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 KC1RP-7 - show graphs
Comment: 146.520MHz me L
Location: 42°26.91' N 71°30.64' W - locator FN42FK87RP - show map
7.6 km Southwest bearing 238° from Acton, Middlesex County, Massachusetts, United States [?]
11.2 km South bearing 195° from Littleton Common, Middlesex County, Massachusetts, United States
38.3 km West bearing 285° from Boston, Suffolk County, Massachusetts, United States
40.0 km West bearing 289° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2025-12-16 02:46:07 UTC (11d 7h43m ago)
2025-12-15 21:46:07 EST local time at Acton, United States [?]
Device: Unknown: Unknown
Last path: KC1RP-7>APRS via WIDE1,qAS,KC1RP (good)
Positions stored: 2
Other SSIDs: KC1RP-2 KC1RP-5 KC1RP-3 KC1RP-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