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APRS station WS4JM-4 - show graphs
Comment: WS4JM Mobile 4
Location: 35°58.98' N 85°29.93' W - locator EM75GX05DV - show map
7.1 km Northwest bearing 334° from Sparta, White County, Tennessee, United States [?]
20.0 km South bearing 179° from Cookeville, Putnam County, Tennessee, United States
105.6 km North bearing 351° from Chattanooga, Hamilton County, Tennessee, United States
117.2 km East bearing 100° from Nashville, Davidson County, Tennessee, United States
Last position: 2025-09-03 22:50:30 UTC (15d 20h6m ago)
2025-09-03 17:50:30 CDT local time at Sparta, United States [?]
Course: 148°
Speed: 116 km/h
Device: OpenGD77: OpenGD77
Last path: WS4JM-4>APOG77 via W4DMM-3,WIDE1*,WIDE2-1,qAR,N5EI-3 (good)
Positions stored: 1471
Other SSIDs: WS4JM-2 WS4JM WS4JM-1 WS4JM-3 WS4JM-8 WS4JM-D WS4JM-N WS4JM-10 WS4JM-5 WS4JM-9 WS4JM-7
Stations which heard WS4JM-4 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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