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 KB4TJJ-4 - show graphs
Location: 35°59.90' N 83°57.00' W - locator EM85AX69AO - show map
3.1 miles Northwest bearing 328° from Knoxville, Knox County, Tennessee, United States [?]
13.8 miles Northeast bearing 55° from Farragut, Knox County, Tennessee, United States
100.8 miles Northeast bearing 49° from Chattanooga, Hamilton County, Tennessee, United States
Last position: 2024-10-16 12:16:31 EDT (68d 8h19m ago)
2024-10-16 12:16:31 EDT local time at Knoxville, United States [?]
Altitude: 1357 ft
Course: 61°
Speed: 19 MPH
Last telemetry: 2024-08-25 00:57:09 EDT (120d 19h38m ago) – show telemetry
Battery: 98 Percent, Charging/AC: 48 Charge/On/Off, GPS+Sat: 2 Sats/On/Off, Current: 0 mA, A5: 0 N/A
 A/C     Charging     GPS     B4     B5     B6     B7     B8 
Device: aprs.fi: iPhone/iPad app (app, ios)
Last path: KB4TJJ-4>APFII0 via WIDE1-1,WIDE2-2,qAR,AC2VK-1 (good)
Positions stored: 16
Packet rate: 1876 seconds between packets on average during 9379 seconds.
Other SSIDs: KB4TJJ-15 KB4TJJ-10 KB4TJJ-Y KB4TJJ-7 KB4TJJ-D KB4TJJ KB4TJJ-17 KB4TJJ-3 KB4TJJ-2 KB4TJJ-6 KB4TJJ KB4TJJ-H KB4TJJ-B
Last heard a station directly: 2024-10-18 03:04:23 EDT (66d 17h31m ago)
Stations near current position of KB4TJJ-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
W4INS0.7 miles 259°2024-12-22 12:44:10 EW21731.3 miles 50°2024-12-23 19:30:23
KN4EM-C1.3 miles 50°2024-12-23 19:30:49 KN4EM C1.3 miles 50°2024-12-23 19:31:04
AA4UT-101.7 miles 196°2024-12-23 19:29:16 N4EWK-91.7 miles 135°2024-12-15 15:42:25
KG4UJD-52.2 miles 191°2024-12-16 14:16:09 K2RRT-92.2 miles 150°2024-12-22 19:09:09
WB4YYE K2.3 miles 138°2024-12-23 19:33:32 WB4YYE-K2.3 miles 138°2024-12-23 19:33:42
WG4USA-92.3 miles 137°2024-12-17 09:21:43 KY4ZO-62.5 miles 138°2024-12-23 11:18:04
N1OMG-52.6 miles 97°2024-11-26 16:01:44 KY4ZO-22.6 miles 139°2024-12-15 17:09:46
KY4ZO-102.7 miles 139°2024-12-23 19:12:08 K2LJL-92.7 miles 135°2024-12-19 14:14:11
KY4ZO-32.7 miles 139°2024-12-14 15:19:01 KK4BYX-92.7 miles 143°2024-12-08 17:48:36
KO4WNA-93.0 miles 351°2024-12-23 14:29:43 W4NOE-i3.0 miles 314°2024-12-04 13:08:48
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