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 W1OR-4 - show graphs
Comment: aprs.fi for iOS
Location: 42°14.70' N 71°37.81' W - locator FN42EF48JT - show map
5.2 miles South bearing 174° from Northborough, Worcester County, Massachusetts, United States [?]
8.4 miles Southwest bearing 211° from Marlborough, Middlesex County, Massachusetts, United States
30.2 miles West bearing 255° from Boston, Suffolk County, Massachusetts, United States
30.3 miles West bearing 259° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2025-01-26 13:26:45 EST (10d 17h56m ago)
2025-01-26 13:26:45 EST local time at Northborough, United States [?]
Speed: 0 MPH
Last path: W1OR-4>aprs.fi via aprsfi-iOS
Positions stored: 1347
Other SSIDs: W1OR-2 W1OR W1OR-7
Stations near current position of W1OR-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
W1REH1.5 miles 260°2025-02-06 07:21:00 WA1HZN-94.1 miles 304°2025-02-05 12:55:43
K1RDD5.0 miles 309°2025-01-25 13:29:49 NM1E-75.6 miles 298°2025-02-05 13:57:05
KC1DDH-95.6 miles 101°2025-02-06 06:16:15 DW00335.7 miles 358°2025-02-06 07:15:09
EW83076.0 miles 298°2025-02-06 07:15:57 W1DSR C6.0 miles 134°2025-02-06 07:06:19
W1DSR-C6.0 miles 134°2025-02-06 07:06:05 W1DMT-96.1 miles 61°2025-02-05 07:20:16
W1KU-26.1 miles 358°2025-02-06 06:57:58 K1KWP6.3 miles 259°2025-01-21 17:28:28
GW15336.5 miles 337°2025-02-06 07:20:38 EW87546.6 miles 108°2025-02-06 07:20:45
K1EHT-16.8 miles 223°2025-01-13 16:04:18 K1EHT-26.8 miles 223°2025-01-16 23:39:09
K1EHT-76.8 miles 223°2025-01-12 16:16:25 KC1VRS-16.9 miles 239°2025-01-11 13:05:31
KC1VRS-106.9 miles 239°2025-01-12 16:16:59 W1KU-77.0 miles 356°2025-01-31 18:50:13
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