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 W4AI-4 - show graphs
Comment: aprs.fi for iOS
Location: 39°41.16' N 83°55.21' W - locator EM89AQ94OP - show map
0.5 miles East bearing 81° from Xenia, Greene County, Ohio, United States [?]
3.1 miles Southwest bearing 227° from Wilberforce, Greene County, Ohio, United States
46.1 miles Northeast bearing 38° from Cincinnati, Hamilton County, Ohio, United States
52.4 miles West bearing 249° from Columbus, Franklin County, Ohio, United States
Last position: 2024-05-18 16:25:07 EDT (24s ago)
2024-05-18 16:25:07 EDT local time at Xenia, United States [?]
Course: 262°
Speed: 44 MPH
Last path: W4AI-4>aprs.fi via aprsfi-iOS
Positions stored: 13711
Other SSIDs: W4AI-7 W4AI-9 W4AI-10 W4AI-8 W4AI-R W4AI-i
Stations near current position of W4AI-4 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
W4AI-7320.9 yards 264°2024-05-18 15:42:33 KD8GCN-10.4 miles 83°2024-05-06 18:49:39
N1STN-70.5 miles 276°2024-05-15 08:01:31 W4UEK-i0.5 miles 280°2024-05-18 16:25:26
K3KAP-90.6 miles 272°2024-05-17 20:21:00 W0NKY-90.7 miles 228°2024-05-17 07:50:35
KK4DDF-90.8 miles 263°2024-05-18 10:41:53 K9EZ-90.9 miles 314°2024-05-18 09:45:58
KE3HG-90.9 miles 314°2024-05-18 08:13:44 N9MO0.9 miles 316°2024-05-17 15:06:36
AI0Z-90.9 miles 313°2024-05-18 06:15:39 W3ADP0.9 miles 257°2024-05-16 19:24:23
KE8VCW1.0 miles 312°2024-05-17 10:38:31 N4ML-71.0 miles 318°2024-05-17 07:34:23
N4TLM-91.1 miles 313°2024-05-18 07:43:45 WB8ERJ-81.1 miles 322°2024-05-17 09:03:06
KE8VLX-61.1 miles 276°2024-05-18 14:57:17 WB4JB-141.1 miles 309°2024-05-17 07:46:46
N2ICV-91.1 miles 311°2024-05-18 16:21:35 PU2PYC-51.1 miles 314°2024-05-18 16:05:11
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