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*
Web station W9TDP-9 - show graphs
Comment: aprs.fi iOS
Location: 43°04.63' N 89°27.97' W - locator EN53GB48BM - show map
1.0 miles West bearing 269° from Shorewood Hills, Dane County, Wisconsin, United States [?]
3.3 miles West bearing 275° from Madison, Dane County, Wisconsin, United States
58.8 miles North bearing 341° from Rockford, Winnebago County, Illinois, United States
Last position: 2024-04-23 20:11:09 EDT (38d 22h59m ago)
2024-04-23 19:11:09 CDT local time at Shorewood Hills, United States [?]
Course: 24°
Speed: 0 MPH
Last path: W9TDP-9>aprs.fi via aprsfi-iOS
Positions stored: 7485
Stations near current position of W9TDP-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KC9TS1.3 miles 175°2024-05-28 21:17:57 KC9TS-91.3 miles 175°2024-06-01 10:24:48
KD9YXD1.6 miles 192°2024-05-07 10:07:06 KD5TQE-102.2 miles 257°2024-06-01 19:08:56
KD9DOE-92.7 miles 154°2024-06-01 18:46:21 KD9DOE-102.7 miles 153°2024-06-01 19:08:01
WT9M-52.8 miles 97°2024-06-01 19:02:39 KG9MG-93.4 miles 106°2024-05-18 17:08:00
KD9MFZ-i4.3 miles 96°2024-05-30 15:15:36 KF9AQ-54.5 miles 212°2024-05-21 17:30:31
KF9AQ4.5 miles 212°2024-05-23 10:31:20 N9EM-54.9 miles 84°2024-06-01 19:08:58
KD9YTA-46.2 miles 71°2024-05-21 18:36:41 MKXTORQ0A6.6 miles 204°2024-05-21 21:32:52
N9DRW6.6 miles 259°2024-06-01 19:02:05 GW16276.8 miles 312°2024-06-01 19:05:52
W9DGI-96.8 miles 39°2024-06-01 13:01:48 KC9TTF-i6.8 miles 297°2024-05-09 17:19:28
KC9UNZ-56.9 miles 46°2024-05-15 20:26:22 N6WIS-97.0 miles 59°2024-05-31 11:19:08
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