Abstract: A modular post comprising a plurality of pole modules arranged one above the other along a central axis, said pole modules comprising a functional pole module for receiving and/or transmitting signals; said functional pole module comprising: a housing comprising a lower, middle, and upper sections; a functional unit comprising a wireless communication means, and a power and data interface configured for being connected to a power source and to the wireless communication means, for powering the wireless communication means, for powering another functional unit of another functional pole module, and for transmitting and/or receiving data to/from the another functional unit; wherein the lower section comprises a coupling interface for coupling the functional pole module to another pole module located below along the central axis, and/or wherein the upper section comprises a coupling interface for coupling the functional pole module to another pole module located above along the central axis.