Location:	37°51.80' N 122°01.36' W - locator CM87XU77GE - show map 6.5 km Northwest bearing 299° from Diablo, Contra Costa County, California, United States [?] 11.1 km Northwest bearing 295° from Blackhawk, Contra Costa County, California, United States 36.2 km East bearing 74° from San Francisco, San Francisco County, California, United States 59.3 km North bearing 349° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-01 13:45:04 UTC (5m28s ago) 2026-01-01 05:45:04 PST local time at Diablo, United States [?]
Last WX report:	2026-01-01 13:45:04 UTC (5m28s ago) – show weather charts 8.9 °C 93% 1010.8 mbar 0.0 m/s West
Device:	Unknown: Unknown
Last path:	FW1863>APRS via TCPXX*,qAX,CWOP-5
Positions stored:	3

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.