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*
Web station KN4IOW - show graphs
Location: 38°53.68' N 77°00.28' W - locator FM18LV94KR - show map
2.7 km East bearing 91° from Washington, D. C., Washington, D.C., United States [?]
13.6 km Southwest bearing 232° from New Carrollton, Prince George's County, Maryland, United States
14.7 km Southwest bearing 237° from Lanham, Prince George's County, Maryland, United States
55.5 km Southwest bearing 218° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-08-04 14:24:59 UTC (11d 9h52m ago)
2025-08-04 10:24:59 EDT local time at Washington, D. C., United States [?]
Speed: 0 km/h
Last path: KN4IOW>aprs.fi via aprsfi-iOS
Positions stored: 810
Other SSIDs: KN4IOW-7 KN4IOW-11 KN4IOW-i
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