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 KC3YDL - show graphs
Comment: https://www.ka2ddo.org/ka2ddo/YAAC.html
Location: 39°00.72' N 77°07.10' W - locator FM19KA52TV - show map
6.3 km Southwest bearing 240° from Wheaton, Montgomery County, Maryland, United States [?]
9.1 km West bearing 251° from Kemp Mill, Montgomery County, Maryland, United States
14.8 km Northwest bearing 331° from Washington, D. C., Washington, D.C., United States
53.5 km Southwest bearing 235° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-12-30 04:09:03 UTC (15d 6h46m ago)
2025-12-29 23:09:03 EST local time at Wheaton, United States [?]
Device: KA2DDO: YAAC (software)
Last path: KC3YDL>APJYC1 via TCPIP*,qAC,T2BC
Positions stored: 1
Other SSIDs: KC3YDL-7 KC3YDL-10 KC3YDL-i
Last heard a station directly: 2025-12-30 04:03:31 UTC (15d 6h51m ago)
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