We describe a simple, inexpensive system for locating satellite-received transmitters (PTTs) in the field using a rotating antenna, programmable radio receiver, signal mixer, and a laptop computer with audio and spreadsheet software. This system allows the user to triangulate the position of the transmitter and can be used to find transmitters that are either lost or on animals that are not moving often, even when the signals are too weak to be detected by the Argos satellite system. By locating PTTs, one may be able to determine the fate of the animals carrying the tags and retrieve the tags for relatively inexpensive refurbishing.