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APRS station K4MMJ-9 - show graphs
Comment: 146.520MHz QSO if you see me
Mic-E message: In service
Location: 38°20.15' N 77°03.07' W - locator FM18LI30UO - show map
510.1 m North bearing 359° from Dahlgren, King George County, Virginia, United States [?]
13.8 km Northeast bearing 57° from King George, King George County, Virginia, United States
62.2 km South bearing 181° from Washington, D. C., Washington, D.C., United States
112.7 km South bearing 200° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-12-01 09:47:31 UTC (5h12m ago)
2025-12-01 04:47:31 EST local time at Dahlgren, United States [?]
Altitude: -1 m
Course: 146°
Speed: 46 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: K4MMJ-9>S8RP1U via qAR,WB3AZH-10
Positions stored: 18793
Other SSIDs: K4MMJ-R K4MMJ-Y K4MMJ-10 K4MMJ K4MMJ-N K4MMJ-D
Stations which heard K4MMJ-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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