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 object W9MJM B - show graphs
Map loading...
Source callsign: W9MJM-S
Comment: 440 Voice 445.87500MHz +0.0000MHz
Location: 41°48.04' N 88°08.46' W - locator EN51WT32BD - show map - static map
4.3 miles South bearing 166° from Winfield, DuPage County, Illinois, United States [?]
4.8 miles South bearing 201° from Wheaton, DuPage County, Illinois, United States
9.6 miles East bearing 73° from Aurora, Kane County, Illinois, United States
25.5 miles West bearing 262° from Chicago, Cook County, Illinois, United States
Last position: 2017-09-29 06:00:38 EDT (233d 7h59m ago)
2017-09-29 05:00:38 CDT local time at Winfield, United States [?]
Last path: W9MJM-S>APDG01 via TCPIP*,qAC,W9MJM-GS
Positions stored: 2
Stations near current position of W9MJM B - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
CW71641.2 miles 131°2018-05-20 13:55:02 W9TAM1.8 miles 170°2018-05-18 01:03:40
W9KJ-102.0 miles 155°2018-04-29 20:53:14 DW40632.2 miles 311°2018-05-20 13:56:30
W9WKM2.7 miles 231°2018-05-20 13:53:35 K9CDA-Y3.1 miles 166°2018-04-23 17:29:34
K9CDA3.1 miles 167°2018-05-15 23:09:02 K9CDA B3.1 miles 167°2018-04-21 15:19:08
K9CDA-B3.1 miles 167°2018-04-21 15:19:18 K9CDA-R3.1 miles 167°2018-05-15 23:08:26
NE9MA-103.9 miles 243°2018-05-20 13:30:27 FW22614.1 miles 42°2018-05-20 13:55:05
EW22534.2 miles 179°2018-05-20 14:00:07 N9NYX C4.2 miles 13°2018-05-16 07:43:48
N9NYX-C4.2 miles 13°2018-05-16 07:43:58 W9DSR-74.6 miles 234°2018-05-12 11:47:54
DW19384.6 miles 8°2018-05-20 13:46:06 N9ABF-Y4.6 miles 8°2018-05-08 16:35:15
K9RZ4.6 miles 43°2018-05-20 13:33:47 K9RZ-94.6 miles 43°2018-05-19 19:26:20
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