ATP-3-09-12 Field Artillery Counterfire and Weapons Locating Radar Operations Download
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Appendix H H-6 ATP 3-09.12 26 October 2021 Figure H-4. Close proximity systems operation 360 degree mode When one AN/TPQ-53 WLR is operating in a 360 degree mode and a second AN/TPQ-53 WLR is operating in a 90 degree mode, the systems must be separated by 20km. The systems should be operating on different frequencies (at least 25 MHz separation, more is better). The system in 360 degree mode should have an active sector of at most 6222 mils (350 degrees) with at least a 178 mils (10 degrees) inactive region being centered on the azimuth angle towards the other AN/TPQ- 53 system. The system in 90 degree mode should be oriented such that the other AN/TPQ-53 WLR in 360 degree mode is at least 5 degrees outside of the operating sector. This coordinated azimuth sector control ensures that neither system forms transmit or receive beams within ±89 mils (5 degrees) in azimuth of the other system. Co-located Systems - 360 degree mode, above, shows the geometric orientation of the two co-located systems in 360 degree mode. AN/TPQ-53 RADAR POSITION AREA CLUSTER METHOD H-23. During LSCO, it may be beneficial for the counterfire HQ to issue placement direction with relatively broad guidance. The sheer number of AN/TPQ-53s on the battlefield may make cueing both WLRs within a BCT’s AO at the same time unnecessary. To facilitate bounding, survivability moves, and other tactical needs, using the RPA cluster method can be beneficial. It will allow the counterfire HQ to centrally plan the BCTs’ AN/TPQ-53s placement and search guidance, while still giving the BCTs leeway to execute decentralized operations. H-24. As stated previously, the AN/TPQ-53 is designed to be a system of systems. To enable the counterfire HQ to rapidly issues RDOs, and manage the WLRs within its AO, using the BCTs’ two AN/TPQ-53s as a team that shares RPA clusters may be helpful. The counterfire HQ creates one RDO per BCT that gives the general location and search requirements for the BCT’s AN/TPQ-53s. Then the BCT COS must ensure that one WLR is always in position and cueing. The COS will then conduct decentralized execution of cueing and moving its AN/TPQ-53s as directed in the RDO, while ensuring one WLR is always in position and cueing as directed. This is a method not a standard.