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APRS station ZS4GJA-7 - show graphs
Comment: V5.2 ZS4SRK VaalTracker
Location: 26°25.25' S 28°05.13' E - locator KG43BN09GA - show map
24.6 km South bearing 170° from Johannesburg, Gauteng, South Africa [?]
28.3 km Southeast bearing 127° from Soweto, Gauteng, South Africa
29.0 km Southwest bearing 217° from Boksburg, Gauteng, South Africa
Last position: 2026-01-25 08:42:17 UTC (6d 11h20m ago)
2026-01-25 10:42:17 SAST local time at Johannesburg, South Africa [?]
Altitude: 1494 m
Course: 349°
Speed: 57 km/h
Device: Unknown: Unknown
Last path: ZS4GJA-7>APRS via ZS0DCC-4*,WIDE1,WIDE2-2,qAR,ZS4SRK (good)
Positions stored: 541
Other SSIDs: ZS4GJA-5 ZS4GJA-3
Stations which heard ZS4GJA-7 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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