Sonic generator

Sonic Generators (also known as Sonic Attractors or Sonar Arrays ) are devices used by the Appalachia Brotherhood of Steel to lure a scorchbeast into a kill zone to be more easily dispatched.

Background
After the emergence of the Scorched Plague around 2083, the rapidly exponentially growing threat forced the Brotherhood to make it their mission to eliminate the disease. Whose spread via infected people and creatures was minuscule compared to its spread by gigantic flying bat mutants named "scorchbeasts."

To this end, they focused their main efforts on killing the scorchbeasts. Eventually the threat began to be too much for the Brotherhood to handle, and by 2093, they had consolidated their forces to Fort Defiance and the Thunder Mountain power plant. Needing to eliminate the threat, the Brotherhood debated using the automated nuclear silos of the region against them. This was forbidden by Elder Roger Maxson however, forcing the chapter to rely on more conventional means.

To combat the beasts the Brotherhood would lure them into a kill zone known as a "Protected Zone" where the mutants would be dispatched by overwhelming firepower from ground forces and automated surface to air missile batteries. This effort however wouldn't prove to be enough to defend them from the threat, both because of the beasts breading cycle and the reliance of their extremely limited manpower and actual power from the Thunder Mountain power plant. With both Thunder Mountain and Fort Defiance falling to the Scorched Plague in August 2095 these devices, along with all other Brotherhood materiel would lie abandoned, until the Vault 76 dwellers emerged on October 23 2102.

Operation
Due to scorchbeasts being fundamentally mutated bats, they are constantly using ultrasound location to tell where they are. For normal bats, echolocation is quite limited, with their ultrasound being absorbed by the atmosphere. For them detection beyond 20 to 30 meters isn't really practical. Scorchbeasts however emit much more powerful ultrasound vibrations with an unparalleled range. Usually, this is to their advantage. This advantage was turned against them with the creation of the sonic generator.

These generators, worked on by Scribes Hailey Takano and Grant McNamara, were installed at Fort Defiance and Mosstown. They were intended to be used with a large scale detection network focused to the 103.4 kHz frequency. The detection network was to be used to find the source of the "a single colony". Enclosed are the schematics for a Sonic Scanning Module. It's range is still limited. You'll have to find some way of monitoring a larger area.

When operational the sonic generators were so loud that ear protection was needed at all times within a 90 meter radius, standing withing a 3 meter radius wasn't recommend for any length of time, and the generators themselves took a minute to fully cycle on. If there were no scorchbeast swarms in range, the Perimeter Defense System would automatically turn itself off. Should emergency maintenance be needed during a firefight with the beasts Scribe Grant would've given the instructions on how to do it. When a scorchbeast threat would enter the "Protected Zone" Automated SAMS and personnel would attack the creature.

Quests

 * Event: Line in the Sand

Locations

 * Fort Defiance
 * Mosstown