Systems and methods for rotating X-ray devices are disclosed. The antenna module includes an antenna and a radio frequency transceiver coupled to the antenna. A concave detector mask is used with a spherical detector in order to reduce the secondary beam path and increase detector efficiency and the opening in the detector mask can be offset from the mask center to achieve high 2\u03b8 angle measurements. The step of acquiring the geographic indicator further comprises the step of updating a counter upon each selection of a geographic indicator. This approach to power management achieves optimal allocation of time used to send Data Alert frame and data frame thus minimizes power consumption by all wireless stations of the IBSS.