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 KN4JEQ-9 - show graphs
Mic-E message: Off duty
Location: 38°52.20' N 77°09.07' W - locator FM18KU18UT - show map
8.6 km Northeast bearing 32° from North Springfield, Fairfax County, Virginia, United States [?]
9.5 km North bearing 19° from Springfield, Fairfax County, Virginia, United States
10.3 km West bearing 254° from Washington, D. C., Washington, D.C., United States
65.9 km Southwest bearing 225° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2026-01-23 23:01:32 UTC (8d 22h46m ago)
2026-01-23 18:01:32 EST local time at North Springfield, United States [?]
Altitude: 104 m
Course: 296°
Speed: 2 km/h
Device: Yaesu: FTM-510D (rig)
Last path: KN4JEQ-9>SXUR2P via WIDE1-1,WIDE2-1,qAR,KM4DC-2 (good)
Positions stored: 73
Other SSIDs: KN4JEQ-10 KN4JEQ-7
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