unjammable en · ADJ
Etymology
From un- + jammable.
Meanings
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(not-comparable) Not jammable; unable to be jammed; immune to jamming
Telemetry would be sent to Kinzei, who had agreed with great reluctance to ensure an unjammable signal got broadcast to seventy percent of the Northern Hemisphere.
2020, Andrew Vaillencourt, Sullivan's Gift:[…] use searchlights (set up in a long line) to serve as a primitive, but effective, form of unjammable radar.
2002, James F. Dunnigan, The Next War Zone: Confronting the Global Threat of Cyberterrorism: