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 WA4JYJ-9 - show graphs
Comment: 146.520MHz ToffWA4JYJ mobile
Mic-E message: Off duty
Location: 29°24.57' N 95°16.69' W - locator EL29IJ68OG - show map
3.7 km Southwest bearing 244° from Alvin, Brazoria County, Texas, United States [?]
9.7 km Southeast bearing 127° from Manvel, Brazoria County, Texas, United States
32.0 km South bearing 192° from Pasadena, Harris County, Texas, United States
40.2 km South bearing 168° from Houston, Harris County, Texas, United States
Last position: 2026-01-14 03:01:21 UTC (22d 56m ago)
2026-01-13 21:01:21 CST local time at Alvin, United States [?]
Altitude: 2 m
Course: 220°
Speed: 67 km/h
Device: Kenwood: TM-D710 (rig)
Last path: WA4JYJ-9>RYRT5W via KA5AXV-10*,WIDE2-1,qAR,KA5WMY-11 (good)
Positions stored: 252
Other SSIDs: WA4JYJ-7 WA4JYJ WA4JYJ-i
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