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 WC4J-14 - show graphs
Comment: NCC-1701A
Mic-E message: In service
Last beacon: WC4J/R
Location: 38°37.76' N 77°40.30' W - locator FM18DP91JA - show map
11.1 km Southwest bearing 226° from Nokesville, Prince William County, Virginia, United States [?]
16.8 km Southwest bearing 210° from Linton Hall, Prince William County, Virginia, United States
62.5 km Southwest bearing 242° from Washington, D. C., Washington, D.C., United States
117.4 km Southwest bearing 232° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-08-30 22:21:59 UTC (1m21s ago)
2025-08-30 18:21:59 EDT local time at Nokesville, United States [?]
Altitude: 84 m
Course:
Speed: 0 km/h
Device: Kenwood: TM-D700 (rig)
Last path: WC4J-14>S8SW7V via WIDE1-1,WIDE2-1,qAR,W4VA-13 (good)
Positions stored: 136191
Other SSIDs: WC4J WC4J-9 WC4J-8
APRS digipeater – Statistics for 2025-08:
Stations heard directly: 10 on radio path – show map
Last heard a station directly: 2025-08-09 15:35:57 UTC (21d 6h47m ago)
Position packets heard directly: 41 on radio path
Stations which heard WC4J-14 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
Stations heard directly by WC4J-14
callsign pkts first heard - UTC last heard longest (rx => tx) longest at - UTC

Only stations from which a position packet has been heard are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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