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 KM4JRF-B - show graphs
Comment: 70cm Voice (D-Star) 443.00000MHz +0.0000MHz
Location: 39°30.60' N 76°21.60' W - locator FM19TM62TJ - show map
1.9 miles South bearing 199° from Bel Air, Harford County, Maryland, United States [?]
2.0 miles Southwest bearing 217° from South Bel Air, Harford County, Maryland, United States
20.3 miles Northeast bearing 42° from Baltimore, City of Baltimore, Maryland, United States
70.5 miles Southwest bearing 245° from Philadelphia, Philadelphia County, Pennsylvania, United States
Last position: 2024-11-13 01:12:52 EST (9m24s ago)
2024-11-13 01:12:52 EST local time at Bel Air, United States [?]
Altitude: 10 ft
Device: Jonathan, G4KLX: ircDDB Gateway (D-Star)
Last path: KM4JRF-B>APDG02 via TCPIP*,qAC,KM4JRF-BS
Positions stored: 2
Packet rate: 1187 seconds between packets on average during 58140 seconds.
Other SSIDs: KM4JRF-9 KM4JRF-7 KM4JRF-7 KM4JRF-i
Stations near current position of KM4JRF-B - show more
callsign distance last heard - EST      callsign distance last heard - EST
KM4JRF B0.0 yards 0°2024-11-13 01:12:42 KC3WRK-21.2 miles 17°2024-10-22 16:01:12
P-KC3ECO1.9 miles 19°2024-11-13 01:01:22 DW87952.5 miles 80°2024-11-13 01:20:06
KC3WRK-12.6 miles 29°2024-10-24 21:33:33 AB3ZW B3.0 miles 150°2024-11-13 01:03:48
AB3ZW-B3.0 miles 150°2024-11-13 01:03:58 AB3ZW-103.0 miles 150°2024-11-13 01:09:58
AB3ZW3.0 miles 150°2024-11-08 18:36:43 AB3ZW-N3.0 miles 150°2024-11-13 01:03:24
FW91103.1 miles 58°2024-11-13 01:18:34 K2EJ-133.2 miles 109°2024-11-13 01:20:24
K2EJ-33.2 miles 109°2024-11-13 01:20:27 K2EJ-153.2 miles 109°2024-11-13 01:16:46
K2EJ-93.9 miles 135°2024-11-06 10:48:12 KC3PVI-74.5 miles 97°2024-11-11 23:12:36
KC3FHC C4.9 miles 9°2024-11-13 01:17:27 KC3FHC-C4.9 miles 9°2024-11-13 01:17:37
FW58366.1 miles 111°2024-11-13 01:18:24 EW17626.5 miles 147°2024-11-13 01:20:56
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