Callsign:	MZCTB
MMSI number:	235033814
Vessel class:	Sailing (36)
Location:	50°45.11' N 1°31.58' W - locator IO90FS60UK - show map 5.5 km North bearing 340° from Yarmouth, Isle of Wight, England, United Kingdom [?] 9.6 km Northwest bearing 306° from Shalfleet, Isle of Wight, England, United Kingdom 128.9 km Southwest bearing 230° from London, Greater London, England, United Kingdom 131.0 km Southwest bearing 230° from City of London, Greater London, England, United Kingdom
Last position:	2025-06-29 10:49:37 UTC (44d 14h18m ago) 2025-06-29 11:49:37 BST local time at Yarmouth, United Kingdom [?]
Course:	156° – heading 511°
Speed:	1 km/h
Last path:	MZCTB>ais via G7RUH
Positions stored:	365

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.