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 KI4NYO-1 - show graphs
Comment: UV PRO (HT) 5W
Location: 38°47.38' N 77°28.93' W - locator FM18GS29DM - show map
1.4 km East bearing 105° from Sudley, Prince William County, Virginia, United States [?]
1.5 km Northeast bearing 60° from West Gate, Prince William County, Virginia, United States
40.3 km West bearing 253° from Washington, D. C., Washington, D.C., United States
93.5 km Southwest bearing 234° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-06-07 14:12:51 UTC (47d 3h21m ago)
2025-06-07 10:12:51 EDT local time at Sudley, United States [?]
Course: 185°
Speed: 4 km/h
Device: BTECH: UV-PRO (ht)
Last path: KI4NYO-1>APBTUV via KN4IJF-1,N3KTX-2,K3ORB-10,WIDE1,TOMRVR,WA2FPB-5*,qAR,KC2GOW-1 (good)
Positions stored: 52
Other SSIDs: KI4NYO-10 KI4NYO
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