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 W4WWW-i - show graphs
Comment: aprs.fi iOS
Location: 39°44.50' N 76°41.70' W - locator FM19PR68OA - show map
5.6 miles West bearing 261° from Stewartstown, York County, Pennsylvania, United States [?]
14.9 miles Northwest bearing 309° from Jarrettsville, Harford County, Maryland, United States
31.5 miles North bearing 352° from Baltimore, City of Baltimore, Maryland, United States
61.2 miles North bearing 17° from Washington, D. C., Washington, D.C., United States
Last position: 2024-05-11 15:32:33 EDT (34d 21h19m ago)
2024-05-11 15:32:33 EDT local time at Stewartstown, United States [?]
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 202.3 yards.
Speed: 0 MPH
Last path: >aprs.fi via aprsfi-iOS
Positions stored: 1
Other SSIDs: W4WWW-9 W4WWW-5 W4WWW-Y
Stations near current position of W4WWW-i - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
DW57072.1 miles 129°2024-06-15 12:51:39 K3RUP-93.4 miles 183°2024-06-14 21:00:00
DW62216.3 miles 117°2024-06-15 12:45:59 KC3EWN-97.5 miles 353°2024-06-15 12:51:43
N3GXH-17.6 miles 131°2024-05-16 13:20:11 EW48218.0 miles 100°2024-06-15 12:38:46
CW68888.4 miles 109°2024-06-15 12:50:29 KC3EWN-N8.8 miles 334°2024-05-20 13:52:25
W4WWW-99.0 miles 332°2024-06-08 14:09:32 CTPSVRS0A9.3 miles 18°2024-05-23 21:18:07
KD4IZ-149.6 miles 201°2024-06-02 08:40:45 KD4IZ-109.6 miles 201°2024-06-14 20:51:47
KD4IZ9.6 miles 201°2024-06-14 20:44:31 KD4IZ B9.6 miles 201°2024-06-15 12:35:31
KD4IZ-B9.6 miles 201°2024-06-15 12:35:41 KD4IZ-139.6 miles 201°2024-06-15 12:51:13
AB3BO-B9.9 miles 323°2024-06-11 11:51:45 AB3BO9.9 miles 323°2024-06-14 07:56:02
K3NK-911.7 miles 45°2024-06-15 08:04:47 LWXTORL0A11.8 miles 146°2024-06-05 20:47:50
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