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 KM4KAF B - show graphs
Map loading...
Source callsign: KM4KAF-S
Comment: 440 Voice 444.81250MHz +0.0000MHz
Location: 38°08.12' N 76°42.72' W - locator FM18PD42NL - show map - static map
6.9 miles Northeast bearing 66° from Montross, Westmoreland County, Virginia, United States [?]
11.1 miles Southeast bearing 140° from Cobb Island, Charles County, Maryland, United States
55.3 miles South bearing 161° from Washington, D. C., Washington, D.C., United States
55.7 miles South bearing 158° from Arlington, Arlington County, Virginia, United States
Last position: 2016-12-27 14:05:59 EST (148d 13h36m ago)
2016-12-27 14:05:59 EST local time at Montross, United States [?]
Last path: KM4KAF-S>APDG01 via TCPIP*,qAC,KM4KAF-GS
Positions stored: 1
Stations near current position of KM4KAF B - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
AKQSVRMbA3.0 miles 145°2017-05-19 19:19:16 DW44273.4 miles 136°2017-05-18 08:15:31
W4GMF-74.3 miles 297°2017-05-21 08:42:13 w4gmf4.6 miles 297°2017-05-15 13:35:53
KK4ZWW-54.6 miles 291°2017-05-13 21:22:37 KG4DTM-75.9 miles 240°2017-05-23 16:57:47
AKQSVRMPA6.5 miles 279°2017-05-19 18:50:16 West EOC7.0 miles 247°2017-05-15 13:35:58
EW17607.0 miles 11°2017-05-25 04:28:22 WAR club7.1 miles 245°2017-05-15 13:35:54
KA3OCS9.8 miles 286°2017-05-19 16:29:01 KA3OCS-19.9 miles 286°2017-05-25 04:42:27
EL-38580510.9 miles 52°2017-05-18 05:10:40 KA3OCS-911.1 miles 284°2017-05-18 12:53:17
DW501811.6 miles 321°2017-05-25 04:33:29 N3JTN11.9 miles 19°2017-05-15 11:02:52
St.Mary's12.3 miles 19°2017-05-18 05:36:40 DW022612.3 miles 337°2017-05-25 04:40:33
KC0ODK-912.6 miles 61°2017-05-24 17:24:53 STM_Shrf12.6 miles 21°2017-05-18 05:43:10
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