Location:	37°57.68' N 122°32.85' W - locator CM87RX40HR - show map 4.4 km Northwest bearing 336° from Corte Madera, Marin County, California, United States [?] 6.1 km North bearing 358° from Mill Valley, Marin County, California, United States 23.6 km Northwest bearing 332° from San Francisco, San Francisco County, California, United States 89.8 km Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-06-30 18:30:35 UTC (8m ago) 2025-06-30 11:30:35 PDT local time at Corte Madera, United States [?]
Last WX report:	2025-06-30 18:30:35 UTC (8m ago) – show weather charts 22.2 °C 63% 1010.9 mbar 0.4 m/s South
Device:	Unknown: Unknown
Last path:	FW0247>APRS via TCPXX*,qAX,CWOP-4
Positions stored:	2

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.