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 KC3JSM - show graphs
Comment: ,StrTrk,153,9,1.49V,-46C,9127Pa,
Location: 39°49.52' N 76°19.91' W - locator FM19UT08EB - show map
8.0 km Northeast bearing 23° from Susquehanna Trails, York County, Pennsylvania, United States [?]
12.9 km South bearing 174° from Conestoga, Lancaster County, Pennsylvania, United States
64.1 km North bearing 22° from Baltimore, City of Baltimore, Maryland, United States
100.6 km West bearing 262° from Philadelphia, Philadelphia County, Pennsylvania, United States
Last position: 2025-06-06 16:31:31 UTC (29d 23h33m ago)
2025-06-06 12:31:31 EDT local time at Susquehanna Trails, United States [?]
Altitude: 17118 m
Course: 63°
Speed: 37 km/h
Last path: KC3JSM>CQ via K8YSE-1*,WIDE2*,qAR,NV8P-1 (seriously-bad)
This station appears to be flying at high altitude and using digipeaters, which causes serious congestion in the APRS network. The tracker should be configured to only use digipeaters when at low altitude.
Positions stored: 7
Other SSIDs: KC3JSM-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