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 KC1YJO-4 - show graphs
Comment: https://aprsdroid.org/
Location: 42°18.56' N 71°42.85' W - locator FN42DH44HF - show map
1.5 km North bearing 356° from Shrewsbury, Worcester County, Massachusetts, United States [?]
6.1 km West bearing 259° from Northborough, Worcester County, Massachusetts, United States
54.0 km West bearing 264° from Boston, Suffolk County, Massachusetts, United States
54.7 km West bearing 267° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2026-01-22 14:25:05 UTC (10d 8h22m ago)
2026-01-22 09:25:05 EST local time at Shrewsbury, United States [?]
Device: Open Source: APRSdroid (app, Android)
Last path: KC1YJO-4>APDR17 via WIDE1-1,qAR,KC1YJO-10 (good)
Positions stored: 2
Other SSIDs: KC1YJO-1 KC1YJO-7 KC1YJO-10 KC1YJO-5 KC1YJO KC1YJO-11
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