Minda is worried about an Oseram girl who has fled west into the desert. Out of fear of leaving, Minda wants you to take care of her and bring her back safely. It’s time to brave the sands of the Tay Cam and go on a rescue mission. This is how you complete the Signal Spike side quest in Horizon Forbidden West.
You will not be able to accept this quest until you have completed the Eye of the Earth story quest and unlocked the Base. Once done, head southwest of the Base to a settlement called Camp Nowhere. This little camp is where you will find Minda and take on the quest.
Follow the marker west until you reach the area where Silga is. You’ll know when you’ve reached the right area because you’ll hear Silga’s screams and see many machines. Kill the machine. When all of them have been destroyed, talk to Silga. Silga is trying to get her radio up and running and you’ll need help.
Now you will need to follow the rope up the mountain. From the first spike next to where Silga is, follow the rope attached to it. It will go from spike to spike until it stops at the top of the mountain. Press the triangle button to interact with the radio tower on the top of the mountain. This will pull up your Focus. Move the pointer until you receive more radio messages. Go back to the mountain and talk to Silga.
Now you will need to go to two other fields. To start, head north through Tallneck in The Shining Wastes. You are looking for the settlement known as the Scalding Spear. Once you reach this area, you’ll need to climb the large tower in the settlement. The tower is easy to climb and has clear handrails.
After reaching the Scalding Spear, you can use the campfire to quickly travel to your Base. This will allow you to climb the mountain above the Base relatively quickly. You’ll need to fight a few machines along the way. After you reach the top and scan the area, move on to the next waypoint. You can easily get there by gliding down from the top of the mountain.
When you get to the signal generator area, you will have to clear the area with the machines. After you defeat the machines, use Focus to find the source of the signal. You will find the origin behind a ruined wall and through an underwater area. After you discover the cashews, return to Silga to claim your reward.
https://www.gamepur.com/guides/how-to-complete-the-signal-spike-side-quest-in-horizon-forbidden-west How to complete the Signal Spike side quest in Horizon Forbidden West