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 KM4HRR - show graphs
Comment: KM4HRR SharkRF 4 Pro
Location: 38°56.25' N 77°17.50' W - locator FM18IW45XA - show map
8.9 km Southeast bearing 114° from Herndon, Fairfax County, Virginia, United States [?]
11.0 km Southeast bearing 118° from Oak Grove, Loudoun County, Virginia, United States
22.6 km West bearing 282° from Washington, D. C., Washington, D.C., United States
70.5 km Southwest bearing 236° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-05-10 18:20:30 UTC (71d 13h48m ago)
2024-05-10 14:20:30 EDT local time at Herndon, United States [?]
Altitude: 0 m
Last path: KM4HRR>APOSE via TCPIP*,qAC,T2HUN
Positions stored: 1
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