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 weather station W4KRL-15 - show graphs
Comment: 2001
Location: 38°50.40' N 77°28.80' W - locator FM18GU21JO - show map - static map
4.4 km West bearing 269° from Centreville, Fairfax County, Virginia, United States [?]
5.9 km Northwest bearing 332° from Yorkshire, Prince William County, Virginia, United States
38.9 km West bearing 261° from Washington, D. C., Washington, D.C., United States
90.1 km Southwest bearing 237° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2022-06-14 20:20:19 UTC (226d 20h30m ago)
2022-06-14 16:20:19 EDT local time at Centreville, United States [?]
Last WX report: 2022-06-14 20:15:29 UTC (226d 20h35m ago) – show weather charts
23.3 °C 51% 1011.8 mbar
Last telemetry: 2022-06-14 20:20:19 UTC (226d 20h30m ago) – show telemetry
Vcell: 3.885 Vdc, RSSI: -39 dBm, Light: 166.744 lux, Awake: 2.550 secs
 BME280_Fail     BH1750_Fail     Vcell_Low     Signal_Low 
Device: Unknown: Unknown
Last path: W4KRL-15>APRS via TCPIP*,qAC,T2SJC
Positions stored: 16
Other SSIDs: W4KRL-13 W4KRL-4 W4KRL-10
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 · AIS sites · Service status · Database statistics · Advertising on · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS