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 4PN3GXH-9 - show graphs
Location: 39°17.96' N 76°42.70' W - locator FM19PH41OU - show map
2.2 miles Northeast bearing 30° from Catonsville, Baltimore County, Maryland, United States [?]
2.2 miles North bearing 351° from Charlestown, Baltimore County, Maryland, United States
5.4 miles West bearing 277° from Baltimore, City of Baltimore, Maryland, United States
32.9 miles Northeast bearing 32° from Washington, D. C., Washington, D.C., United States
Last position: 2024-10-25 14:07:45 EDT (8d 17h52m ago)
2024-10-25 14:07:45 EDT local time at Catonsville, United States [?]
Altitude: 363 ft
Course: 130°
Speed: 34 MPH
Device: Argent Data Systems: OpenTracker (tracker)
Last path: 4PN3GXH-9>APOT30 via N3KTX-1,WIDE1*,WIDE2-1,qAR,N3JAS (good)
Positions stored: 8
Stations near current position of 4PN3GXH-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
KC3MGF-71.0 miles 176°2024-10-31 18:42:09 KC3MGF-i1.0 miles 175°2024-10-26 18:59:54
N3GXH-71.1 miles 313°2024-11-01 13:13:35 KB3HWM-71.5 miles 273°2024-10-15 21:12:45
AA0NM-91.7 miles 250°2024-11-01 17:15:46 N3KTX-11.8 miles 237°2024-11-03 07:00:24
KO3F2.1 miles 165°2024-10-07 13:07:07 KC3SEF2.3 miles 61°2024-10-12 10:37:58
KD3H B2.9 miles 234°2024-10-29 08:54:52 KD3H-B2.9 miles 234°2024-10-29 08:55:02
Tommy2.9 miles 56°2024-10-17 07:42:24 AB3FO-93.5 miles 279°2024-10-20 10:50:52
KC3OQP-73.5 miles 148°2024-11-02 03:58:40 K9MST-63.9 miles 276°2024-10-10 20:37:06
KC3YVL-73.9 miles 276°2024-10-10 20:37:57 KC3OUR-73.9 miles 277°2024-10-10 21:24:02
KC3PVI-73.9 miles 277°2024-10-10 20:51:53 K9MST-103.9 miles 277°2024-10-10 20:55:31
KC3YAD-74.0 miles 277°2024-10-10 21:32:30 NS5Z-94.0 miles 265°2024-10-27 15:50:13
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