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 9M4BCW-4 - show graphs
Comment: Amateur Radio APRS Beacon by 9M2OCW [23SATS(0.6) Tops:83kmh 2km/00:02 5.17V]
Mic-E message: Off duty
Location: 1°29.54' N 103°48.30' E - locator OJ11VL68OD - show map
3.7 miles Northeast bearing 60° from Johor Bahru, Johor, Malaysia [?]
5.2 miles West bearing 285° from Kampung Pasir Gudang Baru, Johor, Malaysia
14.3 miles North bearing 347° from Singapore, Singapore
Last position: 2023-12-16 07:01:15 EST (159d 3h41m ago)
2023-12-16 20:01:15 +08 local time at Johor Bahru, Malaysia [?]
Altitude: 46 ft
Course: 283°
Speed: 48 MPH
Last path: 9M4BCW-4>PQRYU4 via WIDE1-1,WIDE2-1,qAO,9W2KHE-1 (good)
Positions stored: 35
Other SSIDs: 9M4BCW-10 9M4BCW-1 9M4BCW-3 9M4BCW-7 9M4BCW-5 9M4BCW-9 9M4BCW
Stations near current position of 9M4BCW-4 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
9M4BCW-101.1 miles 289°2024-05-11 00:32:28 5251005411.1 miles 175°2024-05-22 02:32:32
5250191151.2 miles 187°2024-05-22 04:16:54 5630230501.5 miles 143°2024-05-21 02:13:03
5663900001.5 miles 165°2024-05-22 12:01:21 5630221701.5 miles 165°2024-05-23 01:16:07
5630141101.5 miles 165°2024-05-23 11:32:39 6770511001.5 miles 165°2024-05-16 17:45:51
5630709401.6 miles 151°2024-05-22 01:05:35 5254014991.6 miles 219°2024-05-22 01:38:38
5630731801.7 miles 193°2024-05-22 20:27:18 5630626601.8 miles 144°2024-05-22 00:52:34
9W2KHE-82.0 miles 283°2024-05-22 01:30:13 5636650002.1 miles 222°2024-05-23 01:43:57
9W2KHE-32.1 miles 271°2024-05-23 11:06:15 9W2KHE-92.1 miles 271°2024-05-20 09:40:04
9W2KHE-72.1 miles 271°2024-05-21 05:28:54 5655520002.2 miles 141°2024-05-22 22:39:05
5634420002.2 miles 142°2024-05-23 07:27:41 5667890002.3 miles 129°2024-05-22 21:32:50
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