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 W1MAD - show graphs
Comment: D75A DSTAR VT
Location: 44°29.87' N 73°13.75' W - locator FN34JL29LL - show map
2.8 km Northwest bearing 331° from Burlington, Chittenden County, Vermont, United States [?]
3.5 km West bearing 282° from Winooski, Chittenden County, Vermont, United States
115.8 km South bearing 166° from Montréal, Montréal, Quebec, Canada
124.6 km South bearing 163° from Laval, Laval, Quebec, Canada
Last position: 2025-12-19 16:58:44 UTC (8d 22h5m ago)
2025-12-19 11:58:44 EST local time at Burlington, United States [?]
Altitude: 0 m
Device: SharkRF: openSPOT4 (gadget)
Last path: W1MAD>APOSB4 via TCPIP*,qAC,T2MEXICO
Positions stored: 401
Other SSIDs: W1MAD-7
APRS igate – Statistics for 2025-12:
Last heard a station directly: 2025-09-24 13:23:28 UTC (95d 1h40m ago)
Position packets sent to APRS-IS: 13 – show map
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