Location:	37°51.10' N 122°28.80' W - locator CM87SU24JJ - show map 5.8 km Southeast bearing 121° from Tamalpais-Homestead Valley, Marin County, California, United States [?] 8.3 km Southeast bearing 137° from Mill Valley, Marin County, California, United States 10.0 km Northwest bearing 328° from San Francisco, San Francisco County, California, United States 76.8 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2025-07-21 18:30:28 UTC (8m43s ago) 2025-07-21 11:30:28 PDT local time at Tamalpais-Homestead Valley, United States [?]
Last WX report:	2025-07-21 18:30:28 UTC (8m43s ago) – show weather charts 17.2 °C 85% 1009.7 mbar 4.0 m/s Southwest
Device:	Unknown: Unknown
Last path:	GW5625>APRS via TCPXX*,qAX,CWOP-6
Positions stored:	1

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.