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*
Web station KC3ROB-4 - show graphs
Comment: aprs.fi for iOS
Location: 39°52.70' N 75°27.43' W - locator FM29GV50DT - show map
1.3 miles Southeast bearing 130° from Chester Heights, Delaware County, Pennsylvania, United States [?]
2.8 miles South bearing 198° from Lima, Delaware County, Pennsylvania, United States
16.4 miles West bearing 252° from Philadelphia, Philadelphia County, Pennsylvania, United States
73.7 miles Northeast bearing 56° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-01-30 15:32:29 EST (124d 10h19m ago)
2024-01-30 15:32:29 EST local time at Chester Heights, United States [?]
Speed: 0 MPH
Last path: KC3ROB-4>aprs.fi via aprsfi-iOS
Positions stored: 1
Other SSIDs: KC3ROB KC3ROB
Stations near current position of KC3ROB-4 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
FW30961.5 miles 34°2024-06-03 02:50:04 KB3RIJ-91.6 miles 149°2024-06-01 12:35:12
GW22143.0 miles 13°2024-06-03 02:45:42 W3PLS-53.3 miles 312°2024-05-30 12:01:59
DW66213.4 miles 64°2024-06-03 02:45:03 FW68063.4 miles 159°2024-06-03 02:45:55
KC3ROB3.8 miles 156°2024-05-31 08:20:07 W3DRA-104.7 miles 253°2024-06-03 02:03:47
EW85564.7 miles 295°2024-06-03 02:49:36 GW04815.0 miles 187°2024-06-03 02:50:34
AC3FR-N5.3 miles 63°2024-06-02 19:56:41 N3GSD-15.6 miles 77°2024-06-03 02:39:01
N3GSD-75.6 miles 77°2024-05-29 22:21:30 W3JBS-25.7 miles 331°2024-06-03 02:27:56
DW95845.8 miles 78°2024-06-03 02:45:08 N3GSD-Y5.9 miles 74°2024-06-02 12:40:47
KC3WSK-76.1 miles 69°2024-05-26 17:09:54 KC3WSK-106.1 miles 69°2024-06-03 02:40:09
KC3MVS-76.3 miles 91°2024-05-15 09:30:29 W3NRL-76.3 miles 91°2024-05-15 09:33:33
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