The Tribes: Ascend/Drop Jammer is a deployable pack used by the Sentinel class in the game Tribes: Ascend. Once fully upgraded, the Sentinel can have two of these deployed at same time but only carries one with him at a time.
Operation
The Drop Jammer acts like the Raider's Jammer Pack but with a larger range and without consuming the player's energy. It scrambles all allies within its range, making them harder to see at distance due to the overlay texture, and also hides the HUD indicators above their heads from enemies. Furthermore, it partially uncloaks enemy Infiltrators who enter its radius. This makes the Drop Jammer a valuable asset for base defence and helps to hide the Sentinel from enemies when he assumes a sniping position. Keep in mind that the pack itself still shows up with an icon on the enemy HUD, thus you should deploy it out of the enemy's direct view to not give away its position and make use of its ability to work also through walls. Once deployed, an icon will appear in the bottom left of the player's HUD until the jammer is destroyed.