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 KC1OED C - show graphs
Source callsign: KC1OED-S
Comment: 2m Voice 144.50000MHz +0.0000MHz
Location: 42°26.00' N 71°36.47' W - locator FN42EK73BX - show map
5.7 km Northwest bearing 324° from Hudson, Middlesex County, Massachusetts, United States [?]
10.7 km Northwest bearing 331° from Marlborough, Middlesex County, Massachusetts, United States
45.7 km West bearing 281° from Boston, Suffolk County, Massachusetts, United States
47.2 km West bearing 284° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2025-03-05 21:12:10 UTC (6h49m ago)
2025-03-05 16:12:10 EST local time at Hudson, United States [?]
Altitude: 3 m
Last path: KC1OED-S>APDG01 via TCPIP*,qAC,KC1OED-GS
Positions stored: 1
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