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 W4HBO-10 - show graphs
Comment: Mobile
Location: 34°41.97' N 86°38.63' W - locator EM64QQ27RV - show map
1.8 km North bearing 11° from Redstone Arsenal, Madison County, Alabama, United States [?]
6.3 km Southwest bearing 237° from Huntsville, Madison County, Alabama, United States
32.7 km East bearing 71° from Decatur, Morgan County, Alabama, United States
Last position: 2026-02-19 18:40:33 UTC (2d 3h59m ago)
2026-02-19 12:40:33 CST local time at Redstone Arsenal, United States [?]
Altitude: 199 m
Course: 360°
Speed: 0 km/h
Last path: W4HBO-10>APN000 via WIDE2-1,qAR,N8DEU-7 (good)
Positions stored: 117
Other SSIDs: W4HBO-6 W4HBO-1 W4HBO-4 W4HBO-3 W4HBO-2 W4HBO-11 W4HBO-15 W4HBO
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