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 W4FMD-4 - show graphs
Map loading...
Comment: Mobile
Mic-E message: In service
Location: 38°51.01' N 77°18.29' W - locator FM18IU34KA - show map - static map
501.7 yards North bearing 17° from Fairfax, City of Fairfax, Virginia, United States [?]
2.5 miles West bearing 264° from Mantua, Fairfax County, Virginia, United States
14.8 miles West bearing 258° from Washington, D. C., Washington, D.C., United States
48.0 miles Southwest bearing 231° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2020-11-27 11:46:13 EST (8d 5h52m ago)
2020-11-27 11:46:13 EST local time at Fairfax, United States [?]
Altitude: 430 ft
Course: 171°
Speed: 0 MPH
Device: Kenwood: TM-D700 (rig)
Last path: W4FMD-4>S8UQ0Q via KV3B-1,WIDE1,W4KEL-12,WIDE2*,qAR,W4KEL-12 (good)
Positions stored: 21824
Stations near current position of W4FMD-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
KM4LHZ B307.5 yards 9°2020-12-02 11:24:14 KM4LHZ-B307.5 yards 9°2020-12-02 11:24:24
WU6R B506.4 yards 196°2020-12-05 15:48:46 WU6R-B506.4 yards 196°2020-12-05 17:32:00
DW40921.0 miles 342°2020-12-05 16:30:09 K4JWT1.3 miles 354°2020-11-24 15:12:45
WU6R C2.0 miles 267°2020-12-05 16:00:55 WU6R-C2.0 miles 267°2020-12-05 16:01:05
W4DDT-52.3 miles 7°2020-11-06 15:47:52 KW4UJ B2.3 miles 55°2020-12-05 17:37:50
KW4UJ-B2.3 miles 55°2020-12-05 17:38:00 EW42352.5 miles 75°2020-12-05 17:33:30
KA3RQR-92.5 miles 22°2020-11-23 18:43:45 KA3RQR-72.5 miles 22°2020-11-30 14:42:23
KA3RQR-22.5 miles 22°2020-12-05 17:25:45 KA3RQR B2.5 miles 22°2020-12-05 17:23:20
KA3RQR-B2.5 miles 22°2020-12-05 17:23:30 FW77292.8 miles 20°2020-12-05 17:37:16
W4SDM-92.9 miles 267°2020-11-21 14:06:16 KH6JJD3.2 miles 112°2020-11-20 12:12:50
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