Comment:	aprs.fi for iOS
Location:	38°21.44' N 121°59.33' W - locator CM98AI15IS - show map 133.6 m Northwest bearing 314° from Vacaville, Solano County, California, United States [?] 7.6 km Southwest bearing 209° from Hartley, Solano County, California, United States 74.9 km Northeast bearing 30° from San Francisco, San Francisco County, California, United States 113.4 km North bearing 356° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-07 03:47:41 UTC (16d 14h55m ago) 2025-11-06 19:47:41 PST local time at Vacaville, United States [?]
Speed:	0 km/h
Last path:	W1FRD-4>aprs.fi via aprsfi-iOS
Positions stored:	8
Other SSIDs:	W1FRD-B W1FRD-N W1FRD-7 W1FRD-10 W1FRD W1FRD-6 W1FRD-2 W1FRD-is W1FRD-Y

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.