Callsign:	P3ZM4
MMSI number:	209005000
IMO number:	403146
Navigational status:	Restricted manoeuvrability (3)
Vessel class:	Tug (52)
Destination:	MA CAS
Location:	50°10.64' N 1°59.60' W - locator IO90AE02TN - show map 48.0 km South bearing 183° from Swanage, Dorset, England, United Kingdom [?] 53.6 km North bearing 16° from Alderney, England, United Kingdom 90.8 km Southwest bearing 207° from Southampton, City of Southampton, England, United Kingdom 94.0 km Southwest bearing 223° from Portsmouth, City of Portsmouth, England, United Kingdom
Last position:	2025-06-30 19:49:36 UTC (30d 15h20m ago) 2025-06-30 20:49:36 BST local time at Swanage, United Kingdom [?]
Course:	254° – heading 246°
Speed:	10 km/h
Dimensions:	length 62 m width 13 m draught 5.5 m
Last path:	P3ZM4>ais via SM35
Positions stored:	2572

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.