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*
Web station KK4YOS-9 - show graphs
Comment: aprs.fi for iOS
Location: 39°19.70' N 77°38.00' W - locator FM19EH48AT - show map
1.0 miles North bearing 343° from Brunswick, Frederick County, Maryland, United States [?]
3.9 miles North bearing 3° from Lovettsville, Loudoun County, Virginia, United States
43.8 miles Northwest bearing 313° from Washington, D. C., Washington, D.C., United States
54.6 miles West bearing 273° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-11-08 10:09:13 EST (2d 6h34m ago)
2024-11-08 10:09:13 EST local time at Brunswick, United States [?]
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 202.3 yards.
Speed: 0 MPH
Last path: KK4YOS-9>aprs.fi via aprsfi-iOS
Positions stored: 16
Other SSIDs: KK4YOS KK4YOS-4
Stations near current position of KK4YOS-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
K3MSR-150.3 miles 331°2024-11-10 15:42:20 KC3CNQ-70.4 miles 334°2024-11-10 15:29:21
KC3CNQ0.7 miles 333°2024-11-08 15:08:51 KG4LAA-91.2 miles 96°2024-11-10 16:30:17
N3HYM-71.3 miles 139°2024-11-08 09:20:21 N3HYM-101.5 miles 162°2024-11-10 15:52:24
W4RAH-13.5 miles 147°2024-11-10 16:43:24 W3OW4.0 miles 186°2024-11-10 16:30:47
DW91744.8 miles 205°2024-11-10 16:29:15 KF8AQB-75.1 miles 266°2024-11-09 22:22:20
KK4WXG5.8 miles 167°2024-11-10 16:41:36 KC3MBE-76.5 miles 73°2024-10-28 20:30:09
W5ODJ-56.6 miles 195°2024-11-10 16:22:26 W5ODJ-116.6 miles 195°2024-11-10 16:38:26
W5ODJ-86.6 miles 194°2024-11-09 10:30:04 K0KOC-76.8 miles 70°2024-11-10 05:50:13
EW70837.2 miles 261°2024-11-10 16:33:26 GW47338.0 miles 289°2024-11-10 16:38:33
W3/WE-0078.3 miles 2°2024-10-13 12:20:07 AB3KC8.3 miles 183°2024-11-03 13:54:31
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