Location:	37°50.43' N 122°01.67' W - locator CM87XU61PR - show map 1.1 km South bearing 160° from Alamo, Contra Costa County, California, United States [?] 6.2 km West bearing 276° from Diablo, Contra Costa County, California, United States 35.1 km East bearing 78° from San Francisco, San Francisco County, California, United States 56.9 km North bearing 348° from San Jose, Santa Clara County, California, United States
Last position:	2026-03-01 04:00:17 UTC (6m33s ago) 2026-02-28 20:00:17 PST local time at Alamo, United States [?]
Last WX report:	2026-03-01 03:55:07 UTC (11m43s ago) – show weather charts 17.2 °C 75% 1.8 m/s South
Device:	Unknown: Unknown
Last path:	EW3975>APRS via TCPXX*,qAX,CWOP-4
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.