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 Char_Shrf - show graphs
Map loading...
Source callsign: W3SMD-1
Comment: Charles County Sheriff, 6915 Crain Hwy, La Plata, MD 20646, (301) 932-2222
Location: 38°31.45' N 76°58.94' W - locator FM18MM25CT - show map - static map
0.5 miles Southwest bearing 227° from La Plata, Charles County, Maryland, United States [?]
5.9 miles Southwest bearing 203° from Saint Charles, Charles County, Maryland, United States
25.8 miles South bearing 173° from Washington, D. C., Washington, D.C., United States
56.5 miles South bearing 201° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2016-06-10 07:11:31 EDT (223d 16h40m ago)
2016-06-10 07:11:31 EDT local time at La Plata, United States [?]
Last path: W3SMD-1>APWW10 via TCPIP*,qAC,T2SWEDEN2
Positions stored: 1
Others sourced by W3SMD-1: 145.39-MD 145.390MD 147.150MD 147.420MD 147.510MD 223.50 223.500 223.500MD 443.1875 443.18750 443.600MD 447.075MD Calvert Calv_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 STM_Shrf UMD REGL UMD Rgnl W1JD
Stations near current position of Char_Shrf - show more
callsign distance last heard - EST      callsign distance last heard - EST
Chas_Shrf0.0 yards 0°2017-01-19 22:10:36 LaPlata0.6 miles 58°2017-01-19 22:49:06
MSP_Brk-H2.9 miles 1°2017-01-19 22:12:06 KC0JHR-96.5 miles 11°2017-01-06 22:07:34
KB3KOW-108.2 miles 9°2017-01-19 22:33:36 EW97618.5 miles 220°2017-01-19 14:50:30
EW59698.8 miles 18°2017-01-19 22:45:29 145.390MD8.9 miles 73°2017-01-19 22:42:06
W3TOM-1010.3 miles 346°2016-12-24 14:56:48 443.187511.7 miles 101°2017-01-19 22:43:06
KA3POX12.6 miles 2°2017-01-07 11:30:44 FTWASH12.6 miles 2°2017-01-09 21:00:46
KA3POX-212.6 miles 2°2017-01-16 19:22:24 W3RL-1013.9 miles 5°2017-01-19 22:33:36
KB3KOW-i14.2 miles 25°2017-01-02 12:28:12 443.600MD14.3 miles 27°2017-01-19 22:45:36
147.150MD14.3 miles 27°2017-01-19 22:21:36 447.075MD14.4 miles 55°2017-01-19 22:48:06
147.150+14.4 miles 27°2017-01-16 04:34:19 KA6AKH14.4 miles 346°2017-01-19 22:43:44
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