Comment:	aprs.fi for iOS
Location:	37°37.21' N 122°23.72' W - locator CM87TO28NU - show map 4.0 km South bearing 164° from South San Francisco, San Mateo County, California, United States [?] 6.7 km South bearing 176° from Brisbane, San Mateo County, California, United States 17.3 km South bearing 173° from San Francisco, San Francisco County, California, United States 54.0 km Northwest bearing 305° from San Jose, Santa Clara County, California, United States
Last position:	2026-02-25 16:17:16 UTC (2d 16h14m ago) 2026-02-25 08:17:16 PST local time at South San Francisco, United States [?]
Course:	93°
Speed:	0 km/h
Last path:	W7SPF-5>aprs.fi via aprsfi-iOS
Positions stored:	1660
Other SSIDs:	W7SPF

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.