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 KC3SI-9 - show graphs Bookmark and Share
Map loading...
Mic-E message: In service
Location: 39°05.19' N 76°50.93' W - locator FM19NC80DS - show map - static map
0.9 miles South bearing 182° from Laurel, Prince George's County, Maryland, United States [?]
1.2 miles North bearing 4° from South Laurel, Prince George's County, Maryland, United States
16.6 miles Northeast bearing 37° from Washington, Washington, D.C., United States
18.9 miles Southwest bearing 222° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2012-01-04 22:13:02 UTC (40d 48m ago)
2012-01-04 17:13:02 EST local time at Laurel, United States [?]
Altitude: 0 ft
Course: 297°
Speed: 4 MPH
Device: Kenwood: TM-D700 (rig)
Last path: KC3SI-9>S9PU1Y via RELAY,WIDE,qAR,KA1FFO-1 (suboptimal)
It would be advisable to replace RELAY with WIDE1-1. WIDE1-1,WIDE2-1 is generally a good path.
Positions stored: 475
Stations near current position of KC3SI-9 - show more
callsign distance last heard - UTC      callsign distance last heard - UTC
AC1K-90.6 miles 24°2012-01-26 19:25:09 AC1K-150.6 miles 24°2012-01-26 19:24:58
NF8I-90.6 miles 335°2012-02-11 21:28:12 F8I-90.7 miles 27°2012-02-11 21:20:30
N8PK-91.6 miles 105°2012-02-01 13:33:32 DW05013.2 miles 5°2012-02-13 22:52:04
DW15903.6 miles 350°2012-02-13 22:50:55 WU3K-94.3 miles 18°2012-02-10 21:12:57
N3BZH-54.6 miles 77°2012-02-13 11:46:15 KJ5HY-14.8 miles 330°2012-02-13 22:46:04
CW04154.8 miles 13°2012-02-13 22:55:14 KC2BSM-94.8 miles 332°2012-02-10 23:40:19
DW67465.4 miles 353°2012-02-13 22:59:03 95Sat2125.6 miles 236°2012-02-09 23:00:12
DW29755.8 miles 240°2012-02-13 22:57:15 W8LYJ-95.9 miles 351°2012-02-11 22:27:02
DW13576.5 miles 214°2012-02-13 22:57:56 495OLat956.9 miles 230°2012-02-13 08:38:12
N3PPK7.0 miles 357°2012-02-13 22:51:14 K1BZ-17.2 miles 355°2012-02-13 22:21:09
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