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 WA0TOP-4 - show graphs
Map loading...
Comment: 13.5V 27C
Location: 38°46.36' N 90°29.91' W - locator EM48SS05EK - show map - static map
7.1 miles East bearing 105° from Saint Peters, Saint Charles County, Missouri, United States [?]
8.6 miles East bearing 78° from Cottleville, Saint Charles County, Missouri, United States
19.1 miles Northwest bearing 302° from Saint Louis, City of Saint Louis, Missouri, United States
84.5 miles Southwest bearing 213° from Springfield, Sangamon County, Illinois, United States
Last position: 2016-06-14 15:52:30 EDT (253d 6h54m ago)
2016-06-14 14:52:30 CDT local time at Saint Peters, United States [?]
Speed: 11 MPH
Last telemetry: 2016-06-14 15:51:57 EDT (253d 6h55m ago) – show telemetry
Ch 1: 153, Ch 2: 173, Ch 3: 1, Ch 4: 0, Ch 5: 10
 1     2     3     4     5     6     7     8 
Device: Argent Data Systems: OpenTracker (tracker)
Last path: WA0TOP-4>APOT21 via LUKRHB*,qAR,N0DSS (good)
Positions stored: 663
Other SSIDs: WA0TOP WA0TOP-1 WA0TOP-10 WA0TOP-6
Stations near current position of WA0TOP-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
W0TSN-90.8 miles 204°2017-02-17 13:04:02 W0TSN0.9 miles 200°2017-02-22 21:40:47
EW67661.0 miles 257°2017-02-22 21:44:02 444.65+1.3 miles 302°2017-02-21 16:27:01
145.33-1.3 miles 304°2017-02-21 16:22:01 ID51A1.9 miles 245°2017-02-12 18:16:43
N0SO-71.9 miles 343°2017-02-14 23:24:39 KD0PJG2.0 miles 14°2017-02-22 21:41:08
KG0YJ-62.9 miles 267°2017-02-22 21:00:07 KA0VEL-53.0 miles 240°2017-01-26 14:08:25
KA0VEL-103.0 miles 240°2017-02-20 09:04:20 KA0VEL-43.0 miles 241°2017-02-21 22:15:48
KA0VEL-153.0 miles 241°2017-02-21 21:16:13 KA0VEL3.0 miles 241°2017-02-16 11:29:54
KB1MGH-93.1 miles 305°2017-02-22 21:41:53 CW21493.2 miles 241°2017-02-22 21:40:32
W0BJ3.3 miles 310°2017-02-22 21:46:30 W4MWX3.3 miles 11°2017-02-15 22:37:42
W4MWX-103.3 miles 11°2017-02-15 22:04:39 W4MWX-53.3 miles 11°2017-02-21 16:48:01
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