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 W4RMM - show graphs
Location: 39°03.12' N 77°30.24' W - locator FM19FB92ML - show map
2.5 miles North bearing 20° from Broadlands, Loudoun County, Virginia, United States [?]
5.2 miles North bearing 21° from Brambleton, Loudoun County, Virginia, United States
27.3 miles Northwest bearing 293° from Washington, D. C., Washington, D.C., United States
50.5 miles West bearing 251° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-04-18 09:29:24 EDT (51d 6h15m ago)
2024-04-18 09:29:24 EDT local time at Broadlands, United States [?]
Device: Icom: IC-4100 (D-Star)
Last path: W4RMM>API410 via DSTAR*,qAR,NV4FM-C (good)
Positions stored: 7
Stations near current position of W4RMM - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
K7KHA B0.8 miles 87°2024-06-08 15:44:05 K7KHA-B0.8 miles 87°2024-06-08 15:44:15
K7KHA0.9 miles 88°2024-06-08 12:37:56 KK4DLV-71.0 miles 88°2024-06-03 14:01:08
P-WB6EFW1.1 miles 122°2024-06-08 15:01:12 K4KRS-N1.5 miles 123°2024-06-08 15:40:47
K4KRS-72.7 miles 169°2024-06-05 20:06:50 KQ4IBI-42.8 miles 190°2024-05-31 23:03:32
K4HAX-93.1 miles 127°2024-06-08 15:00:16 KK4HJE-123.3 miles 191°2024-05-23 16:07:56
KK4HEJ-113.3 miles 191°2024-05-23 16:07:56 KK4HEJ-43.3 miles 191°2024-05-24 16:01:31
KK4HEJ-73.3 miles 191°2024-06-08 15:33:58 FW73743.5 miles 348°2024-06-08 15:21:05
KM4ZZ-i3.7 miles 5°2024-05-24 13:43:07 W3VPS3.7 miles 213°2024-06-08 15:42:21
LWXMWSw1A4.0 miles 311°2024-05-29 15:32:01 LWXSVR31A4.1 miles 123°2024-05-27 19:32:50
K1APC4.2 miles 329°2024-05-22 15:39:15 WC4J-94.6 miles 339°2024-05-31 13:30:06
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 · iPhone/iPad APRS