A Moment’s Peace is a Side Quest in Horizon Zero Dawn that requires you to find an Undefined Signal Location.
You can accept this quest from Vilgund in Meridian near the Hunter’s Lodge. He asks you to investigate a banuk village. Upon arriving in the village you must talk to 3 of the settlers. One is a woman near the campfire, the next is a shaman standing between several machines at the end of the village, the third is the leading shaman repairing a machine by the campfire. Talking to the shaman gets you a new objective to find an Undefined Signal.
Look up to the mountains and press R3 to use your focus scan. There you can scan the undefined signal. See the screenshot below:
Now all that’s left is to climb up the mountain at the end of the village and investigate the undefined signal. From here it’s quite simple and you just need to follow the waypoints to finish the mission. And that’s how you find the undefined signal in the banuk village of HZD. Happy questing!