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 object ALZFG - show graphs
Source callsign: WA4KBM
Comment: K4LRG 10-Mile Turn Around Loudoun County Fa
Location: 39°07.92' N 77°36.43' W - locator FM19ED71DQ - show map
9.3 km East bearing 93° from Purcellville, Loudoun County, Virginia, United States [?]
19.7 km Southeast bearing 119° from Shannondale, Jefferson County, West Virginia, United States
55.9 km Northwest bearing 298° from Washington, D. C., Washington, D.C., United States
87.5 km West bearing 259° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-05-05 23:05:47 UTC (8d 12h33m ago)
2025-05-05 19:05:47 EDT local time at Purcellville, United States [?]
Last path: WA4KBM>APX221 via TCPIP*,qAC,SIXTH
Positions stored: 2
Others sourced by WA4KBM: ALZHCA ALZLCC ALZLES ALZNCS ALZPCC ALZWAT
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