You receive 5 Listenomitrons to place at "strategic locations around Freeport".
You will get a message in the middle of your screen saying "Strategic Location" when you are in the right spot. Right click the Listenomitron to get a popup window and select "Place the listening device".
Place one in the the guild registrar's building on the table in East Freeport ( -110, -36, 42 ) Copy/waypoint -110, -36, 42