(DoD) In space operations, deliberate actions taken to deny or disrupt a space system, service, or capability. Purposeful interference threats include but are not limited to: mission uplink or downlink interference; command uplink interference; telemetry downlink jamming; positioning jamming; unauthorized access; information insertion; and signal probing. Also called PI.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). purposeful interference. Retrieved September 21, 2026, from http://smartdefine.org/purposeful_interference/definitions/1963537 |
| Chicago | Military Dictionary (DoD). 2011. "purposeful interference" http://smartdefine.org/purposeful_interference/definitions/1963537 (accessed September 21, 2026). |
| Harvard | Military Dictionary (DoD) 2011, purposeful interference, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/purposeful_interference/definitions/1963537>. |
| MLA | Military Dictionary (DoD). "purposeful interference" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/purposeful_interference/definitions/1963537> |