The image is a blue signboard with information about an old repeater station. The signboard is located on a stone wall and is located in front of a building. The text on the signboard reads "Old Repeater Station Heat from under ground" and provides information about the station's heating system. 

There are six sections on the board, each with a different illustration and text. The first section is titled "The heating system works like a fridge" and shows a diagram of the heating system, the second section shows a heat exchanger, and the third section shows an illustration of a solar panel. The fourth section has an image of a wind turbine and the fifth section has a map of the area.

At the bottom of the board there is a brief description of the station, which explains how it works and how it can be used to heat up the ground. There is also a link to a website for more information on the station.