Callsign:	338189584
MMSI number:	338189584
Vessel class:	(0)
Location:	37°49.01' N 122°28.46' W - locator CM87ST36BA - show map 3.9 miles South bearing 188° from Belvedere, Marin County, California, United States [?] 4.0 miles South bearing 194° from Tiburon, Marin County, California, United States 4.2 miles Northwest bearing 314° from San Francisco, San Francisco County, California, United States 45.7 miles Northwest bearing 316° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-02 12:56:54 EST (30d 6h31m ago) 2025-01-02 09:56:54 PST local time at Belvedere, United States [?]
Course:	91° – heading 511°
Speed:	11 MPH
Last path:	338189584>ais via SUNSET
Positions stored:	3041

callsign		distance	last heard - EST		callsign		distance	last heard - EST
FREEDOM		85.9 yards 331°	2025-01-25 13:59:48		BREATHE		113.0 yards 140°	2025-01-14 15:29:59
SF MARINE 7		259.9 yards 233°	2025-01-31 14:37:35		S/V FREE SWAN 461		349.2 yards 350°	2025-01-11 19:51:53
SD-2032 (UNCREWED)		374.1 yards 275°	2025-01-13 13:12:06		BRAVO		380.5 yards 352°	2025-01-25 13:49:05
ZIMMER		411.5 yards 330°	2025-01-21 06:24:18		367497450		494.8 yards 278°	2025-01-19 16:26:35
368022760		505.9 yards 250°	2025-01-12 16:58:51		LA VIAJERA		517.2 yards 334°	2025-01-15 17:38:23
338349184		0.3 miles 82°	2025-01-23 16:00:31		PILOT BOAT SAN FRAN		0.3 miles 61°	2025-01-30 11:54:57
FLEXI FLYER		0.3 miles 314°	2025-01-25 15:54:25		BOSSA NOVA		0.3 miles 4°	2025-01-20 18:07:07
JUSTIFIED		0.4 miles 324°	2025-02-01 11:33:11		JOUJOU		0.4 miles 320°	2025-01-19 17:27:13
NANCY		0.4 miles 84°	2025-01-25 14:11:37		FIREBOAT LIBERTY		0.4 miles 233°	2025-01-28 18:30:18
AUGUST MOMENT		0.5 miles 304°	2025-01-20 17:30:37		338333194		0.5 miles 3°	2025-01-28 15:26:27

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.