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 object W4SDS B - show graphs
Map loading...
Source callsign: W4SDS-S
Comment: 440 Voice 446.52500MHz +0.0000MHz
Location: 35°42.24' N 83°59.58' W - locator EM85AQ08UX - show map - static map
3.8 miles South bearing 199° from Maryville, Blount County, Tennessee, United States [?]
6.0 miles South bearing 190° from Alcoa, Blount County, Tennessee, United States
18.2 miles South bearing 193° from Knoxville, Knox County, Tennessee, United States
87.0 miles Northeast bearing 58° from Chattanooga, Hamilton County, Tennessee, United States
Last position: 2021-05-03 14:07:03 EDT (52d 8h53m ago)
2021-05-03 14:07:03 EDT local time at Maryville, United States [?]
Altitude: 10 ft
Last path: W4SDS-S>APDG01 via TCPIP*,qAC,W4SDS-GS
Positions stored: 11
Stations near current position of W4SDS B - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
W4SDS-N0.0 yards 0°2021-06-05 18:02:09 WA4BDS-91.1 miles 198°2021-06-21 19:01:05
EW00351.6 miles 254°2021-06-24 22:55:47 W7ZP2.7 miles 12°2021-06-24 22:55:57
WA4BDS-102.8 miles 121°2021-06-24 22:06:00 AC2VK-13.3 miles 49°2021-06-24 22:59:15
KE4GBW-103.9 miles 135°2021-06-10 22:00:45 KE4GBW-73.9 miles 136°2021-06-11 18:55:48
KE4GBW-D3.9 miles 136°2021-06-24 22:42:46 KE4GBW3.9 miles 136°2021-06-24 22:34:39
KB4QBE-N4.1 miles 21°2021-06-24 22:42:41 KD0LPT-74.2 miles 32°2021-06-02 13:25:32
KO4GEB-94.2 miles 348°2021-05-29 11:52:23 W4OLB FDS4.4 miles 327°2021-06-08 07:34:09
WB4E-94.4 miles 33°2021-06-15 21:52:48 WB4E-134.5 miles 34°2021-06-24 22:56:27
WB4E8-134.5 miles 34°2021-06-22 03:56:32 N4CRG-94.6 miles 330°2021-06-21 07:19:07
AK4ZX-134.7 miles 156°2021-06-24 22:32:05 W1BEW-105.3 miles 22°2021-06-24 22:52:10
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