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 KO4NMC-9 - show graphs
Comment: VAQP 2M & 432
Location: 38°54.88' N 77°25.83' W - locator FM18GV89IM - show map
4.0 miles East bearing 96° from South Riding, Loudoun County, Virginia, United States [?]
7.4 miles Southeast bearing 129° from Brambleton, Loudoun County, Virginia, United States
21.2 miles West bearing 274° from Washington, D. C., Washington, D.C., United States
50.9 miles Southwest bearing 240° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-03-19 15:55:46 EDT (73d 23h3m ago)
2024-03-19 15:55:46 EDT local time at South Riding, United States [?]
Altitude: 323 ft
Course: 187°
Speed: 8 MPH
Device: Brent Hildebrand, KH2Z: APRS+SA (software)
Last path: KO4NMC-9>APSK21 via TCPIP*,qAC,T2CSNGRAD
Positions stored: 5059
Stations near current position of KO4NMC-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
DW88681.4 miles 79°2024-06-01 14:54:37 EW41831.5 miles 123°2024-05-08 19:42:19
ALZMOT-22.0 miles 199°2024-05-05 18:09:32 AT4022.3 miles 53°2024-06-01 14:56:30
KF4LWX2.6 miles 175°2024-06-01 14:35:15 N4CV-22.7 miles 8°2024-06-01 14:56:33
KC3CNQ-73.1 miles 339°2024-05-31 07:10:07 KO4SSD-23.3 miles 342°2024-05-18 19:23:34
K7AJG-73.7 miles 39°2024-05-30 18:28:12 FW65474.1 miles 124°2024-06-01 14:53:44
GW20124.2 miles 19°2024-06-01 14:55:53 KQ4MII-D4.5 miles 57°2024-06-01 14:40:37
AC3H-i4.6 miles 20°2024-05-26 16:25:37 KB3EBA4.6 miles 177°2024-05-29 03:50:55
GW00664.6 miles 138°2024-06-01 14:57:55 W4BOZ-94.9 miles 56°2024-05-15 19:40:42
K4HAX-94.9 miles 143°2024-06-01 14:50:49 CW37665.0 miles 195°2024-06-01 14:46:06
N2LEE-105.1 miles 36°2024-06-01 14:46:09 EW78405.2 miles 212°2024-06-01 14:59:19
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