Location:	37°54.00' N 122°04.01' W - locator CM87XV16XA - show map 6.3 km Northwest bearing 331° from Alamo, Contra Costa County, California, United States [?] 12.0 km Northwest bearing 307° from Diablo, Contra Costa County, California, United States 33.9 km Northeast bearing 66° from San Francisco, San Francisco County, California, United States 64.1 km North bearing 346° from San Jose, Santa Clara County, California, United States
Last position:	2026-02-28 21:30:57 UTC (10m45s ago) 2026-02-28 13:30:57 PST local time at Alamo, United States [?]
Last WX report:	2026-02-28 21:30:57 UTC (10m45s ago) – show weather charts 25.6 °C 56% 1012.6 mbar 0.0 m/s Northwest
Device:	Unknown: Unknown
Last path:	EW8430>APRS via TCPXX*,qAX,CWOP-3
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.