Comment:	aprs.fi for iOS
Location:	37°48.03' N 121°59.11' W - locator CM97AT12SD - show map 2.7 km Southeast bearing 151° from Danville, Contra Costa County, California, United States [?] 6.9 km Southeast bearing 143° from Alamo, Contra Costa County, California, United States 38.2 km East bearing 86° from San Francisco, San Francisco County, California, United States 51.9 km North bearing 351° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-31 02:58:16 UTC (12d 1h55m ago) 2026-01-30 18:58:16 PST local time at Danville, United States [?]
Speed:	0 km/h
Last path:	W6HU-4>aprs.fi via aprsfi-iOS
Positions stored:	1
Other SSIDs:	W6HU-7 W6HU-i W6HU

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.