Callsign:	PA4781
MMSI number:	244140446
Navigational status:	Moored (5)
Vessel class:	Pleasure (37)
Location:	52°37.44' N 4°46.36' E - locator JO22JO29RS - show map 1.1 miles Southeast bearing 118° from Alkmaar, Gemeente Alkmaar, North Holland, Netherlands [?] 3.7 miles South bearing 202° from Broek op Langedijk, Gemeente Langedijk, North Holland, Netherlands 17.9 miles North bearing 344° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 50.0 miles North bearing 14° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands
Last position:	2024-11-06 00:31:39 EST (2d 3h1m ago) 2024-11-06 06:31:39 CET local time at Alkmaar, Netherlands [?]
Course:	360° – heading 511°
Speed:	0 MPH
Dimensions:	draught 0.9 m
Last path:	PA4781>ais via pa2dx
Positions stored:	1

callsign		distance	last heard - EST		callsign		distance	last heard - EST
ANNEFEM		113.6 yards 45°	2024-11-07 07:06:21		SOUND OF SILENCE		290.3 yards 243°	2024-11-07 01:26:42
CORNELIA		465.1 yards 265°	2024-11-07 13:35:50		RES NOVA		0.8 miles 291°	2024-10-24 14:53:46
WAL-NOOD 1		0.8 miles 298°	2024-11-07 13:52:40		SCHIPPERSGRACHT		0.8 miles 198°	2024-10-24 17:11:04
ATALANTA		0.9 miles 197°	2024-10-30 18:43:49		VINCENT		1.4 miles 310°	2024-11-07 13:29:50
EXCALIBUR		1.6 miles 196°	2024-11-08 03:26:32		CW1880		1.7 miles 301°	2024-11-08 03:20:26
PF1B		2.0 miles 43°	2024-11-08 02:45:33		SAFIRA		2.1 miles 197°	2024-11-07 13:53:37
PA1MP B		2.2 miles 290°	2024-11-08 03:21:16		PA1MP-B		2.2 miles 290°	2024-11-08 03:21:26
PA1MP-N		2.2 miles 290°	2024-11-07 02:13:42		MONTON		2.3 miles 327°	2024-11-07 13:50:52
LEENDERT		2.3 miles 327°	2024-11-08 00:37:16		PD0LVS-D		2.3 miles 343°	2024-10-30 16:09:12
PD0LVS B		2.3 miles 343°	2024-10-30 16:07:52		PD0LVS-B		2.3 miles 343°	2024-10-30 16:08:02

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.