Comment:	439.475MHz 京东绿谷业余无线电
Location:	40°08.06' N 116°40.91' E - locator ON80ID12TF - show map 3.3 km East bearing 72° from Shunyi, Beijing, China [?] 26.4 km North bearing 15° from Tongzhou, Beijing, China 35.0 km Northeast bearing 44° from Beijing, Beijing, China 118.1 km North bearing 339° from Tianjin, Tianjin Shi, China
Last position:	2025-11-15 06:16:55 UTC (2d 16h7m ago) 2025-11-15 14:16:55 CST local time at Shunyi, China [?]
Speed:	10 km/h
Last path:	BI1NFI>APN000 via TCPIP*,qAC,T2HK
Positions stored:	383
Other SSIDs:	BI1NFI-1 BI1NFI-11 BI1NFI-4 BI1NFI-10 BI1NFI-2 BI1NFI-7 BI1NFI-8 BI1NFI-6 BI1NFI-5 BI1NFI-3 BI1NFI-12 BI1NFI-9 BI1NFI-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.