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 AI4SI-9 - show graphs Bookmark and Share
Map loading...
Mic-E message: En route
Location: 35°43.29' N 83°58.99' W - locator EM85AR23AD - show map - static map
2.5 miles South bearing 196° from Maryville, Blount County, Tennessee, United States [?]
4.7 miles South bearing 186° from Alcoa, Blount County, Tennessee, United States
16.9 miles South bearing 192° from Knoxville, Knox County, Tennessee, United States
88.1 miles Northeast bearing 58° from Chattanooga, Hamilton County, Tennessee, United States
Last position: 2012-02-11 17:32:32 UTC (2d 9h28m ago)
2012-02-11 12:32:32 EST local time at Maryville, United States [?]
Altitude: 955 ft
Course: 150°
Speed: 33 MPH
Device: Kenwood: TM-D700 (rig)
Last path: AI4SI-9>SU4S2Y via WIDE1-1,WIDE2-2,qAS,AJ4HV-5 (good)
Positions stored: 12076
Packet rate: 94 seconds between packets on average during 4683 seconds.
Other SSIDs: AI4SI
Stations near current position of AI4SI-9 - show more
callsign distance last heard - UTC      callsign distance last heard - UTC
WA4BDS-91.8 miles 251°2012-02-13 17:15:14 WA4BDS2.4 miles 202°2012-02-14 02:59:34
WA4BDS-102.5 miles 146°2012-02-14 02:45:02 WB4E-73.0 miles 33°2012-02-14 00:38:50
WB4E-93.0 miles 36°2012-01-30 22:25:19 AJ4HV-103.3 miles 274°2012-01-16 19:42:54
WB4E-143.7 miles 51°2012-02-06 22:12:52 KE4FGW-95.1 miles 53°2012-02-13 23:01:28
AJ4HV-55.4 miles 281°2012-02-14 02:56:25 AJ4HV-85.4 miles 280°2012-02-07 20:49:52
AJ4HV-95.6 miles 281°2012-02-14 00:00:12 KJ4ETP-96.3 miles 0°2012-02-12 03:59:04
KE4OTZ-36.4 miles 130°2012-02-14 03:00:17 K4TAK-97.5 miles 52°2012-02-07 20:34:57
K4TAK7.5 miles 52°2012-02-14 02:35:08 146.625-R8.1 miles 142°2012-02-14 02:59:08
K4TAK-108.5 miles 45°2012-02-11 14:32:01 W4BBB-1011.3 miles 71°2012-02-14 02:45:03
DW259811.5 miles 341°2012-02-14 01:59:48 DW807911.6 miles 341°2012-02-14 02:29:21
Stations which heard AI4SI-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC
K1LH-3 9 2012-02-10 17:51:48 2012-02-10 18:34:24 EM75MW > EM76HB 25.5 miles 291° 2012-02-10 18:34:24
NT4UX-2 4 2012-02-01 12:55:49 2012-02-01 16:51:10 EM65RX > EM75AU 34.0 miles 102° 2012-02-01 12:55:49
K1LH 1 2012-02-10 18:16:11 2012-02-10 18:16:11 EM76ID > EM76ID 1.6 miles 353° 2012-02-10 18:16:11
NT4UX-3 12 2012-02-01 12:57:52 2012-02-10 17:23:22 EM65TT > EM66NG 41.8 miles 317° 2012-02-01 16:45:06
WA4BDS 131 2012-02-10 19:38:05 2012-02-11 17:29:40 EM85AS > EM85AQ 4.3 miles 185° 2012-02-11 17:18:08
K4TAK 15 2012-02-10 21:36:41 2012-02-11 17:28:16 EM85AQ > EM85BS 8.4 miles 45° 2012-02-10 22:52:08
W4KCO-3 1 2012-02-10 18:48:57 2012-02-10 18:48:57 EM75PV > EM75MF 47.3 miles 201° 2012-02-10 18:48:57
KG4MFJ-1 3 2012-02-10 18:01:57 2012-02-10 18:12:07 EM76HD > EM76FE 12.5 miles 292° 2012-02-10 18:12:07
KE4OTZ-3 66 2012-02-10 19:17:36 2012-02-11 17:36:55 EM75UT > EM85BP 22.8 miles 116° 2012-02-10 19:23:05
GRNTOP-3 13 2012-02-10 19:19:37 2012-02-11 17:20:10 EM75UT > EM85DT 33.0 miles 88° 2012-02-10 19:19:37
KG4LIW-9 7 2012-02-01 12:51:55 2012-02-01 17:13:07 EM66QA > EM65QX 1.4 miles 167° 2012-02-01 17:11:31
KI4GVH-1 43 2012-02-01 14:19:10 2012-02-01 15:44:43 EM65RD > EM65RD 3.4 miles 260° 2012-02-01 15:05:44
KD4TXF 2 2012-02-01 13:08:04 2012-02-01 13:14:11 EM65SV > EM65UV 8.5 miles 79° 2012-02-01 13:08:04
AJ4HV 5 2012-02-10 19:23:39 2012-02-11 17:31:13 EM85AR > EM75VX 22.3 miles 325° 2012-02-11 17:12:02
KI4SOP-10 1 2012-02-10 17:13:13 2012-02-10 17:13:13 EM66UE > EM66UC 6.3 miles 180° 2012-02-10 17:13:13
AJ4HV-5 11 2012-02-10 19:23:06 2012-02-11 17:32:32 EM75UT > EM75XR 10.9 miles 113° 2012-02-10 19:23:06

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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