What Equipment Is Needed To Perform Localization/Triangulation?

Performing triangulation of sound sources based on time-of-arrival distances requires multiple recorders precisely synchronized to the same clock, as small differences in time can translate to large inaccuracies in distance. The SM2, SM2Bat, SM3, and SM3Bat all contain hardware that, when paired with an external GPS accessory, allow them to maintain synchronicity with GPS time to within 1 millisecond, making them suitable for this kind of work.

The SM4 and SM4Bat FS/ZC do not have the hardware necessary for continual synchronization with GPS time and therefore cannot be used for triangulation.

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