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 W3DFP-9 - show graphs
Comment: 462.650MHz T192 +500 UNIT 687, HOWARD CO. REACT, MARYLAND
Mic-E message: In service
Location: 39°19.64' N 76°50.23' W - locator FM19NH98MN - show map
5.7 km Southwest bearing 219° from Randallstown, Baltimore County, Maryland, United States [?]
6.2 km West bearing 248° from Milford Mill, Baltimore County, Maryland, United States
19.8 km West bearing 282° from Baltimore, City of Baltimore, Maryland, United States
51.0 km North bearing 20° from Washington, D. C., Washington, D.C., United States
Last position: 2025-07-25 23:01:34 UTC (7h57m ago)
2025-07-25 19:01:34 EDT local time at Randallstown, United States [?]
Altitude: 150 m
Course: 327°
Speed: 44 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: W3DFP-9>S9QY6T via N3KTX-1,WIDE1*,qAR,N3EMC-10 (good)
Positions stored: 39143
Other SSIDs: W3DFP-7
Stations which heard W3DFP-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