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 TDRSAG - show graphs
Map loading...
Mic-E message: In service
Location: 30°02.84' N 94°20.71' W - locator EM20TB81NI - show map - static map
0.6 miles West bearing 265° from China, Jefferson County, Texas, United States [?]
8.4 miles Southwest bearing 212° from Bevil Oaks, Jefferson County, Texas, United States
57.3 miles Northeast bearing 64° from Pasadena, Harris County, Texas, United States
64.0 miles East bearing 72° from Houston, Harris County, Texas, United States
Last position: 2016-05-01 15:31:20 EDT (302d 10h3m ago)
2016-05-01 14:31:20 CDT local time at China, United States [?]
Altitude: 30 ft
Course: 81°
Speed: 43 MPH
Last path: TDRSAG>S0PR8T via KE5RTI-1,KC5YSM-5*,WIDE2-1,qAR,WB5YDA-2 (good)
Positions stored: 54
Stations near current position of TDRSAG - show more
callsign distance last heard - EST      callsign distance last heard - EST
WB5YDA-159.3 miles 85°2017-02-28 00:26:31 K5RWL9.5 miles 88°2017-02-20 20:21:00
N6GCV-310.5 miles 101°2017-02-12 20:02:01 KB5GK11.3 miles 83°2017-02-27 13:56:49
DW361112.0 miles 48°2017-02-28 00:33:38 EW300312.2 miles 69°2017-02-28 00:29:58
KE5RTI12.2 miles 88°2017-02-24 14:15:36 KA5IQX-712.2 miles 78°2017-02-18 07:50:35
KF5LW-712.3 miles 53°2017-02-27 17:29:42 WB5YDA-1012.9 miles 39°2017-02-28 00:22:40
WB5YDA-913.1 miles 46°2017-02-06 17:46:52 WB5YDA-1413.8 miles 39°2017-02-24 21:55:35
WB5YDA-1213.9 miles 38°2017-02-24 21:40:57 KB5WIO-914.0 miles 41°2017-02-26 13:30:31
KC5YSM-514.9 miles 80°2017-02-28 00:33:30 KG5NMD-914.9 miles 38°2017-02-27 22:13:09
WW5CSA-515.5 miles 37°2017-02-26 22:34:48 WW5CSA-1015.5 miles 37°2017-02-08 21:43:06
WW5CSA-915.6 miles 38°2017-02-18 18:41:28 KG5BMX-917.2 miles 103°2017-02-28 00:21:40
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.
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