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APRS station W6SFI-9 - show graphs
Mic-E message: Off duty
Location: 37°32.89' N 121°58.29' W - locator CM97AN31KN - show map
1.5 km East bearing 90° from Fremont, Alameda County, California, United States [?]
6.8 km Southeast bearing 142° from Union City, Alameda County, California, United States
24.2 km North bearing 344° from San Jose, Santa Clara County, California, United States
46.8 km Southeast bearing 122° from San Francisco, San Francisco County, California, United States
Last position: 2025-05-18 19:54:47 UTC (11d 6h47m ago)
2025-05-18 12:54:47 PDT local time at Fremont, United States [?]
Altitude: 18 m
Course: 56°
Speed: 7 km/h
Device: Kenwood: TM-D710 (rig)
Last path: W6SFI-9>SWSRXY via WIDE1-1,WIDE2-1,qAR,W6SRR-3 (good)
Positions stored: 963
Other SSIDs: W6SFI-7
Stations which heard W6SFI-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
About this site
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.
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