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 AF4PM-9 - show graphs Bookmark and Share
Map loading...
Mic-E message: In service
Location: 38°56.75' N 77°09.07' W - locator FM18KW16UX - show map - static map
4.8 miles Northeast bearing 43° from Idylwood, Fairfax County, Virginia, United States [?]
5.2 miles Northeast bearing 46° from Dunn Loring, Fairfax County, Virginia, United States
7.1 miles Northwest bearing 300° from Washington, Washington, D.C., United States
37.4 miles Southwest bearing 231° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2012-04-23 21:31:37 UTC (33d 9h44m ago)
2012-04-23 17:31:37 EDT local time at Idylwood, United States [?]
Course: 221°
Speed: 4 MPH
Device: Kenwood: TM-D700 (rig)
Last path: AF4PM-9>S8UV7U via KV3B-2*,WIDE1*,NV4FM-5*,WIDE2*,qAR,KG4LAA (good)
Positions stored: 44
Stations near current position of AF4PM-9 - show more
callsign distance last heard - UTC      callsign distance last heard - UTC
KN4TD0.4 miles 258°2012-05-25 22:38:28 DL6GCW-12.4 miles 56°2012-05-26 07:22:52
KG4ICG-142.7 miles 331°2012-05-23 09:51:57 N3MXX-72.7 miles 249°2012-05-24 22:48:26
RAFALE2.9 miles 116°2012-05-14 12:20:14 KG4LAA3.0 miles 232°2012-05-27 07:01:47
KJ4UBX3.1 miles 148°2012-05-26 17:11:55 KJ4UBX-73.1 miles 154°2012-05-21 20:40:56
DW82213.3 miles 201°2012-05-27 07:11:45 DW62793.3 miles 65°2012-05-27 07:09:22
W3YTS-23.6 miles 36°2012-05-17 13:03:38 W3YTS-13.6 miles 36°2012-05-26 23:08:54
KB3UJQ-63.7 miles 85°2012-05-27 01:39:40 AG4JW3.9 miles 171°2012-05-27 07:10:40
KB3FRX3.9 miles 357°2012-05-26 19:34:04 W3BCW4.3 miles 11°2012-05-11 11:28:30
CW97344.3 miles 357°2012-05-10 02:12:40 NV4FM-54.4 miles 232°2012-05-27 07:12:59
NV4FM A4.5 miles 231°2012-05-27 07:02:06 NV4FM AD4.5 miles 231°2012-05-27 07:02:06
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 · Maatana