Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station N3DEN-9 - show graphs
Comment: Chris TH-D75
Mic-E message: In service
Location: 39°36.76' N 77°24.23' W - locator FM19HO17MA - show map
1.4 km Southeast bearing 154° from Thurmont, Frederick County, Maryland, United States [?]
12.1 km Southwest bearing 213° from Emmitsburg, Frederick County, Maryland, United States
76.8 km Northwest bearing 298° from Baltimore, City of Baltimore, Maryland, United States
85.8 km North bearing 338° from Washington, D. C., Washington, D.C., United States
Last position: 2025-02-06 13:32:53 UTC (74d 13h50m ago)
2025-02-06 08:32:53 EST local time at Thurmont, United States [?]
Course: 351°
Speed: 0 km/h
Device: Kenwood: TH-D75 (ht)
Last path: N3DEN-9>S9SV7V via N3KTX-2*,WIDE1,WIDE2-1,qAR,W4TTU-10 (good)
Positions stored: 1
Other SSIDs: N3DEN N3DEN-15
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS