Location:	37°53.94' N 121°43.38' W - locator CM97DV35FS - show map 18.4 km Northeast bearing 62° from Blackhawk, Contra Costa County, California, United States [?] 24.4 km North bearing 9° from Livermore, Alameda County, California, United States 62.7 km East bearing 77° from San Francisco, San Francisco County, California, United States 64.0 km North bearing 14° from San Jose, Santa Clara County, California, United States
Last position:	2026-02-23 18:52:49 UTC (4d 3h38m ago) 2026-02-23 10:52:49 PST local time at Blackhawk, United States [?]
Last WX report:	2026-02-23 18:47:49 UTC (4d 3h43m ago) – show weather charts 17.2 °C 69% 1023.8 mbar 0.9 m/s East
Last path:	DW3588>APN000 via TCPXX*,qAX,CWOP-3
Positions stored:	11

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.