Location:	37°42.55' N 122°04.32' W - locator CM87XR10IE - show map 2.1 km Northeast bearing 37° from Castro Valley, Alameda County, California, United States [?] 4.0 km Northeast bearing 66° from Ashland, Alameda County, California, United States 31.4 km East bearing 103° from San Francisco, San Francisco County, California, United States 44.0 km North bearing 339° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-20 17:15:37 UTC (5m51s ago) 2026-01-20 09:15:37 PST local time at Castro Valley, United States [?]
Last WX report:	2026-01-20 17:15:37 UTC (5m51s ago) – show weather charts 7.2 °C 85% 1020.9 mbar 0.0 m/s Northeast
Device:	Unknown: Unknown
Last path:	EW9856>APRS via TCPXX*,qAX,CWOP-3
Positions stored:	2

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.