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 KM4RZT-9 - show graphs
Comment: Testing truck antenna.
Location: 42°47.06' N 71°16.41' W - locator FN42IS78EF - show map
3.1 km Southeast bearing 126° from Windham, Rockingham County, New Hampshire, United States [?]
5.9 km West bearing 266° from Salem, Rockingham County, New Hampshire, United States
50.4 km North bearing 340° from Boston, Suffolk County, Massachusetts, United States
53.3 km North bearing 340° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2025-01-25 00:27:44 UTC (24d 23h12m ago)
2025-01-24 19:27:44 EST local time at Windham, United States [?]
Speed: 11 km/h
Device: aprs.fi: iPhone/iPad app (app, ios)
Last path: KM4RZT-9>APFII0 via WIDE1-1,WIDE2-2,qAO,KB1TSO (good)
Positions stored: 13
Other SSIDs: KM4RZT-H KM4RZT-7 KM4RZT-4 KM4RZT-i KM4RZT-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