NAME CORRELATION screen.) Before a message is transmitted, the FOS first looks in the MEMBER DATA file to check if there is an associated URN for the unit named in a unit ID field. If not, the FOS checks the URN file for an associated URN for the unit in a unit ID field. There are two exceptions to the requirement to enter a URN before transmitting. For a SPRT UNIT message, the FOS does not require a URN if the entry in the FRIENDLY field is NO. However, the NAME field must have an entry for the non-friendly unit’s ID. This unit ID is transmitted instead of the URN. (If the entry in the FRIENDLY field is YES, a URN must be entered for the member or nonmember whose unit ID is in the NAME field before the SPRT UNIT message can be transmitted.) The second exception is for a SPRT GEOM message describing a fire support coordination measure. The FOS transmits the unit ID entered in the fire support coordinator (FSCOORD) field instead of the URN. To enter a URN for a nonmember, display the INITIALIZATION menu and then the URN FILE SUMMARY screen. This display can list URN data for up to 300 nonmembers. The operator may page up or down through the pages of the summary to select an existing record for view or edit. The operator may purge the entire URN file. Selecting a record displays the URN/UNIT NAME CORRELATION screen. From this display, the operator may enter or delete the URN data for the nonmember. (See paragraph 1-19b and procedure 2-8 in TB 11-7021-228-10-1 for more information.) 6-28. Information in the MEMBER DATA file impacts how the FOS communicates with individual members. The required entries include the member address, device type, unit name, and the URN. Other fields on the MEMBER DATA displays are required based upon the operator's entry in the CONNECTION and PROTOCOL fields in the NET STATUS display. In addition, the entry in the DEVICE field determines what messages are legal for transmission and receipt from this member. Note. The MEMBER DATA display is also used to establish the member for relay. Member routing and the method of updating the FOS database by messages from the member are also established with the MEMBER DATA display. (Refer to procedure 2-6 in TB 11-7021-228-10-1 for more information.) SECTION III – FORWARD OBSERVER SYSTEM SURVEY FORWARD OBSERVER SYSTEM SURVEY 6-29. The FOS provides the capability to compute survey data for hasty survey techniques for planning and coordination. When in the FOS survey operational mode, the operator may perform survey point (SP) processing, survey calculations, and transformations or conversions. The operator may also perform math calculations from the survey calculator. The FOS also supports the printing of various survey forms used in processing data. Forms can be printed by the HTU using the HTU printer. When in the fire support or commander operational mode, the operator can only receive SPRT PNT messages and store the SPs or SCPs in the database. The points can then be reviewed, transmitted, printed, or deleted. The fire support officer or commander can also conduct a search of the points. SURVEY CALCULATOR 6-30. The FOS survey calculator is available by pressing the F9 key when the SURVEY MODE MENU or a survey calculation screen is displayed. The FOS survey calculator consists of two types of calculators. They are the survey calculator display and the survey formula calculator display. 6-31. The survey calculator display provides normal calculator functions. The survey formula calculator display provides specialized survey algorithms. The operator may switch between calculators by paging up or down. If the survey calculator was accessed from a survey calculation display, the operator may export the calculated value to the calculation display. An error message is generated when legal range limits are exceeded. For all calculator functions, ERROR is displayed in the VALUE field when required fields are