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APRS station DO4SEM - show graphs
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Location: 51°32.89' N 7°18.74' E - locator JO31PN71LN - show map - static map
6.5 miles Southeast bearing 156° from Oer-Erkenschwick, North Rhine-Westphalia, Germany [?]
7.0 miles Southwest bearing 213° from Waltrop, North Rhine-Westphalia, Germany
14.4 miles Northeast bearing 62° from Essen, North Rhine-Westphalia, Germany
45.2 miles North bearing 20° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany
Last position: 2017-10-02 05:19:52 EDT (14d 14h44m ago)
2017-10-02 11:19:52 CEST local time at Oer-Erkenschwick, Germany [?]
Speed: 1 MPH
Last path: DO4SEM>API51 via DSTAR*,qAR,DB0BS-B (good)
Positions stored: 182
Stations near current position of DO4SEM - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
DB4QP-41.5 miles 264°2017-10-16 05:32:51 TESCO92.3 miles 325°2017-10-06 10:04:55
SID2.3 miles 324°2017-10-15 03:53:16 HELMUT2.3 miles 327°2017-10-08 13:15:14
GRETE MARIE2.3 miles 325°2017-10-16 08:17:11 EDERSEE2.3 miles 325°2017-10-14 16:43:44
EUODIA2.3 miles 324°2017-10-16 16:43:01 DANNY2.3 miles 323°2017-10-16 01:52:18
ANDREAS K2.3 miles 326°2017-10-13 07:30:45 BONA DEA2.3 miles 322°2017-10-15 07:41:48
CRANGE2.3 miles 322°2017-10-14 03:56:58 ANNEGRET2.3 miles 320°2017-10-10 10:52:15
TMS MARIA2.3 miles 323°2017-10-16 11:12:35 KVB MYSTIQUE2.3 miles 320°2017-10-16 14:43:20
REGINA2.3 miles 319°2017-10-16 09:45:23 JUERGENSBURG2.4 miles 315°2017-10-16 20:01:34
DL7DAX-92.4 miles 249°2017-10-13 09:52:55 MS STEIGERWALD2.4 miles 310°2017-09-18 05:36:54
FLUETENBERG2.4 miles 332°2017-10-14 05:53:14 CHRISTINA-M2.5 miles 336°2017-10-15 09:16:01
Stations which heard DO4SEM directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT

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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