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 K4CRS-4 - show graphs
Comment: 146.520MHz winlink APMAIL
Location: 34°15.67' N 87°51.40' W - locator EM64BG72EQ - show map
1.9 miles Southwest bearing 235° from Hackleburg, Marion County, Alabama, United States [?]
11.1 miles Northeast bearing 43° from Hamilton, Marion County, Alabama, United States
74.4 miles North bearing 347° from Tuscaloosa, Tuscaloosa County, Alabama, United States
79.2 miles Northwest bearing 311° from Birmingham, Jefferson County, Alabama, United States
Last position: 2025-01-30 14:31:04 EST (2d 7h38m ago)
2025-01-30 13:31:04 CST local time at Hackleburg, United States [?]
Altitude: 749 ft
Device: Open Source: APRSdroid (app, Android)
Last path: K4CRS-4>APDR17 via WIDE1-1,qAR,K4CRS-10 (good)
Positions stored: 28
Packet rate: 308 seconds between packets on average during 1234 seconds.
Other SSIDs: K4CRS-13 K4CRS-10 K4CRS-1 K4CRS K4CRS-7 K4CRS-i
Last heard a station directly: 2025-01-30 14:30:34 EST (2d 7h39m ago)
Stations near current position of K4CRS-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
K4CRS2.0 miles 257°2025-02-01 19:38:20 K4CRS-102.2 miles 265°2025-02-01 22:03:22
K4CRS-12.2 miles 264°2025-02-01 21:43:01 K4CRS-i2.2 miles 264°2025-01-13 18:24:59
K4CRS-72.2 miles 264°2025-01-31 09:25:31 K4CRS-132.4 miles 266°2025-02-01 22:04:56
KO4CCD-D11.2 miles 256°2025-01-08 10:43:33 KJ4I-M12.5 miles 231°2025-01-20 07:40:58
KJ4I B12.5 miles 232°2025-01-27 19:28:49 KJ4I-B12.5 miles 232°2025-01-27 19:28:59
KJ4I-W12.6 miles 232°2025-02-01 11:48:34 KI4WX B14.0 miles 223°2025-02-01 21:58:41
KI4WX-B14.0 miles 223°2025-02-01 21:58:51 KQ1USA-916.4 miles 179°2025-01-09 07:54:47
KN4VPP19.5 miles 183°2025-01-30 09:56:04 N4IDX-728.3 miles 69°2025-02-01 22:08:19
K5DMR-128.6 miles 118°2025-02-01 22:09:34 NOGRASSTOMO30.4 miles 260°2025-01-28 11:21:28
PARTNERSHIP II30.6 miles 263°2025-01-25 10:08:14 TRAVELER30.6 miles 263°2025-01-24 09:43:56
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