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 W4PIO-5 - show graphs
Map loading...
Comment: w4pio@arrl.net
Location: 38°42.35' N 77°08.82' W - locator FM18KQ29IJ - show map - static map
0.4 miles South bearing 188° from Fort Belvoir, Fairfax County, Virginia, United States [?]
1.1 miles Southwest bearing 225° from Woodlawn, Fairfax County, Virginia, United States
14.4 miles Southwest bearing 205° from Washington, D. C., Washington, D.C., United States
49.5 miles Southwest bearing 216° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2017-04-11 12:57:15 EDT (102d 17h46m ago)
2017-04-11 12:57:15 EDT local time at Fort Belvoir, United States [?]
Altitude: 806 ft
Course: 126°
Speed: 4 MPH
Device: Open Source: APRSdroid (app, Android)
Last path: W4PIO-5>APDR13 via TCPIP*,qAC,T2UK
Positions stored: 3
Other SSIDs: W4PIO
Stations near current position of W4PIO-5 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KDAA2.1 miles 291°2017-07-13 20:08:16 MVARC-FD2.5 miles 213°2017-06-26 02:38:59
Base Station3.5 miles 18°2017-07-23 06:05:21 KK4STG B3.9 miles 12°2017-07-23 06:37:20
KK4STG-B3.9 miles 12°2017-07-23 06:37:30 K4RT-54.0 miles 15°2017-07-20 17:17:06
IRLP-46915.0 miles 46°2017-07-23 05:52:47 W9TCE-95.0 miles 2°2017-07-22 16:18:27
KY1O-95.3 miles 339°2017-07-22 14:52:25 KY1O5.3 miles 338°2017-07-23 03:46:39
NA5B5.6 miles 319°2017-06-29 00:03:06 KA6AKH5.6 miles 75°2017-06-29 20:14:45
KG4URW5.7 miles 243°2017-07-21 16:26:00 K7BC-105.8 miles 325°2017-07-12 08:57:51
K1DSP-95.9 miles 37°2017-07-21 20:33:54 K2UX-16.2 miles 6°2017-07-23 05:52:05
KC8KHL-16.4 miles 10°2017-07-20 08:30:01 K7BC-56.6 miles 308°2017-07-08 16:15:17
K7BC6.6 miles 308°2017-07-23 06:43:12 K7BC-66.6 miles 308°2017-07-23 06:43:12
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