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 K4HCO-9 - show graphs
Comment: 146.520MHz
Location: 38°54.55' N 78°10.08' W - locator FM08VV98UE - show map
2.5 km Southeast bearing 114° from Front Royal, Warren County, Virginia, United States [?]
6.0 km West bearing 254° from Apple Mountain Lake, Warren County, Virginia, United States
92.0 km West bearing 272° from Arlington, Arlington County, Virginia, United States
97.9 km West bearing 271° from Washington, D. C., Washington, D.C., United States
Last position: 2025-07-28 22:45:36 UTC (1m43s ago)
2025-07-28 18:45:36 EDT local time at Front Royal, United States [?]
Altitude: 185 m
Course: 276°
Speed: 33 km/h
Last telemetry: 2023-06-18 17:18:36 UTC (771d 5h28m ago) – show telemetry
Ch 1: 410, Ch 2: 630, Ch 3: 0, Ch 4: 0, Ch 5: 0
Device: Open Source: APRSdroid (app, Android)
Last path: K4HCO-9>APDR16 via TCPIP*,qAC,T2SJC
Positions stored: 70644
Other SSIDs: K4HCO-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 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