Comment:	济南黄河业余无线电
Location:	38°53.62' N 77°04.87' W - locator FM18LV04GL - show map 1.5 miles Northeast bearing 55° from Arlington, Arlington County, Virginia, United States [?] 2.4 miles West bearing 268° from Washington, D. C., Washington, D.C., United States 37.2 miles Southwest bearing 223° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2024-11-18 00:46:02 EST (1d 9h5m ago) 2024-11-18 00:46:02 EST local time at Arlington, United States [?]
Altitude:	180 ft
Course:	0°
Speed:	2 MPH
Device:	Open Source: APRSdroid (app, Android)
Last path:	BI4PMQ-7>APDR16 via TCPIP*,qAC,T2FINLAND
Positions stored:	50
Other SSIDs:	BI4PMQ BI4PMQ-9 BI4PMQ-R

callsign		distance	last heard - EST		callsign		distance	last heard - EST
KO4ZMC-10		0.5 miles 96°	2024-10-27 05:15:18		RCTAIL		0.7 miles 95°	2024-10-27 01:43:59
LEAD-10		0.9 miles 115°	2024-10-27 10:50:09		KK1ZZ		1.0 miles 266°	2024-10-30 20:45:55
LEAD-5		1.4 miles 129°	2024-10-27 07:12:20		LEAD		1.4 miles 130°	2024-10-27 03:24:50
KM4MLA-Y		1.5 miles 267°	2024-11-19 09:42:04		AC3H-9		1.5 miles 260°	2024-11-17 06:27:08
FW9822		1.5 miles 235°	2024-11-19 09:47:39		KC3PLT-1		1.6 miles 356°	2024-10-21 07:22:20
K4AF-6		2.1 miles 138°	2024-11-19 08:57:30		W4JJ		2.3 miles 198°	2024-11-16 16:21:40
W4JJ B		2.3 miles 199°	2024-11-17 18:33:08		W4JJ-B		2.3 miles 199°	2024-11-17 18:33:18
W4JJ C		2.3 miles 199°	2024-11-08 15:27:49		W4JJ-C		2.3 miles 199°	2024-11-08 15:27:59
DL3RAJ-5		2.4 miles 84°	2024-11-10 16:26:51		N8IK-9		2.5 miles 127°	2024-11-19 06:22:07
KN4TSA-9		3.0 miles 273°	2024-11-18 13:38:31		KN4RPA-9		3.0 miles 150°	2024-10-25 14:08:30

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.