Omnidirectional antennas are connected to the access point via short, attached plenum cables. The antennas can be mounted to a ceiling and provide a large, circular coverage area. Omnidirectional antennas can also be used to provide good coverage in a retail environment, both inside and outside, as well as in areas where trucks or police cars park to upload data. The antenna operates in the 2.4 GHz frequency range and is designed for indoor or outdoor use.