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 KC1AJJ-9 - show graphs
Map loading...
Comment: 448.375MHz NBTS SAG 5
Location: 42°38.01' N 71°22.25' W - locator FN42HP52MA - show map - static map
2.3 miles North bearing 356° from Chelmsford, Middlesex County, Massachusetts, United States [?]
5.1 miles Northeast bearing 42° from Westford, Middlesex County, Massachusetts, United States
24.7 miles Northwest bearing 320° from Boston, Suffolk County, Massachusetts, United States
26.4 miles Northwest bearing 322° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2018-07-03 21:54:45 EDT (79d 12h10m ago)
2018-07-03 21:54:45 EDT local time at Chelmsford, United States [?]
Altitude: 65 ft
Device: Open Source: APRSdroid (app, Android)
Last path: KC1AJJ-9>APDR14 via TCPIP*,qAC,T2GB
Positions stored: 954
Other SSIDs: KC1AJJ-13
Stations near current position of KC1AJJ-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KC1AJJ-1325.1 yards 145°2018-09-21 10:00:18 KB1QV-120.8 miles 343°2018-09-21 08:17:17
WB2OSZ-51.6 miles 130°2018-09-21 09:56:45 WA1TE B1.8 miles 200°2018-09-21 10:02:27
WA1TE-B1.8 miles 200°2018-09-21 10:02:37 CW36601.8 miles 107°2018-09-21 10:00:16
W1WRA-72.6 miles 123°2018-09-21 09:52:06 CW11292.9 miles 196°2018-09-21 10:05:25
K1JE-93.0 miles 75°2018-09-03 17:20:31 AG1A B3.1 miles 241°2018-08-28 09:54:09
AG1A-B3.1 miles 241°2018-08-28 09:54:20 AG1A-DP3.1 miles 241°2018-09-13 20:15:42
AG1A-73.1 miles 241°2018-09-20 20:16:57 AG1A-13.1 miles 241°2018-09-21 09:43:01
EW89583.5 miles 120°2018-09-21 10:05:29 KB1DY-73.6 miles 293°2018-09-07 15:37:45
KA1IKK B3.6 miles 356°2018-09-15 12:59:28 KA1IKK-B3.6 miles 356°2018-09-15 12:59:38
CW30534.3 miles 123°2018-09-02 17:33:22 EW41324.5 miles 124°2018-09-21 06:37:47
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.
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