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 KO4YZF-9 - show graphs
Comment: listing 146.520
Mic-E message: In service
Location: 37°04.38' N 78°00.34' W - locator FM07XB97HM - show map
1.1 km Southwest bearing 222° from Blackstone, Nottoway County, Virginia, United States [?]
15.3 km Southeast bearing 137° from Crewe, Nottoway County, Virginia, United States
72.0 km Southwest bearing 222° from Richmond, City of Richmond, Virginia, United States
144.0 km Northeast bearing 33° from Durham, Durham County, North Carolina, United States
Last position: 2025-07-12 21:31:10 UTC (24d 2h18m ago)
2025-07-12 17:31:10 EDT local time at Blackstone, United States [?]
Altitude: 144 m
Course: 249°
Speed: 0 km/h
Device: Yaesu: FTM-500D (rig)
Last path: KO4YZF-9>S7PT3X via W4RAT-5*,WIDE1*,qAR,AE4OK-1 (good)
Positions stored: 88
Other SSIDs: KO4YZF-5 KO4YZF-5 KO4YZF
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