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Military

*CHAPTER 10

FORWARD ENTRY DEVICE METEOROLOGICAL/SURVEY

The FED MSR is a digital communications device that allows the artillery surveyor to process command and control information and to perform the full range of calculations that are currently performed by the BUCS (Survey REV 1 and DDCT modules). The FED MSR also gives the surveyor limited forward observer capabilities and graphics that will allow the user to display tactical symbols and other graphical information.

Section I

OVERVIEW

When properly prepared for operation, the FED MSR is configured to allow surveyors to choose the survey option desired. The surveyor can perform limited forward observer functions and can manipulate and display maneuver and fire support information.

10-1. SYSTEM CONFIGURATION

a. The basic device for the FED MSR is the simplified hand-held terminal unit (SHTU). (See Figure 10-1.) The quantity authorized to survey elements is the same as the current authorization for the BUCS (Table 12-1).

b. The FED MSR is issued with a printer (printer, automatic data processing). Cables are included for connection to a communications device, printer, and external power source.

c. The FED MSR is powered with an internal battery (BA 5800/U lithium) or external 24 v DC (vehicle) power source. The average life of the BA 5800/U battery is 18 hours.

d. The FED MSR has a continuous memory capability. This allows for the retention of data base information while the device is turned off.

e. The screen of the SHTU is a dot matrix liquid crystal display. It is capable of displaying 25 lines of information. The device has a screen saver that blanks the screen after 30 seconds of nonuse.

f. The device has an audible alarm. It alerts the operator when a message has been received or an error has been made.

g. The alphanumeric keyboard is arranged like a standard computer keyboard with additional special function keys. TM 11-7025-300-10, Chapter 1, explains use of the function keys.

Note. See TM 11-7025-300-10 for warning and safety statements concerning use of the BA 5800/U lithium battery. See TM 11-7025-311-12&P for caution and warning statements concerning connection of the printer.

h. The SHTU will accept forward observer command and control (FOCC) application software and MSR software. The memory capabilities of the SHTU does not allow for loading more than one application. THE MSR is the software the surveyor should use. If FOCC software is loaded, it will need to be erased and MSR software installed. See TM 11-7025-300-10, Chapter 2, for detailed upload-download procedures.

Note. If upload-download procedures fail using MSR.TLF as the file name, rename the ADA_HEAP file (see Figure 10-2). Then retry according to the upload download procedures in the TM. The renaming of this file will be necessary if the FED MSR was turned off before exiting the software. To avoid the renaming procedure, always exit to OPNL SERVICES before turning off the FED MSR.

10-2. PREPARATION FOR OPERATION

Before placing the FED MSR into operation as a communications device, system operational parameters need to be established. These parameters are entered through the FED STATUS selection (option J) from the MODE MENU. The FED STATUS selection provides the operator with the means to enter information concerning the following:

  • Local address and observer number of your device.

  • Type of communications device being used.

  • Current date and time.

  • Current FED location.

  • Map modification data.

  • Auto target and survey point numbering.

a. Local address and observer number information can be found in the current signal operation instructions (SOI). To ensure communications with other elements, member data (address, observer number, and device type) must be entered. Member data can be entered by selecting MEMBER DATA (option F) from the MODE MENU. See TM 11-7025-300-10, Chapter 2, for detailed information on entering member data. Local SOPs will dictate the elements that will be entered into the member data table.

b. The FED MSR allows the operator to enter authentication data required for automatic authentication of messages. The authentication table provides for the entry of four groups of authentication codes. Each authentication group can be assigned a specific destination address. More than one authentication group can be assigned to one destination address. Authentication codes are contained in current SOIs. A two-letter key code is used to verify the use of the authentication tables. The two-letter key code has to be entered and verified each time a message is sent by using the authentication tables. The authentication tables can be used in the secure or nonsecure mode. Local SOPs will dictate the use of the authentication tables.

10-3. SURVEY OPTIONS

The SURVEY OPTIONS MENU of the FED MSR gives the user access to the Survey Control Point File and survey order functions of the device.

a. The MSR will maintain three survey orders (Received Survey Order, Working Survey Order, and Issued Survey Order) in memory at any time. Survey orders can be maintained in either full five-paragraph form or the abbreviated two-paragraph form (fragmentary order [FRAGO]). The issued and received survey orders can be updated and/or edited by copying them to the Working Copy file.

b. The Survey Control Point File maintains information on as many as 360 survey positions. The amount of SCP information maintained in the data base depends on the echelon at which the MSR was initialized. The file can be used to store and transmit firing element information and SCP data. The Survey Control Point File does not differentiate between an SCP and a surveyed position. The Survey Control Point File can be searched by using parameters identified by the operator and SCP information transmitted to other members. Members can also search the Survey Control Point File of other members by transmitting search criteria. If survey position information is entered into the file by using geographic coordinates (latitude and longitude), the device will automatically convert the geographic coordinates to UTM coordinates and enter the data in the easting and northing fields of the survey point message.

10-4. FORWARD OBSERVER OPERATIONS

Forward observer messages are found under the MESSAGE TYPE (option I) selection from the MAIN MENU. Forward observer messages can also be accessed from the LOCAL MISSION FILE. These messages permit the operator to direct engagement of enemy targets by indirect fire and to transmit and/or receive battlefield information messages. Detailed information on the use and capabilities of these messages can be found in TM 11-7025-300-10, Chapter 3.

10-5. GRAPHICS CAPABILITIES

The graphics of the FED MSR allow the operator to manipulate and display maneuver and fire support information stored in the data base. The user identifies the map area that will be displayed by entering minimum and maximum easting and northing values in the MAP MODIFICATION DATA under the FED STATUS selection from the MODE MENU. Information entered into the Unit List, Equipment List, Geometry List, and Point/Installation List files will be displayed on the graphics map. Information listed in the Member Data File and Survey Control Point File will also appear on the graphics map. The graphics map uses icons to display and identify information on the graphics map. The icons represent military symbols that can be found in FM 101-5-1. The graphics map displays information based on the map level that is present on the graphics map. There are four different map levels available in the FED MSR. Each map level displays a different set of icons. Some icons will be visible at more than one map level. The icons that appear at each of the map levels are listed in TM 11-7025-300-10, Appendix C. The graphics map will display an area ranging from 1,000 meters to 99,999 meters, with a default setting of 8,000 meters. TM 11-7025-300-10 provides detailed information on the use of the graphics map.

Section II

SURVEY CALCULATIONS WITH THE FED MSR

The survey calculations function of the FED MSR allows the operator to perform various types of survey calculations without performing any setup procedures as described in Section I. The type of survey calculation desired is selected from the SURVEY CALCULATIONS MENU (Figure 10-3). The FED MSR will maintain up to three completed calculations in its data base for each type of calculation. Completed calculations are automatically saved in the data base. Records remain in the data base until the operator either deletes or writes over the record. The device will allow the operator to establish a new calculations record or to view and/or edit an existing one.

10-6. SURVEY CALCULATIONS

a. FED MSR Forms. The FED MSR calculation forms were designed to be similar to the BUCS forms to simplify their use. There are five major parts to the forms:

  • Administrative data.

  • Instructions.

  • Required fields.

  • Data record.

  • Remarks.

Some of the forms have additional information on the back. The use of the different parts of the FED MSR forms and the procedures for computing them are discussed below. (Detailed instructions for the use of the FED MSR are in TM 11-7025-300-10.)

(1) Administrative data. At the top of the form, right below the form title, there are six blocks. These blocks are used to record administrative data. When conducting survey operations, all required information must be entered. This will ensure that proper records of survey operations can be maintained.

(2) Instructions. Below the administrative data blocks are the instructions for the use of the form, to include the following:

  • How to call up the required computation.

  • How to determine what field data are required.

  • How to display the window of legal entries.

  • How to calculate the data.

(3) Required fields. On the left side of the form, under the instructions, are the required fields blocks. These blocks show which fields appear in the computation. This part of the form also shows where to record computed data.

(4) Data record. To the right of the required fields blocks are the data record blocks. These blocks show where to enter field data (blocks marked with a filled-in arrow). They are used for recording station names and computed data.

(5) Remarks. This block is located under the required fields blocks and is provided to record any remarks that are pertinent to the survey being computed. There are no particular remarks that are required; however, any information that could affect the survey should be included.

b. Selecting a Calculation. Once a calculation has been called up from the SURVEY CALCULATION MENU by pressing the key that corresponds to the desired calculation, the summary list for that particular calculation will appear.

(1) To select an empty file (one without a name or main points), whether it be A, B, or C, select the empty file by pressing the corresponding letter. For example, if A and B are full, then select C.

(2) To delete a file if they are all full, the operator can select one of the full files by pressing the corresponding letter. When the calculation screen appears, delete only the one file by pressing the X key.

(3) To delete the entire list, press the X key at the Summary List screen. All files for that particular calculation will be permanently deleted.

c. Entering Data. Once a calculation has been selected and the applicable DA form has been filled in, the next steps are to enter field data and record the computed data. When the calculation is initially called up, the first required field will be highlighted in black.

(1) When entering data into any of the calculation programs, all fields that are followed by a question mark (?) must have an entry. If any question marks remain when the user tries to perform the calculation, the program will error and return to the step containing the question mark.

(2) The FED MSR will not accept data into the computation unless the window of legal entries is displayed on the screen. The ENTER key acts as a toggle for displaying the window of legal entries, which shows the range of values that can be entered in any field. TM 11-7025-300-10, Section 5, and Appendix B list the legal values for all required entries. The window must be displayed before trying to enter or edit data in a specific field.

(3) Entry of data is in a fixed format that requires the operator to complete all available characters for all fields. This requirement uses preceding and ending zeros for values that do not include the full range of characters provided. for example, when entering northing data, there are eight required digits to the left of the decimal; therefore, you must enter a zero (unless near the equator) before entering the normal seven-digit northing. When naming stations, you would have to fill in the remaining ?s with spaces if the name is not as long as the required field.

(4) When a field is completely filled in, the next field will automatically be highlighted and the window will still be displayed. You can also toggle between fields by using the up and down arrows to check your data or to edit data already entered. The ENTER key must be pressed before the C key for calculating is pressed so that the window of legal entries is removed. If this is not done, the FED MSR will not respond.

d. Editing Calculations. When the need to edit a calculation arises (for example, rerunning a survey or converting to common control), you can edit the calculation while still in the calculation or by recalling it.

(1) To edit the calculation from the solution screen, press the S key to show input data. The first screen of entered data will appear. To move through the calculation within the pages, use the PG UP or PG DN keys and the up and down arrow keys.

(2) To edit the data, do the following in order of listing:

  • Move the cursor until the required field is highlighted.

  • Press the ENTER key to display the window of legal entries.

  • Replace previously entered data with the new data.

When all required fields have been edited, press the C key to calculate. The display will move to the next page. Continue to edit data until you reach the solution screen.

(3) To edit a calculation after you have left it, you must recall the calculation from the Summary List. Once you recall the calculation, the solution screen will appear. You then follow the same procedures as when you were originally in the calculation.

e. Special Operations. When computing with the FED MSR, there are several options available when in a calculation. At the bottom of the screen, there is a list of options with the key to press to activate the option.

(1) One such option is ACCESS SCP FILE (A key). This function is used when the SCP file contains the data for the known control being used in a particular calculation. For example, when computing a resection and one or more of the known points (left, center, right) are in the SCP files, you can retrieve the data and input them into your calculation by pressing the A key. Once in the Survey Control Point File, you can select from the list or perform a search to find known points to use for your calculation.

(2) Another option when computing a survey is the PREV return function. When you press the PREV key from within a calculation, you will return to the Summary List. When you press the PREV key from the Summary List, you will return to the SURVEY CALCULATIONS MENU and you can restart operations.

(3) As previously mentioned, you can use the X delete function to delete the calculation if you need a blank record. However, the data will be lost.

10-7. AZIMUTH AND DISTANCE CALCULATION FILE

a. The Azimuth and Distance Calculation File is designed to compute the grid azimuth and distance between two stations. The user must input the known UTM coordinates of both stations, or select points from the Survey Control Point File to be imported into the Azimuth and Distance Calculation File. (See TM 11-7025-300-10, page 5-37, for step-by-step procedures.)

b. DA Form 7356-R (Computation of Azimuth and Distance From Coordinates (FED MSR)) (Figure 10-4) is used to record the data determined. The instructions for computing the data for this program are shown on the front of the form.

10-8. TRAVERSE CALCULATION FILE

a. The Traverse Calculation File is designed to compute the grid azimuth, coordinates, and height of up to 40 main scheme traverse stations and 10 offset points from the known data of the starting station and the field data of the traverse. The program allows for entry of either slope or horizontal distance. If slope distance is entered, the program does a conversion to horizontal distance. The program allows the user to access the Survey Control Point File to import information for the starting point. The program computes closing data to include the following:

  • Azimuth correction.

  • Height correction.

  • Total traverse length.

  • Radial error.

  • Accuracy ratio.

Traverse adjustment is computed by pressing the T key at the CLOSURE SOLUTION screen. A list of traverse points can be displayed by pressing the P key from the CLOSURE SOLUTION screen of a completed traverse. The list of traverse points displays adjusted data if the survey was adjusted. If the survey was not adjusted, unadjusted data are displayed. (See TM 11-7025-300-10, page 5-40, for step-by-step procedures.)

b. DA Form 7357-R (Computation of Coordinates and Height From Azimuth, Distance, and Vertical Angle (FED MSR)) (Figure 10-5) is used to record the data determined. The instructions for computing the data for this program are shown on the front of the form. Closure and adjustment data are recorded on the reverse of DA Form 7357-R (Figure 10-6).

10-9. TRIANGULATION CALCULATION FILE

a. The Triangulation Calculation File computes coordinates, height, azimuth, and distance by triangulation. The program will compute a single triangle or a chain up to 40 triangles. The program allows access to the Survey Control Point File for importing data for the starting point. When entering the name of the starting station, the user identifies the starting point as B or C. This step is where the program determines the side to be computed for the first triangle of a chain. For the first triangle, the user must also identify the side to be computed for the next triangle of the chain (prompt NEXT TRI BASE BA/CA). As the computation continues, this step is repeated (enter the side to be computed for next triangle). When entering data for the last triangle in a chain or a single triangle, enter either BA or CA (the side to be computed for the last triangle was entered in the previous triangle) at the prompt NEXT TRI BASE BA/CA. The program will not compute a triangle without an entry in this field. (See TM 11-7025-300-10, page 5-45, for step-by-step procedures.)

b. DA Form 7358-R (Computation of Plane Triangle Coordinates and Height From One Side, Three Angles, and Vertical Angle (FED MSR)) (Figures 10-7 and 10-8) is used to record the data determined. The instructions for computing the data for this program are shown on the front of the form. Closure and adjustment data are recorded on the reverse of DA Form 7358-R (Figure 10-9).

10-10. RESECTION CALCULATION FILE

a. The Resection Calculation File computes the coordinates and height of one or more stations from the UTM coordinates of three known stations and the azimuth from the occupied station to the center station. The program allows the user access to the Survey Control Point File for importing data of the three known points. (See TM 11-7025-300-10, page 5-51, for step-by-step procedures.)

b. DA Form 7359-R (Computation of Coordinates and Height by Three-Point Resection (FED MSR)) (Figure 10-10) is used to record the data determined. The instructions for computing the data for this program are shown on the front of the form.

10-11. COMPUTATION OF ASTRONOMIC AZIMUTH BY ALTITUDE METHOD (SUN AND STAR)

a. Altitude Method (Sun) Calculation File. This program computes a grid azimuth to an azimuth mark from three sets of observations of the sun. The program provides the user with a mean astronomic and grid azimuth. The program compares each of the azimuths to the mean to determine if the observation meets required accuracies. If one of the sets does not meet the rejection criteria, an audible alarm sounds and the status line will display: OBSERVATION SET _ REJECTED. If two of the sets fail to meet the rejection criteria, the audible alarm will sound and the status line will display: TWO OR MORE OBSERVATION SETS REJECTED. RERUN OBSERVATIONS. The audible alarm can be silenced and the status line cleared by pressing the NEXT (F8) key. The user can access the Survey Control Point File to import location data for the observing station only if the latitude and longitude are entered in the Survey Control Point File. If the geographic location is not entered in the Survey Control Point File, the program will display NO APPLICABLE SURVEY POINTS AVAILABLE FOR ACCESS. (See TM 11-7025-300-10, page5-55, for step-by-step procedures.)

Note. The last prompt in the initiation screen is DAYLT SAVING TIME (Y/N). It does not matter what is entered at the DAYLT SAVING TIME (Y/N) prompt; the calculation does not use this information. The user must enter the time zone correction to include daylight savings time at the TIME ZONE CORRECTION prompt for the calculation to correctly compute the azimuth.

b. Altitude Method (Star) Calculation File. This program computes a grid azimuth to an azimuth mark from three sets of observations of a selected star. The user must enter the number of the star being used at the STAR NO/NAME prompt. (A list of star names and numbers are located on the back of the form.) The program determines accuracy and mean azimuth in the same manner as the Altitude Method (Sun) Calculation File program. Access to the Survey Control Point File and rejected data are controlled in the same manner as the Altitude Method (Sun) Calculation File. (See TM 11-7025-300-10, page 5-58, for step-by-step procedures.)

Notes.
1. Altitude Method (Sun and Star) Calculation Files computations will be recorded on DA Form 7360-R (Figures 10-11 and 10-12). (A list of stars is on the back of the form [Figure 10-13]).

2. Both Altitude Method Calculation Files require the entry of OBS DATE, OBS TIME, DAYLT SAVINGS TIME, and TIME ZONE CORRECTION. This information is used to determine if the sun or selected star is in position to meet the prime vertical requirements (Chapter 7, paragraph 7-11e). If the prime vertical requirements are not met, the status line will display SUN/STAR NOT WITHIN 530 MILS OF PRIME VERTICAL. The status line will also display a warning (VERTICAL ANGLE TO SUN/STAR NOT BETWEEN 175 AND 800 MILS) when the vertical angle does not fall between 175 and 800 mils. The programs will perform the calculation and provide a solution even if either or both of these conditions exist.

10-12. HASTY ASTRO CALCULATION FILE (SUN AND STAR)

a. Hasty Astro (Sun) Calculation File. This program computes a grid azimuth and check angle from observations of the sun. The program uses an internal electronic ephemeris, which eliminates the need to extract data from FM 6-300. The program also provides the option to use the internal clock (see arty astro method) of the device to determine the date and time of tip. Date and time can also be entered manually. The ability to manually input date and time of observation allows the computation to be performed at a site remote from where the fieldwork is performed. The Survey Control Point File can be accessed from the program. This allows data for the position of the observation to be imported directly into the computation (the latitude and longitude must be included in the Survey Control Point File). (See TM 11-7025-300-10, page 5-62, for step-by-step procedures.)

b. Hasty Astro (Star) Calculation File. This program computes a grid azimuth and check angle from observations of survey stars. The user must enter the number of the star being used at the STAR NO/NAME prompt. The program has the same capabilities as the Hasty Astro (Sun) program. (See TM 11-7250-300-10, page 5-65, for step-by-step procedures.)

Note. DA Form 7361-R (Computation of Astronomic Azimuth by the Hasty Astro Method (FED MSR)) (Figure 10-14) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form. A list of star names and numbers is located on the back of the form (Figure 10-15).

10-13. STAR ID CALCULATION FILE

a. The Star ID Calculation File computes the approximate azimuth and altitude to a selected star at a date and time chosen by the user. The orientation data will help identify survey stars for astronomic observation or navigation. The program will compute the approximate azimuth and altitude (vertical angle) to any of the 73 survey stars listed in FM 6-300. The orientation data are accurate to within 5 mils. (See TM 11-7250-300-10, page 5-71, for step-by-step procedures.)

b. DA Form 7362-R (Computation of Azimuth and Vertical Angle to Selected Star (Star ID) (FED MSR)) (Figure 10-16) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form.

10-14. POLARIS TABULAR METHOD CALCULATION FILE

a. The Polaris Tabular Method Calculation File computes a grid azimuth from three sets of observations of the star Polaris, using the Polaris Tabular method. The program checks the accuracy specifications in the same manner as described for the altitude method (paragraph 10-11). (See TM 11-7025-300-10, page 5-75, for step-by-step procedures.)

b. DA Form 7363-R (Computation of Astronomic Azimuth by Polaris Tabular Method (FED MSR) (Figure 10-17) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form.

10-15. GRID CONVERGENCE CALCULATION FILE

a. The Grid Convergence Calculation File converts a UTM grid azimuth from a gyroscopic (true) azimuth. The program also computes the convergence from true to grid azimuth for an area of operations. (See TM 11-7250-300-10, page 5-78, for step-by-step procedures.

b. DA Form 7364-R (Computation--Convergence of True Azimuth to Grid Azimuth (FED MSR)) (Figure 10-18) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form.

10-16. TRIG TRAVERSE CALCULATION FILE

a. The Trig Traverse File computes horizontal distances and comparative accuracy from trig-traverse fieldwork. (See TM 11-7025-10, page 5-90, for step-by-step procedures.)

Note. M= SUBTENSE is no longer used and will be removed from the next version.

b. DA Form 7365-R (Computation of Trig Traverse (FED MSR)) (Figure 10-19) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form.

10-17. INTERSECTION CALCULATION FILE

a. The Intersection Calculation File computes the coordinates and height of an unknown point (target) from intersection fieldwork. The program can be used for either intervisible or nonintervisible bases. The Survey Control Point File can be accessed from the initiation screen. This program has the capacity to store 40 targets for three sets of OPs. For example, in file A= from the two selected OPs, the program will store data for 40 targets. The same amount of targets can be stored in files B= and C= regardless of whether the OPs are the same or one or both are new OPs. If additional targets are required from the same two OPS, press the next open target record (that is, B=), enter data, confirm data, and press the C key. Continue to record target data and select open target records until all targets have been computed. If more than 40 targets are required, then go to Summary List. Select a blank file, and start a new calculation. (See TM 11-7025-300-10, page 5-96, for step-by-step procedures.)

b. DA Form 7366-R (Computation of Coordinates and Height by Intersection (FED MSR)) (Figure 10-20) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form.

10-18. ARTY ASTRO CALCULATION FILES (SUN AND STAR)

a. Arty Astro Observation (Sun). This program computes a grid azimuth from three observations of the sun. This program uses an internal electronic ephemeris, which eliminates the need to extract data from FM 6-300. The program provides the option of using the internal timer or manually entering the date and time of tip for each observation.

(1) To use the internal timer, the correct date and accurate time must be entered during the FED STATUS setup as mentioned in Section I. If the time module is selected, the DETERMINE TIP OF OBSERVATION screen will appear. When tip is determined, press the K key.

(2) The user also has the option to press the N key and return to the initiation screen. The user can then select not to use the time module. The ability to manually input date and time of observation allow the fieldwork to be performed without the FED MSR being at the site of observation. The user can access the Survey Control Point File to import location data for the observing station only if the latitude and longitude are entered in the Survey Control Point File. If the geographic location is not entered in the Survey Control Point File, the program will display NO APPLICABLE SURVEY POINTS AVAILABLE FOR ACCESS. The program checks the accuracy of the observation in the same manner as described in the altitude method (paragraph 10-11). (See TM 11-7250-300-10, page 5-81, for step-by-step procedures.)

b. Arty Astro Observation (Star). This program computes a grid azimuth from three observations of any survey star. This program functions the same as the Arty Astro Sun program with the exception that it computes azimuth from observations of survey stars. The program will compute the azimuth from any of the 73 survey stars listed in FM 6-300. (See TM 11-7250-300-10, page 5-85, for step-by-step procedures.)

c. DA Form 7367-R. DA Form 7367-R (Computation of Astronomic Azimuth by the Arty Astro Method (FED MSR)) (Figure 10-21) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form. The star names and numbers are located on the back of the form (Figure 10-22).

Section III

CONVERSION AND TRANSFORMATION WITH THE FED MSR

The transformations function of the FED MSR will allow the operator to perform various types of survey conversions and transformations. The type of transformation desired is selected from the TRANSFORMATIONS MENU (Figure 10-23). The FED MSR will maintain up to three completed calculations in its data base for each type of transformation. Completed calculations are automatically saved in the data base. Records remain in the data base until the operator either deletes or writes over the record. The device will allow the operator to establish a new calculation record or view or edit an existing one.

10-19. TRANSFORMATIONS

The transformations function of the FED MSR will allow the operator to perform conversion of UTM coordinates to geographic coordinates and geographic coordinates to UTM coordinates. It also provides for zone-to-zone transformation of coordinates and azimuth and datum-to-datum coordinate transformations. The FED MSR transformation forms and calculation procedures were designed to be similar to the FED MSR survey calculations to simplify their use. See Section II, paragraphs 10-6a through e, for an explanation of the following:

  • How different parts of the FED MSR forms are used.

  • How to select a calculation.

  • How to enter data.

  • How to edit a calculation.

  • How to perform various special operations.

Detailed instructions for the use of the FED MSR are in TM 11-7025-300-10. For further reference, conversions and transformations are discussed in Chapter 11.

10-20. UTM TO GEO COORDINATE CONVERSION FILE

a. This program converts UTM coordinates to geographic coordinates. The Survey Control Point File can be accessed from this calculation. (See TM 11-7025-300-10, page 5-100, for step-by-step procedures.)

b. DA Form 7368-R (Computation--Conversion UTM to GEO Coordinate, GEO to UTM Coordinate, Zone-To-Zone Transformation (FED MSR)) (Figure 10-24) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form.

10-21. GEO TO UTM COORDINATE CONVERSION FILE

a. This program converts geographic coordinates to UTM coordinates. The Survey Control Point File cannot be accessed from this calculation. (See TM 11-7025-300-10, page 5-103, for step-by-step procedures.)

b. DA Form 7368-R is also used for recording the GEO to UTM coordinate conversion data. (See Figure 10-24.)

10-22. ZONE-TO-ZONE COORDINATE CONVERSION FILE

a. This program, also referred to as zone-to-zone transformation, transforms UTM grid coordinates and azimuth from one grid zone into terms of an adjacent grid zone. The Survey Control Point File can be accessed from this calculation. (See TM 11-7025-300-10, page 5-106, for step-by-step procedures.)

b. DA Form 7368-R is also used for recording the zone-to-zone transformation data. (See Figure 10-24.)

10-23. UTM TO UTM DATUM CONVERSION FILE

a. This program transforms UTM coordinates from a selected UTM datum to another selected UTM datum. The program also allows the option of zone-to-zone transformation. If yes (option Y) is selected, the ending grid zone must be entered. The datum numbers must be entered (known) for all calculations. The Survey Control Point File can be accessed from these calculations. (See TM 11-7025-300-10, page 5-109, for step-by-step procedures.)

b. DA Form 7369-R (Computation--Datum to Datum Coordinate Transformation Listed Datums (FED MSR)) (Figure 10-25) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form. A list of datum names and corresponding numbers are located on the back of the form (Figure 10-26), in Appendix E, and in TM 11-7025-300-10 (pages B-34 through B-37).

10-24. UTM TO GEO DATUM CONVERSION FILE

a. This program transforms UTM coordinates from a selected UTM datum to GEO coordinates of a selected GEO datum. (See TM 11-7025-300-10, page 5-112, for step-by-step procedures.)

b. DA Form 7369-R is also used for recording data transformed from UTM to GEO datum. (See Figure 10-25.)

10-25. GEO TO UTM DATUM CONVERSION FILE

a. This program transforms GEO coordinates from a selected GEO datum to UTM coordinates of a selected UTM datum. (See TM 11-7025-300-10, page 5-115, for step-by-step procedures.)

b. DA Form 7369-R is also used for recording data transformed from GEO to UTM datum. (See Figure 10-25.)

10-26. GEO TO GEO DATUM CONVERSION FILE

a. This program transforms GEO coordinates from a selected GEO datum to another selected GEO datum. (See TM 11-7025-300-10, page 5-118, for step-by-step procedures.)

b. DA Form 7369-R is also used for recording data transformed from one GEO datum to another. (See Figure 10-25.)

10-27. KRASSOVSKY TO UTM DATUM CONVERSION FILE

a. Krassovsky to UTM datum coordinate transformations transform UTM coordinates from a selected Krassovsky datum to a selected UTM datum. The datum numbers must be entered (known) for all calculations. (See TM 11-7025-300-10, page 5-121, for step-by-step procedures.)

b. DA Form 7370-R (Computation--Datum-To-Datum Coordinate Transformation Gauss Kruger (GK) Datums (FED MSR)) (Figure 10-27) is used to record the data determined. The instructions for computing the data to be recorded are shown on the front of the form. A list of datum names and corresponding numbers is located on the back of the form (Figure 10-26), in Appendix E, and in TM 11-7025-300-10 (pages B-34 through B-37). The Survey Control Point File can be accessed from these calculations.

10-28. UTM TO KRASSOVSKY DATUM CONVERSION FILE

a. UTM to Krassovsky datum coordinate transformations transform UTM coordinates from a selected UTM datum to a selected Krassovsky datum. (See TM 11-7025-300-10, page 5-122, for step-by-step procedures.)

b. DA Form 7370-R is also used to record UTM to Krassovsky datum coordinated transformation. (See Figure 10-27.)

10-29. BESSEL TO UTM DATUM CONVERSION FILE

a. Bessel to UTM datum coordinate transformations transform UTM coordinates from a selected Bessel datum to a selected Bessel datum to a selected UTM datum. (See TM 11-7025-300-10, page 5-127, for step-by-step procedures.)

b. DA Form 7370-R is also used to record Bessel to UTM datum coordinate transformations. (See Figure 10-27.)

10-30. UTM TO BESSEL DATUM CONVERSION FILE

a. UTM to Bessel datum coordinate transformations transform UTM coordinates from a selected UTM datum to a selected Bessel datum. (See TM 11-7025-300-10, page 5-130, for step-by-step procedures.)

b. DA Form 7370-R is also used to record UTM to Bessel datum coordinate transformations. (See Figure 10-27.)

Note. When performing a Krassovsky or Bessel to UTM datum coordinate transformation, the user must select datums and/or numbers from the box at the top of the back of DA Form 7370-R. When performing a UTM to Krassovsky or Bessel datum coordinate transformation, select datums and/or numbers from the 99 listed datums.

10-31. USER-DEFINED TO USER-DEFINED DATUM CONVERSION FILE

a. User-defined to user-defined datum coordinate transformations transform UTM coordinates from a selected user-defined datum to another selected user-defined datum. These programs allow the option of zone-to-zone transformation. If yes (option Y) is selected, the ending grid zone must be entered. The Survey Control Point file cannot be accessed from any of these calculations. (See TM 11-7025-300-10, page 5-133, for step-by-step procedures.)

b. DA Form 7371-R (Computation--Datum-To-Datum Coordinate Transformation User-Defined Datums (FED MSR)) (Figure 10-28) is used to record the data determined. The instructions for recording the data determined are shown on the front of the form. The listed datums for computing these transformations and datum numbers are located on the back of the form. This information can also be found in Appendix E. Also, the Defense Mapping Agency (DMA) or a higher headquarters will disseminate user-defined datum parameters when needed.

10-32. USER-DEFINED TO LISTED DATUM CONVERSION FILE

a. User-defined to listed datum coordinate transformations transform UTM coordinates from a selected user-defined datum to a selected listed datum. (See TM 11-7025-300-10, page 5-139, for step-by-step procedures.)

b. DA Form 7371-R is also used to record user-defined to listed datum coordinate transformations. (See Figure 10-29.)

10-33. LITSTED TO USER-DEFINED DATUM CONVERSION FILE

a. Listed to user-defined datum coordinate transformations transform UTM coordinates from a selected listed datum to a selected user-defined datum. (See TM 11-7025-300-10, page 5-142, for step-by-step procedures.)

b. DA Form 7371-R is also used to record listed to user-defined datum coordinate transformations. (See Figure 10-30.)



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