| 摘要 |
Provided is a marker for mobile communication that establishes both suppressing of a temperature rise of an electric circuit board from solar radiation during daytime and a temperature drop thereof from radiation cooling during nighttime, and effective heat radiation of heat generated by electronic components mounted on the electronic circuit board. A marker (1) for mobile communication installed on the ground, characterized in that the marker has an insulating layer such as an air layer or a vacuum layer or a foam material layer or a fiber material layer between an electronic circuit board (9) and an upper surface of a casing (7), and that the lower side portion from the electronic circuit board (9) is configured from only a material with larger heat conductivity than the insulating layer. |
