Call sign GSTDR37. Squawk 3037. USN Blackhawk 167847.
USS Mount Whitney.
Mount Whitney is the most sophisticated Command, Control, Communications, Computer, and Intelligence (C4I) ship ever commissioned,[4] She incorporates various elements of the most advanced C4I equipment and gives the embarked Joint Task Force Commander the capability to effectively command all units under their command.
Mount Whitney can transmit and receive large amounts of secure data to and from any point on earth through HF, UHF, VHF, and SHF (satellite) communications channels. This electronic technology enables the Joint Intelligence Center and Joint Operations Center to provide the most timely intelligence and operational support available in the Navy.
https://en.wikipedia.org/wiki/USS_Mount_Whitney