Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       Completed generating statistics (took 0.025 s).
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station KR4BT-9 - show graphs
Comment: https://aprsdroid.org/
Location: 35°56.88' N 85°18.72' W - locator EM75IW27NM - show map
8.6 miles East bearing 80° from Sparta, White County, Tennessee, United States [?]
14.0 miles South bearing 190° from Monterey, Putnam County, Tennessee, United States
61.0 miles North bearing 357° from East Chattanooga, Hamilton County, Tennessee, United States
62.3 miles North bearing 360° from Chattanooga, Hamilton County, Tennessee, United States
Last position: 2024-11-17 11:46:06 EST (64d 13h31m ago)
2024-11-17 10:46:06 CST local time at Sparta, United States [?]
Altitude: 1792 ft
Course: 47°
Speed: 48 MPH
Device: Open Source: APRSdroid (app, Android)
Last path: KR4BT-9>APDR16 via TCPIP*,qAC,T2FINLAND
Positions stored: 165
Other SSIDs: KR4BT-B KR4BT-10 KR4BT-5 KR4BT-1 KR4BT KR4BT KR4BT-C KR4BT-N KR4BT-R KR4BT-D
Stations near current position of KR4BT-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
N9ELM6.0 miles 256°2025-01-05 20:37:42 N9ELM-56.0 miles 256°2025-01-05 19:25:57
W4WTN7.7 miles 20°2024-12-23 11:46:24 W4WTN-107.7 miles 8°2025-01-21 00:21:47
GW32707.8 miles 25°2025-01-21 01:14:16 N9AWQ B9.1 miles 40°2025-01-21 01:17:15
N9AWQ-B9.1 miles 40°2025-01-21 01:17:26 K4UAN-39.9 miles 340°2025-01-21 01:15:29
KR4ADJ10.7 miles 51°2025-01-15 18:49:00 KG4BMG-D10.7 miles 2°2025-01-21 01:01:19
KR4ADJ-1010.7 miles 51°2025-01-12 12:54:10 N9AWQ-DP11.6 miles 64°2025-01-21 00:53:49
WO4U-1313.4 miles 99°2025-01-21 01:05:04 KG5BBM-413.9 miles 86°2025-01-18 23:37:18
KR4BT B14.9 miles 235°2025-01-21 00:59:11 KR4BT-B14.9 miles 235°2025-01-21 00:59:21
KR4BT-1014.9 miles 235°2025-01-21 00:50:27 KR4BT-114.9 miles 235°2025-01-15 20:52:32
KK4TD C15.0 miles 327°2025-01-05 05:44:29 KK4TD-R15.0 miles 327°2025-01-05 05:44:49
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