ATN ATN NVM14 manual Fixed-Pattern Noise, Fixed Pattern Noise

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4. Fixed-Pattern Noise

This is usually a cosmetic blemish characterized by a faint hex- agonal (honeycomb) pattern throughout the viewing area that most often occurs at high light levels or when viewing very bright lights (See Figure 5-4). This pattern can be seen in every image intensifier if the light level is high enough. This condition is acceptable as long as the pattern does not interfere with viewing the image and interfere with the ability to perform the mission.

Figure 5-4

Fixed Pattern Noise

5-6

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Contents ATN NVM14 American Technologies Network CorpManual NVM14-002 Revision 3 July Safety Summary Page Equipment Limitations Table of Contents List of Figures List of Tables Table TitleUsage HOW to USE this ManualManual Overview Page General Information Helmet Mounted Day Multi-Use Minimonocular General Information Purpose of EquipmentTechnical Information Warranty InformationList of Abbreviations Equipment Description System Description WEIGHT, DIMENSIONS, and Performance PerfomanceDescription of Major Components DNS ATN NVM-14 Major ComponentsKit Components ATN NVM-14DNS Major ComponentsOptional Components Multi-Use Minimonocular Lens CapEye-cup Soft Carrying CaseHeadmount Assembly Lens TissueBattery AA Alkaline Battery 123A LithiumOptional Components Camera/Camcorder AdapterMounting Procedures Mounting the ATN NVM-14 to the Weapon Mounting ProceduresAttaching Weapon Mount to Weapon Attaching ATN NVM-14 to Weapon Mount Mounting the ATN NVM-14 to a HEAD/ Helmet Mount Attaching ATN NVM-14to Headmount AdapterAttaching ATN NVM-14to Head/Helmet Mount Page Operating Procedures Battery Life Battery InstallationOperating Instructions Install DL 123 batteries as follows DL123 Battery InstallationInstall standard AA batteries as follows Dnaas Battery InstallationMechanical Functions Mechanical FunctionsInfrared IR Illuminator Operations Zeroing Operational Defects Shading Zeroing Operational DefectsShading Mode Selector SwitchEdge Glow Edge GlowCosmetic Blemishes FLASHING, FLICKERING, or Intermittent OperationBright Spots Emission Points Bright Spots and Emission Points Black SpotsFixed-Pattern Noise Fixed Pattern NoiseChicken Wire Page Maintenance Preventive Maintenance Preventive Maintenance Checks and Services for ATN NVM-14Preventive Maintenance Checks and Services for ATN NVM-14 Preventive Maintenance Checks and Services for ATN NVM-14 Not Fully Mission Capable If Or damaged clips Operator Troubleshooting Operator Troubleshooting for ATN NVM-14 Malfunction Test or inspection Headmount Maintenance Cleaning the ATN NVM-14Browpad Replacement Neckpad Reinstallation Neckpad ReinstallationLacing the Sliding BAR Buckle Lacing the Sliding Bar BucklePage END Item Components Table A-1 ATN NVM-14 END Item ComponennentsRepair Parts List Table B-1 ATN NVM-14 Repair Parts ListIndex IND-2 For Technical Information ATN CorpATNNVM14-3 Info@atncorp.comINFO-2 North American Office