Location:	37°58.54' N 122°05.40' W - locator CM87WX94ED - show map 3.7 km South bearing 172° from Vine Hill, Contra Costa County, California, United States [?] 4.4 km Southeast bearing 147° from Mountain View, Contra Costa County, California, United States 36.5 km Northeast bearing 52° from San Francisco, San Francisco County, California, United States 72.8 km North bearing 346° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-23 08:30:28 UTC (2m40s ago) 2026-01-23 00:30:28 PST local time at Vine Hill, United States [?]
Last WX report:	2026-01-23 08:30:28 UTC (2m40s ago) – show weather charts 8.3 °C 88% 1015.5 mbar 0.0 m/s Northwest
Device:	Unknown: Unknown
Last path:	GW2732>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.