callsign		distance	last heard - UTC		callsign		distance	last heard - UTC
SM4WJF-9		1.6 miles 160°	2012-02-13 16:24:08		SM4UNJ-9		3.0 miles 339°	2012-02-13 15:35:05
SM4UNJ-1		3.0 miles 339°	2012-02-14 05:20:55		sm4prq		8.8 miles 236°	2012-01-21 15:43:26
SK4DM-2		11.3 miles 323°	2012-02-14 05:24:38		SK4UG-2		16.5 miles 197°	2012-02-14 05:31:15
SK4BW-1		20.1 miles 28°	2012-02-14 05:34:06		SM4KUH-10		23.6 miles 25°	2012-02-08 08:36:54
CW5735		24.1 miles 54°	2012-02-14 05:33:32		SM4WOA-11		24.8 miles 21°	2012-01-21 16:28:38
SA4BFH-7		25.0 miles 59°	2012-01-29 12:31:12		SM4CKW-9		26.2 miles 30°	2012-02-13 14:22:40
SM4CKW		26.2 miles 30°	2012-02-13 18:01:39		SM4UZM-8		26.5 miles 20°	2012-02-13 17:09:20
SG4UZM-C		26.5 miles 20°	2012-02-03 21:46:37		SM4UZM-B		26.5 miles 20°	2012-02-02 19:56:40
SG4UZM-B		26.5 miles 20°	2012-02-14 05:09:04		SA4BFH-1		28.9 miles 71°	2012-02-12 12:00:20

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.