Source callsign:	KW4UJ-S
Comment:	440 Voice 445.91250MHz +0.0000MHz
Location:	38°52.14' N 77°16.20' W - locator FM18IU78ON - show map - static map 5.2 miles Northwest bearing 329° from Ravensworth, Fairfax County, Virginia, United States [?] 5.7 miles Northwest bearing 322° from North Springfield, Fairfax County, Virginia, United States 12.7 miles West bearing 262° from Washington, D. C., Washington, D.C., United States 45.7 miles Southwest bearing 231° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2020-03-29 21:11:42 EDT (12m36s ago) 2020-03-29 21:11:42 EDT local time at Ravensworth, United States [?]
Last path:	KW4UJ-S>APDG01 via TCPIP*,qAC,KW4UJ-GS
Positions stored:	7

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
KW4UJ-B		0.0 yards 0°	2020-03-29 21:11:52		EW4235		0.9 miles 142°	2020-03-29 21:20:08
KK4UYT B		1.2 miles 60°	2020-03-29 21:10:55		KK4UYT-B		1.2 miles 60°	2020-03-29 21:11:05
B		1.4 miles 319°	2020-03-22 09:08:37		KA3RQR B		1.4 miles 319°	2020-03-29 21:10:27
KA3RQR-B		1.4 miles 319°	2020-03-29 21:10:37		KA3RQR-9		1.4 miles 318°	2020-03-10 23:40:05
KA3RQR-2		1.4 miles 318°	2020-03-29 21:17:28		W4FMD-4		1.8 miles 232°	2020-03-24 11:19:08
EW9067		2.2 miles 7°	2020-03-29 21:22:25		DW4092		2.2 miles 260°	2020-03-29 19:01:28
WU6R B		2.5 miles 231°	2020-03-29 21:16:37		WU6R-B		2.5 miles 231°	2020-03-29 21:16:47
KM4SUY-7		2.7 miles 12°	2020-03-17 12:44:12		KH6JJD		2.7 miles 156°	2020-03-04 15:40:46
N4QX		2.8 miles 7°	2020-03-29 10:32:28		W4CLK-9		3.0 miles 201°	2020-03-12 11:11:25
W4CLK-7		3.0 miles 202°	2020-03-28 16:40:59		KH6JJD-10		3.2 miles 151°	2020-03-29 21:05:13

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.