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*
AIS vessel CONCRETE IDEA - show graphs
Map loading...
Callsign: WDH4703
MMSI number: 367620460
Navigational status: Under way (engine) (0)
Vessel class: Pleasure (37)
Location: 39°22.08' N 76°07.70' W - locator FM19WI48OH - show map - static map
6.8 miles South bearing 179° from Aberdeen Proving Ground, Harford County, Maryland, United States [?]
8.1 miles Southeast bearing 150° from Perryman, Harford County, Maryland, United States
26.4 miles East bearing 78° from Baltimore, City of Baltimore, Maryland, United States
65.2 miles Southwest bearing 232° from Philadelphia, Philadelphia County, Pennsylvania, United States
Last position: 2016-09-18 09:19:26 EDT (160d 2h46m ago)
2016-09-18 09:19:26 EDT local time at Aberdeen Proving Ground, United States [?]
Course: 238° – heading 511°
Speed: 6 MPH
Dimensions: length 14 m width 6 m draught 0.0 m
Last path: WDH4703>ais via K3ARS
Positions stored: 170
Stations near current position of CONCRETE IDEA - show more
callsign distance last heard - EST      callsign distance last heard - EST
WOLF RIVER2.7 miles 239°2017-02-25 11:01:13 N3DOU-93.5 miles 96°2017-02-24 13:26:48
N3DOU-73.6 miles 100°2017-02-24 17:10:47 N3DOU-13.6 miles 100°2017-02-25 10:59:50
DIAMOND COAST4.6 miles 234°2017-02-25 11:05:13 147.375-K6.3 miles 160°2017-02-25 11:03:20
RADIANCE6.9 miles 56°2017-02-11 19:43:19 POINT COMFORT7.1 miles 54°2017-02-07 16:09:02
KAPG7.1 miles 343°2017-02-22 00:27:08 IRLP-82778.8 miles 296°2017-02-25 10:24:17
EW17629.8 miles 296°2017-02-25 11:04:51 K3ARS-159.9 miles 179°2017-02-25 10:46:31
K3ARS-109.9 miles 179°2017-02-25 10:46:31 K3ARS10.2 miles 168°2017-02-25 11:05:13
KC3HRV-910.5 miles 328°2017-02-09 14:33:53 KARS-MTG11.0 miles 159°2017-02-01 19:45:13
HUDSON11.1 miles 51°2017-02-25 10:57:12 N3TNZ-911.2 miles 302°2017-02-25 10:44:52
K3JB-911.2 miles 161°2017-02-25 09:59:50 AC0LP-111.6 miles 344°2017-02-24 16:18:21
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.
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