Callsign:	S V C4
MMSI number:	316053364
Navigational status:	Undefined/default (15)
Vessel class:	(0)
Location:	42°39.17' N 82°30.63' W - locator EN82RP86RQ - show map 4.2 km Northeast bearing 24° from Algonac, Saint Clair County, Michigan, United States [?] 7.7 km East bearing 68° from Pearl Beach, Saint Clair County, Michigan, United States 56.6 km Northeast bearing 51° from Detroit, Wayne County, Michigan, United States 110.4 km West bearing 251° from London, Ontario, Canada
Last position:	2025-06-05 19:40:07 UTC (206d 9h41m ago) 2025-06-05 15:40:07 EDT local time at Algonac, United States [?]
Course:	177° – heading 177°
Speed:	17 km/h
Dimensions:	length 10 m width 4 m draught 0.0 m
Last path:	S V C4>ais via AIS-CK
Positions stored:	355

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.