ATP-3-09-30 Observed Fires Download

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Observer Self-location Methods 28 September 2017 ATP 3-09.30 A-5 with PSS SOF and DPPDB imagery, a trained observer team can generate a mensurated grid to their location. Other imagery systems that may be available can be used, but will not generate as accurate a location. SELF-LOCATION BY USE OF DIGITAL SYSTEMS A-6. This method is also highly accurate. It is best employed while on patrol either on foot or in a vehicle. GPS systems such as the Defense Advanced GPS Receiver provide a grid by triangulating the location of the receiver in reference to satellites. Other systems such as the LLDR IIH or PFED use an on board GPS to self-locate and can be used to generate an accurate self-location. Example A laser rangefinder equipped observer, A23, has no known points in the area. The FDC, A16, instructs observer to contact A47, a nearby observer with a lightweight laser designator rangefinder that is accurately located and oriented, for assistance in establishing known points in the target area. Mutually agreeable points have been identified. A16 THIS IS A47, KNOWN POINTS FOR A23, OVER. KNOWN POINT TREE, DIRECTION 0832, DISTANCE 5740, VERTICAL ANGLE MINUS 9, KNOWN POINT TANK BODY, DIRECTION 0947, DISTANCE 6370, VERTICAL ANGLE MINUS 11, OVER. With two known points established, the observer operating the laser rangefinder being located can now self-locate by using two known points. A16 THIS IS A23, SELF LOCATION, OVER. KNOWN POINT TREE, DIRECTION 5823, DISTANCE 6240, VERTICAL ANGLE MINUS 10, KNOWN POINT TANK BODY, DIRECTION 6207, DISTANCE 5970, VERTICAL ANGLE MINUS 14, KNOWN POINT TREE ON LEFT, OVER. A23 THIS IS A16. LOCATION NK38374512, DIRECTION TO TREE 5815, OVER. LOCATION BY SIMULTANEOUS OBSERVATION A-7. An observer with an accurately located and oriented laser rangefinder can help determine the location of another laser rangefinder. This is done by performing a simultaneous observation on two illuminating (illum) rounds with the other laser rangefinder observer (see figure A-4 on page A-6). This technique is especially useful during periods of limited visibility. Both observers must be able to see and lase the illuminating rounds. Also, these illuminating rounds must be separated by at least 300 mils as observed from the laser rangefinder position being located. Thorough prior coordination between the two observers must take place for this technique to be effective. The observer with the laser rangefinder being located records the direction to a reference point and prepares to observe. The observer with the accurately located laser rangefinder acts as the controlling station and initiates the illumination call for fire as outlined in the example. Note. Ranging an illuminating canister may be difficult for some observers. A variation of this techniques is to adjust the illumination so that it burns on the ground. Both observers then range the flare. WARNING Lasing or ranging above the skyline requires specific authorization from range control during peacetime training.