Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel POROSITY - show graphs
Map loading...
Callsign: WDF7776
MMSI number: 367488010
Navigational status: Under way (engine) (0)
Vessel class: Pleasure (37)
Destination: CLASS B
Location: 48°32.00' N 123°00.30' W - locator CN88LM97JX - show map - static map
0.6 miles East bearing 97° from Friday Harbor, San Juan County, Washington, United States [?]
18.1 miles Northeast bearing 67° from Victoria, British Columbia, Canada
49.7 miles South bearing 174° from Vancouver, British Columbia, Canada
71.1 miles Northwest bearing 334° from Seattle, King County, Washington, United States
Last position: 2016-09-16 02:51:29 EDT (129d 5h49m ago)
2016-09-15 23:51:29 PDT local time at Friday Harbor, United States [?]
Course: 303° – heading 128°
Dimensions: length 19 m width 6 m draught 0.0 m
Last path: WDF7776>ais via KB7RYY
Positions stored: 1302
Stations near current position of POROSITY - show more
callsign distance last heard - EST      callsign distance last heard - EST
WSF SALISH0.4 miles 291°2017-01-22 11:54:07 PINTAIL0.4 miles 141°2017-01-21 05:24:42
REVELRY0.5 miles 118°2017-01-21 05:24:42 CLARITY0.5 miles 305°2017-01-21 05:09:42
N4RVE-100.6 miles 302°2017-01-16 12:29:18 N4RVE-50.6 miles 301°2017-01-20 13:53:31
KI7JBA-51.1 miles 229°2017-01-07 01:34:50 ki7jba-i1.1 miles 229°2017-01-07 01:21:05
K7KCA-34.2 miles 97°2017-01-23 07:35:19 ST. MICHAEL4.3 miles 109°2017-01-22 03:42:22
K7KCA-54.4 miles 118°2017-01-21 16:25:26 K7KCA-124.5 miles 101°2017-01-22 19:07:08
K7KCA-44.6 miles 100°2017-01-20 20:42:34 SENTINEL4.8 miles 31°2017-01-21 16:05:54
N7NIX-125.8 miles 125°2017-01-21 11:37:59 N7NIX-35.8 miles 126°2017-01-23 07:31:55
DW73716.0 miles 89°2017-01-23 07:34:46 KI7JBA6.4 miles 253°2017-01-11 21:00:44
KI7JBA-76.6 miles 268°2017-01-11 21:14:14 KF7FIT-107.2 miles 124°2017-01-23 07:11:25
About this site
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.
FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS