A system for measuring the quality of a wireless communications network includes a measurement module coupled to a mobile device, such as a cell phone. The mobile device is provisioned for typical use on the wireless communications network. The measurement module receives measurement data from the mobile device over a first interface. The measurement module organizes the measurement data into a second format and transmits that data back to the mobile device over a second interface. The measurement module includes a real-time clock so that the data is transmitted back to the mobile device in order to be joined with other measurement data concurrently gathered by the mobile device.