Callsign:	WDD4771
MMSI number:	367148830
Navigational status:	Undefined/default (15)
Vessel class:	Tug (52)
Destination:	(ETA 19000101000000)
Location:	45°25.51' N 85°19.25' W - locator EN75IK12MA - show map - static map 8.0 miles North bearing 338° from Charlevoix, Charlevoix County, Michigan, United States [?] 15.9 miles West bearing 268° from Harbor Springs, Emmet County, Michigan, United States 48.0 miles North bearing 18° from Traverse City, Grand Traverse County, Michigan, United States 87.5 miles Southwest bearing 213° from Sault Sainte Marie, Chippewa County, Michigan, United States
Last position:	2011-06-10 19:53:02 UTC (248d 16h50m ago) 2011-06-10 15:53:02 EDT local time at Charlevoix, United States [?]
Course:	225°
Speed:	7 MPH
Dimensions:	draught 0.0 m
Last path:	WDD4771>ais via MarineTraffic
Positions stored:	230

callsign		distance	last heard - UTC		callsign		distance	last heard - UTC
DW7501		12.6 miles 156°	2012-02-14 12:40:32		CW3642		12.9 miles 180°	2012-02-14 12:41:36
W8CCE B		15.0 miles 69°	2012-02-14 12:28:57		W8CCE-B		15.0 miles 69°	2012-02-14 12:40:00
N8IT-13		15.3 miles 70°	2012-02-13 18:42:18		N8XYR-5		16.1 miles 85°	2012-02-07 15:01:26
N8XYR		16.1 miles 85°	2012-02-14 00:15:10		N8IT-14		18.2 miles 78°	2012-02-14 12:42:35
N8IT-5		18.3 miles 83°	2012-01-21 15:57:10		KB5DPX		18.5 miles 104°	2012-02-14 12:43:20
CW2616		18.5 miles 153°	2012-02-14 12:41:18		CW2615		18.5 miles 153°	2012-02-14 12:40:27
CW8093		18.8 miles 114°	2012-02-14 12:42:05		DW7133		18.9 miles 81°	2012-02-14 12:42:05
N8JWB-9		21.8 miles 120°	2012-02-11 21:04:06		CW8247		22.3 miles 142°	2012-02-14 12:34:33
CW4152		25.2 miles 50°	2012-01-19 22:58:01		DW7131		26.2 miles 134°	2012-02-14 12:42:04

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.