Location:	35°47.71' N 140°06.28' E - locator QM05BT20NU - show map 3.5 km East bearing 99° from Shiroi, Chiba, Japan [?] 9.6 km East bearing 78° from Kamagaya-shi, Chiba, Japan 39.1 km East bearing 72° from Tokyo, Tōkyō, Japan 56.9 km Northeast bearing 47° from Yokohama-shi, Kanagawa, Japan
Last position:	2025-07-02 22:03:27 UTC (2h28m ago) 2025-07-03 07:03:27 JST local time at Shiroi, Japan [?]
Device:	Icom: IC-5100 (D-Star)
Last path:	JO1ACA-A>API510 via DSTAR*,qAS,JP1YKR-IS
Positions stored:	16625
Other SSIDs:	JO1ACA-B JO1ACA-F JO1ACA

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.