Callsign:	ZNRF4
MMSI number:	235002791
Vessel class:	Sailing (36)
Location:	51°38.02' N 0°43.87' E - locator JO01IP72RB - show map 3.6 miles West bearing 271° from Burnham on Crouch, Essex, England, United Kingdom [?] 4.7 miles Southwest bearing 245° from Southminster, Essex, England, United Kingdom 36.3 miles East bearing 76° from City of London, Greater London, England, United Kingdom 37.8 miles East bearing 76° from London, Greater London, England, United Kingdom
Last position:	2024-05-25 21:35:21 EDT (20d 16h13m ago) 2024-05-26 02:35:21 BST local time at Burnham on Crouch, United Kingdom [?]
Course:	200° – heading 511°
Speed:	0 MPH
Dimensions:	length 9 m width 3 m
Last path:	ZNRF4>ais via G7OCD
Positions stored:	49

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
BORA BORA		321.6 yards 101°	2024-06-03 07:56:47		OFF PISTE		356.8 yards 85°	2024-06-09 08:43:36
SWALLOW SARGO 31		468.3 yards 312°	2024-06-09 09:20:37		WAVE DANCER		472.4 yards 309°	2024-05-27 07:16:47
AQUISSE		0.4 miles 91°	2024-06-14 11:41:36		RAPA NUI		0.4 miles 88°	2024-05-30 10:58:38
RHAPSODY		0.5 miles 94°	2024-05-31 13:45:06		WATER MARGIN		0.5 miles 297°	2024-06-09 08:52:11
IONA OF HAMBLE		0.5 miles 292°	2024-05-30 10:25:24		CHOC ORANGE		0.7 miles 87°	2024-05-30 10:38:00
MANIC		0.8 miles 91°	2024-05-30 10:14:39		IRIDIUM		0.9 miles 88°	2024-05-27 09:17:35
235019844		0.9 miles 91°	2024-06-08 09:17:22		WINDRUNNER		1.0 miles 83°	2024-06-09 15:05:28
235025544		1.0 miles 49°	2024-06-06 08:14:04		RUMOURS		1.0 miles 82°	2024-06-09 06:42:39
ALSHIRA		1.2 miles 60°	2024-06-11 07:10:17		BIG BABY BLUE		1.2 miles 79°	2024-06-06 02:49:02
ALIENOR II		1.3 miles 78°	2024-05-25 09:06:46		ESMERELDA		1.5 miles 81°	2024-05-30 10:07:36

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.