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 AD4HS-9 - show graphs
Map loading...
Comment: 147.300MHz
Mic-E message: Off duty
Location: 39°13.74' N 77°32.99' W - locator FM19FF44AX - show map - static map
3.3 miles South bearing 190° from Point of Rocks, Frederick County, Maryland, United States [?]
6.9 miles Southwest bearing 215° from Adamstown, Frederick County, Maryland, United States
35.9 miles Northwest bearing 310° from Washington, D. C., Washington, D.C., United States
50.3 miles West bearing 265° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2017-04-06 15:06:34 EDT (83d 7h7m ago)
2017-04-06 15:06:34 EDT local time at Point of Rocks, United States [?]
Altitude: 404 ft
Course: 241°
Speed: 7 MPH
Device: Kenwood: TM-D710 (rig)
Last path: AD4HS-9>SYQS7T via KV3B-1*,WIDE1*,WIDE2-1,qAR,KC3BHK-1 (good)
Positions stored: 13036
Stations near current position of AD4HS-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
DW83622.4 miles 73°2017-06-28 22:12:18 CW54983.0 miles 323°2017-06-28 22:13:11
K3MSR3.6 miles 19°2017-06-28 20:28:00 LWXSVRI7A4.4 miles 280°2017-06-19 14:50:57
KK4UYT-54.6 miles 235°2017-06-11 12:23:09 W4RAH-14.7 miles 327°2017-06-28 22:13:19
W3OW5.7 miles 301°2017-06-28 22:04:24 KG4TIH-76.1 miles 275°2017-06-24 12:26:05
W5ODJ-56.2 miles 275°2017-06-24 19:59:27 W5ODJ-116.2 miles 275°2017-06-28 22:12:42
N3OBQ-86.5 miles 327°2017-05-30 13:02:18 KC3JAH6.8 miles 329°2017-06-04 20:50:00
DW91746.9 miles 291°2017-06-28 22:13:23 CW53767.6 miles 182°2017-06-28 22:11:03
DW92097.7 miles 197°2017-06-28 22:08:22 KE4IHG C7.7 miles 184°2017-06-14 15:47:11
KE4IHG-C7.7 miles 184°2017-06-14 15:47:21 K5DAT-107.7 miles 182°2017-06-28 22:02:40
K5DAT-37.7 miles 182°2017-06-28 21:48:36 K5DAT-157.7 miles 182°2017-06-27 20:28:42
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