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APRS station W4SDM-9 - show graphs
Comment: Mobile - Beige FJ
Mic-E message: Special
Location: 38°50.54' N 77°21.30' W - ตำแหน่ง FM18HU72JD - show map
4.2 km ตะวันตก bearing 264° มาจาก Fairfax, City of Fairfax, Virginia, United States [?]
6.4 km ตะวันตกเฉียงใต้ bearing 228° มาจาก Oakton, Fairfax County, Virginia, United States
28.2 km ตะวันตก bearing 258° มาจาก Washington, D. C., Washington, D.C., United States
81.2 km ตะวันตกเฉียงใต้ bearing 232° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-06-23 21:26:17 UTC (3d 23h38m ago)
2025-06-23 17:26:17 EDT เวลาท้องถิ่น Fairfax, United States [?]
Course: 107°
ความเร็ว: 0 km/h
Device: Kenwood: TH-D72 (ht)
Last path: W4SDM-9>3X5P5T via N4CV-2*,WIDE1*,WC4J*,KN4IJF-1*,WIDE2*,qAR,WC4J (good)
Positions stored: 23998
Other SSIDs: W4SDM
Stations which heard W4SDM-9 directly on radio –
ชื่อสถานี pkts ได้ยินครั้งแรก - UTC ได้ยินล่าสุด ยาวสุด (tx => rx) ยาวสุด ณ ตำแหน่ง - 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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