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*
Web station KO4TSM-2 - show graphs
Comment: 146.55 at the Harwinton Fair
Location: 41°45.80' N 73°02.69' W - locator FN31LS43OE - show map
3.2 km Southeast bearing 118° from Northwest Harwinton, Litchfield County, Connecticut, United States [?]
7.6 km Southeast bearing 123° from Torrington, Litchfield County, Connecticut, United States
133.3 km Northeast bearing 35° from Manhattan, New York County, New York, United States
141.5 km Northeast bearing 34° from New York City, New York, United States
Last position: 2025-10-04 02:00:25 UTC (17d 16h9m ago)
2025-10-03 22:00:25 EDT local time at Northwest Harwinton, United States [?]
Altitude: 252 m
Speed: 0 km/h
Last path: KO4TSM-2>aprs.fi via aprsfi-iOS
Positions stored: 4
Other SSIDs: KO4TSM-9 KO4TSM-4
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