What is SOT-A?

A SOT-A is a signals intelligence–electronic warfare element of the United States Army Special Forces. They are low-level SIGINT collection teams that intercept and report operational and technical information derived from tactical threat communications through prescribed communications paths. The mission of a SOT-A is to conduct SIGINT/EW in support of information operations elements] to support existing and emerging SOF missions worldwide.

SOT-A's are the direct descendants of the Army Security Agency's Special Operations Detachments.