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 object STM_Shrf - show graphs
Map loading...
Source callsign: W3SMD-1
Comment: STM_Sheriff, 23150 Leonard Hall Dr, Leonardtown, MD 20650, (301) 475-8008
Location: 38°18.36' N 76°37.66' W - locator FM18QH43QK - show map - static map
1.1 miles Northeast bearing 23° from Leonardtown, Saint Mary's County, Maryland, United States [?]
6.5 miles West bearing 273° from California, Saint Mary's County, Maryland, United States
46.3 miles Southeast bearing 151° from Washington, D. C., Washington, D.C., United States
68.0 miles South bearing 181° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2017-02-22 12:38:49 EST (5m42s ago)
2017-02-22 12:38:49 EST local time at Leonardtown, United States [?]
Last path: W3SMD-1>APWW10 via TCPIP*,qAC,T2UK
Positions stored: 2
Others sourced by W3SMD-1: 145.39-MD 145.390MD 146.640MD 147.150MD 147.420MD 147.510MD 223.50 223.500 223.500MD 443.05MD 443.1875 443.18750 443.600MD 447.075MD Calvert Calv_Shrf Char_Shrf Chas_Shrf DMR312402 EL-006416 EL-385805 EL-6416 EL.006416 LaPlata MEDSTAR MSP_Brk-H MSP_Brk-U MSP_Brk_T Sohrn MD SoMDHosp Souhrn MD SouthrnMD Soutrn MD St.Mary's Sthrn MD UMD REGL UMD Rgnl W1JD
Stations near current position of STM_Shrf - show more
callsign distance last heard - EST      callsign distance last heard - EST
MSP_Brk_T274.8 yards 306°2017-02-22 12:16:19 St.Mary's0.5 miles 251°2017-02-22 12:39:19
W3GI-71.8 miles 271°2017-02-21 12:35:13 K3GJ-152.8 miles 78°2017-02-22 12:31:34
K3GJ-13.0 miles 86°2017-02-22 12:27:14 K3GJ-23.0 miles 86°2017-02-22 12:27:14
KC3ERI-i3.2 miles 145°2017-02-19 15:19:55 N3KTX-33.3 miles 306°2017-02-22 12:37:03
N1HNP-93.9 miles 59°2017-02-05 22:52:07 DW86784.0 miles 48°2017-02-13 11:18:18
N3PX-A4.1 miles 48°2017-02-22 12:32:06 N3PX A4.1 miles 48°2017-02-22 12:32:20
EW17605.9 miles 213°2017-02-22 12:31:56 N1LID-96.0 miles 129°2017-02-19 16:34:57
KB3HAM-i6.0 miles 129°2017-02-19 16:37:36 EL-3858056.4 miles 141°2017-02-22 12:34:49
DW02826.6 miles 343°2017-02-22 12:43:10 N8HTG7.5 miles 107°2017-02-22 12:40:06
CW63447.9 miles 94°2017-02-22 12:34:55 K3NAL-19.3 miles 101°2017-02-22 12:35:26
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