OVERVIEW: The AN/SSQ-86 Data Link Communications (DLC) is an "A-size" air-dropped, one way acoustic communications buoy designed for communications with submarines.
DETAILS: The AN/SSQ-86 DLC sonobuoy is an communication buoy designed to transmit a preprogrammed message to a submerged submarine.
SOURCES: Friedman, Norman. The Naval Institute Guide to World Naval Weapon Systems, 1997-1998 Annapolis, Md: Naval Institute Press, 1998, pg. 45 ; Federation Of American Scientists -. "AN/SSQ-86 Data LinkCommunications (DLC)Sonobuoy." Accessed November 24, 2014. http://fas.org/man/dod-101/sys/ship/weaps/an-ssq-86.htm..