Obtain the Duplexer and the Transponder
The next objective is to get RCX01-A39 Duplexer and SMU-97 Transponder. You’ll find the duplexer in the 98 NAR Regional and the transponder is located in Horizon’s Rest. Both of this places are marked in the picture above and will be marked in your game map.
You’ll find SMU-97 Transponder in the plane wreck in 98 NAR Regional. You’ll have to go through wooden fortification to get to the wreck (where you’ll find Scorched and Super Mutants).
The RCX01-A39 Duplexer can be found in the Horizon’s Rest. You can come across a few strong robots – hide behind the car to avoid their shots and defeat them. You can also use grenades. If the robots cause you any problems, you can take the duplexer from one of the red cars and quickly evacuate.
Create the Signal Repeater
Now, you have to create a Signal Repeater - use schematic, duplexer and transponder obtained earlier. Find the nearest tinker’s workbench and go to the Quest Items tab. You can build the workbench yourself in the CAMP system or use an already existing one e.g. in Flatwoods.
Next up is Fallout 76 Installing the Signal Repeater