The City of Arvada is developing two new communications sites in support of the city’s first responder P25 land mobile radio (LMR) system to service City of Arvada Public Safety and Public Works and Arvada Fire. The new system will expand radio coverage in the west and increase interoperability with the City of Lakewood and Denver.
During the early stages of the planning phase the city identified an interference issue which was determined to be passive reflection of Arvada’s own radio signals caused by buildings and bi-directional amplifiers (BDA) installed throughout downtown Denver. The interference was only occurring at certain locations in the City of Arvada.
After identifying the interference and its cause the city developed a mitigation strategy, which consisted of building the large tower (180’ monopole) at the Arvada water tank site in the Candelas area on the west side of town and building a small tower (60’ monopole) at the City of Arvada Wastewater Facility located east of downtown Arvada. The small tower will be low enough to not be visible to Denver, therefore the radio signals could not be reflected back. The tower will be high enough to be seen by the sites that have the known interference.