Networks of data acquisition modules may include wireless and cabled networks. The data acquisition modules may include no antennas, one antenna, or two antennas. The antennas may be removable from a port on the data acquisition node allowing a common module design between the wireless and cabled networks. A rigid shell with arms may be constructed to house the antennas and a cable connector. The rigid shell may protect the antennas during transport, installation, and use of the data acquisition modules. For example, when driving a module into the ground, the rigid shell may prevent damage to the antennas.