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 KJ7CTJ-9 - show graphs
Comment: 147.165MHz T167 +060 Doug's Mobile, give a shout on .52!
Mic-E message: Off duty
Location: 38°54.45' N 77°45.35' W - locator FM18CV97HT - show map
8.2 km West bearing 273° from Bull Run Mountain Estates, Prince William County, Virginia, United States [?]
10.0 km Northeast bearing 62° from Marshall, Fauquier County, Virginia, United States
62.2 km West bearing 271° from Washington, D. C., Washington, D.C., United States
107.4 km Southwest bearing 247° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-06-23 23:12:04 UTC (1d 8h46m ago)
2025-06-23 19:12:04 EDT local time at Bull Run Mountain Estates, United States [?]
Altitude: 107 m
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course: 285°
Speed: 7 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: KJ7CTJ-9>SXUT4Z via KN4IJF-1*,WIDE1*,qAR,WC4J (good)
Positions stored: 28268
Other SSIDs: KJ7CTJ-7 kj7ctj-i KJ7CTJ
Stations which heard KJ7CTJ-9 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.
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