Mic-E message:	In service
Location:	38°50.46' N 77°21.32' W - locator FM18HU71IU - show map 3.3 miles Southeast bearing 132° from Greenbriar, Fairfax County, Virginia, United States [?] 4.0 miles East bearing 89° from Centreville, Fairfax County, Virginia, United States 17.5 miles West bearing 258° from Washington, D. C., Washington, D.C., United States 50.5 miles Southwest bearing 232° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2024-09-29 20:17:36 EDT (72d 19h13m ago) 2024-09-29 20:17:36 EDT local time at Greenbriar, United States [?]
Course:	0°
Speed:	0 MPH
Device:	Kenwood: TM-D710 (rig)
Last path:	W4SDM>S8UP4V via RS0ISS*,WIDE2-1,qAO,KD4ADC-2
Positions stored:	1
Other SSIDs:	W4SDM-9

callsign		distance	last heard - EST		callsign		distance	last heard - EST
W4SDM-9		1.5 miles 41°	2024-12-08 14:36:23		GW4289		1.8 miles 48°	2024-12-11 14:30:24
GW0066		1.9 miles 329°	2024-12-11 14:28:38		GW2831		2.3 miles 172°	2024-12-11 14:30:16
W4FMD-4		2.8 miles 76°	2024-12-11 12:16:36		FW6547		2.8 miles 348°	2024-12-11 14:26:55
DW4092		2.9 miles 57°	2024-12-11 14:15:24		DW4748		3.3 miles 264°	2024-12-11 14:16:01
KG4EXY-1		3.7 miles 245°	2024-12-11 14:29:34		EW1675		3.8 miles 246°	2024-12-11 14:30:02
CW4120		3.9 miles 124°	2024-12-11 14:30:06		FW2982		4.3 miles 23°	2024-12-11 14:29:50
KF4LWX		4.6 miles 304°	2024-12-11 14:14:50		KA3RQR-2		4.7 miles 51°	2024-12-11 14:11:40
KA3RQR		4.7 miles 51°	2024-12-11 14:29:51		N2HUC		4.8 miles 261°	2024-11-24 18:55:31
KK4ZUU-9		4.9 miles 255°	2024-11-24 18:46:15		APBT62-7		4.9 miles 140°	2024-12-06 16:34:02
FW7729		4.9 miles 49°	2024-12-11 14:25:57		KW4UJ B		5.0 miles 67°	2024-12-11 14:22:01

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.