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 KM4ADO-9 - show graphs
Comment: 147.300MHzUoice Alert when in service.
Mic-E message: En route
Location: 38°48.09' N 77°14.05' W - locator FM18JT12VI - show map
6.2 km South bearing 159° from Mantua, Fairfax County, Virginia, United States [?]
8.1 km South bearing 184° from Merrifield, Fairfax County, Virginia, United States
20.0 km Southwest bearing 239° from Washington, D. C., Washington, D.C., United States
76.4 km Southwest bearing 225° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-05-04 22:09:25 UTC (80d 22h19m ago)
2024-05-04 18:09:25 EDT local time at Mantua, United States [?]
Altitude: 68 m
Course: 100°
Speed: 19 km/h
Device: Kenwood: TM-D710 (rig)
Last path: KM4ADO-9>SX4X0Y via WIDE1-1,WIDE2-2,qAO,KS4E-5 (good)
Positions stored: 3607
Other SSIDs: KM4ADO-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