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 KM4PSB - show graphs
Map loading...
Location: 38°50.12' N 77°07.49' W - locator FM18KU50AL - show map - static map
1.1 miles South bearing 166° from Baileys Crossroads, Fairfax County, Virginia, United States [?]
3.3 miles South bearing 199° from Arlington, Arlington County, Virginia, United States
6.3 miles Southwest bearing 229° from Washington, D. C., Washington, D.C., United States
41.7 miles Southwest bearing 221° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2017-02-26 14:47:16 EST (118d 7h48m ago)
2017-02-26 14:47:16 EST local time at Baileys Crossroads, United States [?]
Altitude: 242 ft
Last path: KM4PSB>APNKMX via WIDE2-2,qAR,K7BC-6 (good)
Positions stored: 25
Stations near current position of KM4PSB - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KM4EPR-90.7 miles 164°2017-06-10 13:53:36 W4HFH A1.4 miles 130°2017-06-24 23:24:28
W4HFH AD1.4 miles 130°2017-06-24 23:24:28 W4HFH C1.4 miles 130°2017-06-24 23:24:28
W4HFH B1.4 miles 130°2017-06-24 23:24:28 W4HFH-A1.4 miles 130°2017-06-24 23:24:13
W4HFH-B1.4 miles 130°2017-06-24 23:24:13 W4HFH-C1.4 miles 130°2017-06-24 23:24:13
KI4DHW-101.6 miles 360°2017-06-24 23:08:50 N8IK-91.7 miles 177°2017-06-22 19:14:46
N3IJW1.8 miles 208°2017-06-24 23:22:28 N3IJW-71.8 miles 211°2017-05-26 14:47:53
CW88381.9 miles 58°2017-06-24 23:33:32 CW62941.9 miles 134°2017-06-24 23:32:06
W4DSF-92.1 miles 217°2017-06-19 16:28:42 DW81062.3 miles 173°2017-06-24 23:32:06
KM4GML-92.3 miles 160°2017-06-24 22:24:51 KM4LLF-72.6 miles 11°2017-06-04 16:02:04
KK6QOY3.0 miles 189°2017-06-09 23:20:49 ALXTest3.2 miles 116°2017-06-24 22:27:40
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.
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