Methods, systems, computer-readable media, and apparatuses for mapping multiple antenna systems using crowdsourcing data are presented. One disclosed example method includes the steps of detecting a condition associated with transmission of a plurality of wireless signals that are indistinguishable in content using multiple antennas dispersed at different locations and indicative of a base stationas a common transmitter; and in response to detecting the condition, identifying the base station as ineligible for providing signals for use with a range-based positioning technique.