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 W4TTU-9 - show graphs
Comment: /TinyTrak4 Alpha
Mic-E message: Off duty
Location: 41°41.74' N 91°36.78' W - locator EN41EQ66KX - show map
6.1 km South bearing 192° from North Liberty, Johnson County, Iowa, United States [?]
15.8 km Southwest bearing 219° from Solon, Johnson County, Iowa, United States
34.8 km South bearing 176° from Cedar Rapids, Linn County, Iowa, United States
88.1 km West bearing 283° from Davenport, Scott County, Iowa, United States
Last position: 2025-10-19 22:11:32 UTC (2h ago)
2025-10-19 17:11:32 CDT local time at North Liberty, United States [?]
Altitude: 233 m
Course: 81°
Speed: 0 km/h
Last path: W4TTU-9>TQTQ7T via K0HAM-10,WIDE1*,WIDE2-1,qAR,N0RXD-2 (good)
Positions stored: 62667
Other SSIDs: W4TTU-7 W4TTU-1 W4TTU-2 W4TTU-11 W4TTU W4TTU-10
Last heard a station directly: 2025-07-11 17:31:35 UTC (100d 6h40m ago)
Stations which heard W4TTU-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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