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 weather station C3KSW - show graphs
Comment: AmbientCWOP.com
Location: 39°05.05' N 77°08.37' W - locator FM19KC30GE - show map
0.7 miles East bearing 89° from Rockville, Montgomery County, Maryland, United States [?]
3.0 miles North bearing 338° from North Bethesda, Montgomery County, Maryland, United States
14.2 miles Northwest bearing 337° from Washington, D. C., Washington, D.C., United States
31.6 miles Southwest bearing 243° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2023-07-20 20:19:40 EDT (307d 2h32m ago)
2023-07-20 20:19:40 EDT local time at Rockville, United States [?]
Last path: C3KSW>A via TCPIA,AMBC-2,qAR,KC2TER-11
Positions stored: 1
Stations near current position of C3KSW - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
FW38190.7 miles 269°2024-05-22 22:49:23 WM3M-101.9 miles 156°2024-05-22 22:47:47
146.955-2.5 miles 150°2024-05-22 22:50:54 NS2P-92.5 miles 296°2024-05-21 18:25:42
K4DKC2.8 miles 306°2024-05-22 16:51:07 EW77743.0 miles 183°2024-05-22 22:50:25
KB3MHL-93.1 miles 309°2024-05-08 08:47:58 FW58723.2 miles 219°2024-05-22 22:45:35
N3BBF B3.4 miles 289°2024-05-17 00:31:52 N3BBF-B3.4 miles 289°2024-05-17 00:31:52
N3BBF-N3.4 miles 289°2024-05-16 22:17:20 FW61653.6 miles 108°2024-05-22 22:47:46
EW53094.3 miles 135°2024-05-22 22:51:31 WI3J4.3 miles 340°2024-05-20 12:12:39
DW39494.6 miles 304°2024-05-22 22:36:12 W3LDB-74.7 miles 124°2024-05-11 21:42:00
WJ3F-75.2 miles 325°2024-05-22 20:31:05 N3JFW5.2 miles 321°2024-05-13 08:57:01
N3QYJ-105.3 miles 152°2024-05-19 12:59:20 Tleektown5.5 miles 145°2024-05-22 22:50:07
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