Star Wars: A Flicker of Hope
A com jammer prevents any communication—including hyperspace transceivers, comlinks, and even HoloNet transceivers—from functioning properly within 6 squares (starship scale). It takes a DC 30 Use Computer check to send or receive a message within this area.
|ACCESSORY||EMPLACEMENT POINTS||AVAILABILITY||SIZE RESTRICTION||COST|
|Com jammers||1||Military||None||20,000 base|
Source: Scum and Villainy, p. 57