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 station AF1SL-9 - show graphs
Comment: Quincy Rptr 146.67
Location: 42°14.96' N 70°55.18' W - locator FN42MF99PU - show map
2.6 km West bearing 289° from Hingham, Plymouth County, Massachusetts, United States [?]
3.6 km Northeast bearing 28° from Weymouth, Norfolk County, Massachusetts, United States
14.2 km Southeast bearing 131° from South Boston, Suffolk County, Massachusetts, United States
16.7 km Southeast bearing 136° from Boston, Suffolk County, Massachusetts, United States
Last position: 2026-01-13 18:26:47 UTC (23d 15h ago)
2026-01-13 13:26:47 EST local time at Hingham, United States [?]
Course: 87°
Speed: 48 km/h
Last path: AF1SL-9>APN000 via WIDE1-1,WIDE2-1,qAR,W1XM (good)
Positions stored: 3005
Other SSIDs: AF1SL-B AF1SL AF1SL-7
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