Relay tower 1DL-109

Relay tower 1DL-109 is a location in the Commonwealth

Layout
The relay tower sits atop a rocky hill, in close proximity to a water lock and a set of railroad tracks. Around the base of the tower is a terminal, which can be used to extend the tower's satellites, to amplify the signals in the surrounding area, acquiring three new radio signals for the Pip-Boy radio. Also, by the base of the tower, there is a broken utility Protectron, with randomized loot.

Signals

 * Boston City Works Beacon is 89 meters away and can be found by heading west towards the water lock and inside the small hatch in the operations building.
 * Distress signal (Relay tower 1DL-109) is 89 meters away and can be found inside a train car by heading south-southeast from the radio beacon until meeting the train tracks and finding a train with several feral ghouls. The fourth car along (blue car, turned on its side) has a hatch to enter the train, hidden behind a bush. It can be easily found, as it's the only bush touching the train on either side.
 * Garbled radio beacon is 208 meters away and can be found by heading due east from Oberland station until burning trees and a crashed alien spaceship are seen, then following the green blood trail to an unmarked cave at the UFO crash site.

Appearances
Relay tower 1DL-109 appears only in Fallout 4.