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 WV4M - show graphs
Map loading...
Location: 38°39.67' N 77°27.65' W - locator FM18GP48QQ - show map - static map
2.1 miles Northwest bearing 324° from Independent Hill, Prince William County, Virginia, United States [?]
5.1 miles South bearing 198° from Buckhall, Prince William County, Virginia, United States
28.0 miles Southwest bearing 235° from Washington, D. C., Washington, D.C., United States
62.9 miles Southwest bearing 227° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2018-05-16 11:17:31 EDT (127d 46m ago)
2018-05-16 11:17:31 EDT local time at Independent Hill, United States [?]
Altitude: 408 ft
Course: 321°
Speed: 2 MPH
Last path: WV4M>API31 via DSTAR*,qAS,K5HUM-G (good)
Positions stored: 581
Stations near current position of WV4M - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
5061.1 miles 109°2018-09-20 12:01:04 506 #1.1 miles 109°2018-09-20 12:01:08
KK4JFK B1.1 miles 172°2018-09-20 11:55:30 KK4JFK-B1.1 miles 172°2018-09-20 11:55:40
KK4JFK-N1.1 miles 172°2018-09-20 11:56:02 KL3ZE-91.3 miles 84°2018-09-19 14:29:29
KF4UQS-151.6 miles 209°2018-09-20 11:45:33 WD4HRO1.8 miles 221°2018-09-17 20:52:54
K9VEG1.8 miles 5°2018-09-20 11:37:47 KG4LAA-152.2 miles 139°2018-09-20 07:08:48
EW51672.3 miles 46°2018-09-20 11:55:50 N3HF-12.8 miles 55°2018-09-20 12:00:56
5073.2 miles 8°2018-09-20 11:52:34 EW40743.3 miles 38°2018-09-20 12:01:39
KN4FYR B3.9 miles 80°2018-09-19 03:45:39 KN4FYR-B3.9 miles 80°2018-09-19 03:45:49
KN4FYR C3.9 miles 80°2018-09-20 11:44:09 KN4FYR-C3.9 miles 80°2018-09-20 11:44:19
KN4FYR-DP3.9 miles 80°2018-09-20 12:03:05 KN4FYR-23.9 miles 80°2018-09-19 06:23:17
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