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 KD9YTA-4 - show graphs
Location: 43°06.42' N 89°21.05' W - locator EN53HC75VQ - show map
1.6 miles Southeast bearing 118° from Maple Bluff, Dane County, Wisconsin, United States [?]
3.5 miles Northeast bearing 47° from Madison, Dane County, Wisconsin, United States
73.0 miles West bearing 274° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position: 2024-05-21 18:36:41 EDT (24d 19h32m ago)
2024-05-21 17:36:41 CDT local time at Maple Bluff, United States [?]
Altitude: 255 ft
Course: 316°
Speed: 12 MPH
Last path: KD9YTA-4>APAT81-1 via WT9M-5,WIDE1*,WIDE2-1,qAR,KC9IFF-1 (good)
Positions stored: 12
Other SSIDs: KD9YTA-3 KD9YTA-7
Stations near current position of KD9YTA-4 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
W9CBJ-91.0 miles 90°2024-06-13 18:27:02 N9EM-51.9 miles 211°2024-06-15 14:07:49
SPCTOA79P2.0 miles 115°2024-05-21 20:24:18 KB9TEN2.8 miles 38°2024-06-15 13:53:25
KD9MFZ-i2.9 miles 211°2024-05-30 15:15:36 EW60303.0 miles 44°2024-06-15 14:00:55
FW36203.4 miles 160°2024-06-15 14:08:53 K9FYW-93.5 miles 55°2024-06-15 10:26:10
W9DGI-93.6 miles 335°2024-06-08 18:10:16 W9CBJ-53.7 miles 342°2024-06-09 18:52:05
WC9AAG-103.8 miles 51°2024-06-15 13:45:21 WT9M-53.9 miles 232°2024-06-15 14:03:47
KG9MG-93.9 miles 220°2024-05-18 17:08:00 KC9NCC-94.4 miles 161°2024-06-15 13:59:18
KD9AER5.3 miles 178°2024-06-15 14:08:14 MKXSVRI1A5.5 miles 164°2024-05-22 00:02:52
WB9ROK-95.9 miles 236°2024-06-07 16:56:48 KD9DOE-96.4 miles 224°2024-06-15 11:12:46
KD9DOE-106.4 miles 226°2024-06-15 13:55:36 FW05166.4 miles 122°2024-06-14 09:30:16
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