HyperDic: blanket_jam

English > 1 sense of the expression *blanket jam*:
VERB	communication	blanket jam	jam a broad spectrum of frequencies to affect all communications in the area except for directional antenna communications

English > *blanket jam*: 1 sense > verb 1, communication
Meaning	jam a broad spectrum of frequencies to affect all communications in the area except for directional antenna communications.
Pattern	Somebody ----s; Somebody ----s something
Broader	jam, block	interfere with or prevent the reception of signals