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*
APRS object GRRSMWD0A - show graphs
Source callsign: GRRSMW
Comment: MARINE }j0]HNHRHRSLSKQJNJKKIKHMHN{D00AA
Location: 42°44.70' N 86°35.40' W - locator EN62QR98ET - show map
33.7 km West bearing 290° from Douglas, Allegan County, Michigan, United States [?]
38.3 km West bearing 261° from Beechwood, Ottawa County, Michigan, United States
112.0 km East bearing 106° from Milwaukee, Milwaukee County, Wisconsin, United States
132.2 km Northeast bearing 41° from Chicago, Cook County, Illinois, United States
Last position: 2025-05-17 02:47:59 UTC (217d 14h57m ago)
2025-05-16 22:47:59 EDT local time at Douglas, United States [?]
Course: 66°
Speed: 76 km/h
Last path: GRRSMW>APRS via qAO,AE5PL-WX
Positions stored: 1
Others sourced by GRRSMW: GRRSMW10A GRRSMW30A GRRSMW40A GRRSMW50A GRRSMW60A GRRSMW70A GRRSMW80A GRRSMW90A GRRSMWA0A GRRSMWa1A GRRSMWB0A GRRSMWb1A GRRSMWC0A GRRSMWc1A GRRSMWE0A GRRSMWF0A GRRSMWG0A GRRSMWH0A GRRSMWI0A GRRSMWJ0A GRRSMWK0A GRRSMWL0A GRRSMWM0A GRRSMWN0A GRRSMWO0A GRRSMWP0A GRRSMWQ0A GRRSMWR0A GRRSMWS0A GRRSMWT0A GRRSMWU0A GRRSMWV0A GRRSMWW1A GRRSMWX1A GRRSMWY1A GRRSMWZ1A
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.
User guide · 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