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The Frequency Modulation skill increases the falloff range of many types of ECM modules.

Frequency Modulation
Advanced understanding of signal waves. 10% bonus to falloff for ECM, Remote Sensor Dampeners, Tracking Disruptors and Target Painters per skill level.
Structure
Volume: 0.01 m3 packaged
Miscellaneous
Falloff Range Bonus: 10%
Training Time Multiplier: 3
Base Price: 160,000 ISK
Required Skills
Primary Skill Required
Electronics III
Secondary Skill Required
Electronic Warfare II
Electronics I