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 K4RMK - show graphs
Comment: Mobile K4RMK
Mic-E message: Custom 1
Location: 35°05.09' N 80°37.09' W - locator EM95QC50TI - show map
9.9 km West bearing 268° from Unionville, Union County, North Carolina, United States [?]
12.7 km Northwest bearing 331° from Monroe, Union County, North Carolina, United States
25.8 km Southeast bearing 128° from Charlotte, Mecklenburg County, North Carolina, United States
132.8 km Southwest bearing 214° from Greensboro, Guilford County, North Carolina, United States
Last position: 2025-09-16 12:09:33 UTC (14d 20h33m ago)
2025-09-16 08:09:33 EDT local time at Unionville, United States [?]
Altitude: 194 m
Course: 331°
Speed: 109 km/h
Device: Kenwood: TH-D75 (ht)
Last path: K4RMK>DF0U0Y via WIDE1-1,WIDE2-1,qAR,W4DEX (good)
Positions stored: 114
Other SSIDs: K4RMK-7 K4RMK-1 K4RMK-IPhone
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