Location:	37°53.60' N 121°35.67' W - locator CM97EV84PJ - show map 4.8 km Northeast bearing 53° from Byron, Contra Costa County, California, United States [?] 13.0 km North bearing 340° from Mountain House, San Joaquin County, California, United States 67.0 km Northeast bearing 23° from San Jose, Santa Clara County, California, United States 73.6 km East bearing 79° from San Francisco, San Francisco County, California, United States
Last position:	2026-01-11 20:00:30 UTC (5m3s ago) 2026-01-11 12:00:30 PST local time at Byron, United States [?]
Last WX report:	2026-01-11 20:00:30 UTC (5m3s ago) – show weather charts 1029.1 mbar
Device:	Unknown: Unknown
Last path:	wuzzypl1>APRS via TCPXX*,qAX,CWOP-7
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.