Source callsign:	BI1UMX-S
Comment:	440 Voice 438.75000MHz -8.0000MHz
Location:	39°57.72' N 116°32.49' E - locator OM89GX40XV - show map 5.0 miles Northwest bearing 322° from Tongzhou, Beijing, China [?] 8.5 miles Northeast bearing 64° from Beijing, Beijing, China 12.5 miles Southwest bearing 206° from Shunyi, Beijing, China 65.9 miles Northwest bearing 329° from Tianjin, Tianjin Shi, China
Last position:	2024-12-30 03:39:14 EST (19d 18h38m ago) 2024-12-30 16:39:14 CST local time at Tongzhou, China [?]
Last path:	BI1UMX-S>APDG01 via TCPIP*,qAC,BI1UMX-GS
Positions stored:	1

callsign		distance	last heard - EST		callsign		distance	last heard - EST
BI1UMX-R		0.0 yards 0°	2025-01-07 10:44:48		BI1UMX-B		0.0 yards 0°	2024-12-30 03:39:24
BH1DCY-9		0.9 miles 258°	2024-12-26 10:11:25		BH1MZG-9		1.0 miles 253°	2024-12-24 08:56:36
BH1VSA-6		1.0 miles 127°	2025-01-17 21:52:23		BI1PRJ-9		1.2 miles 205°	2025-01-10 21:47:03
BI1DSL-9		2.2 miles 283°	2025-01-18 20:29:30		BI1DSL-1		2.2 miles 283°	2025-01-11 09:10:36
BI1DSL		2.6 miles 244°	2025-01-16 01:25:29		BI1IZF-10		2.8 miles 165°	2025-01-06 01:06:58
BI1QSD-7		2.8 miles 343°	2025-01-04 03:58:35		BA4RGN		2.8 miles 294°	2025-01-03 04:22:45
BH1MWE-9		3.1 miles 87°	2025-01-11 02:34:10		BG1QGD-10		3.2 miles 1°	2025-01-18 22:18:06
BI1VVU-7		3.4 miles 303°	2025-01-17 04:47:01		BG1GSQ-N		3.5 miles 291°	2025-01-10 01:13:44
BI1QKM-5		3.5 miles 87°	2025-01-11 04:47:59		BI1TGO-5		3.5 miles 219°	2025-01-18 21:53:28
BH1PYP-9		3.5 miles 224°	2025-01-18 22:17:28		BI1ODV-8		3.5 miles 272°	2025-01-17 23:56:07

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.