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 WY0F-4 - show graphs
Comment: 443.950MHz 146.520
Mic-E message: En route
Location: 26°10.88' N 97°40.82' W - locator EL16DE83IM - show map
1.9 km Southeast bearing 123° from Harlingen, Cameron County, Texas, United States [?]
7.7 km East bearing 107° from Palm Valley, Cameron County, Texas, United States
37.7 km Northwest bearing 332° from Heroica Matamoros, Tamaulipas, Mexico
61.1 km East bearing 80° from Reynosa, Tamaulipas, Mexico
Last position: 2025-10-25 19:08:20 UTC (12d 58m ago)
2025-10-25 14:08:20 CDT local time at Harlingen, United States [?]
Altitude: 8 m
Course: 87°
Speed: 7 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: WY0F-4>RV1P8X via qAR,N5JLR-1
Positions stored: 3387
Other SSIDs: WY0F-8 WY0F
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