Location:	37°31.98' N 122°17.80' W - locator CM87UM47JW - show map 7.5 km Northwest bearing 315° from Redwood City, San Mateo County, California, United States [?] 8.0 km North bearing 342° from Emerald Lake Hills, San Mateo County, California, United States 29.0 km South bearing 158° from San Francisco, San Francisco County, California, United States 41.5 km Northwest bearing 301° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-16 12:10:15 UTC (2m48s ago) 2026-01-16 04:10:15 PST local time at Redwood City, United States [?]
Last WX report:	2026-01-16 12:10:10 UTC (2m53s ago) – show weather charts 6.1 °C 85% 1014.7 mbar 0.0 m/s West
Device:	Unknown: Unknown
Last path:	KJ6GEA>APRS via TCPXX*,qAX,CWOP-6
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.