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 W4JXA-5 - show graphs
Comment: W4JXA@Sheila's place
Location: 38°58.35' N 77°26.85' W - locator FM18GX63HJ - show map
7.5 km Northeast bearing 40° from South Riding, Loudoun County, Virginia, United States [?]
8.8 km North bearing 351° from Chantilly, Fairfax County, Virginia, United States
36.6 km West bearing 284° from Washington, D. C., Washington, D.C., United States
80.2 km Southwest bearing 244° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-06-15 01:14:44 UTC (14s ago)
2025-06-14 21:14:44 EDT local time at South Riding, United States [?]
Altitude: 49 m
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.2 m.
Course: 248°
Speed: 22 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: W4JXA-5>APDR16 via TCPIP*,qAC,T2BIO
Positions stored: 63487
Other SSIDs: W4JXA W4JXA-10
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