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 W3HRD-7 - show graphs
Comment: W3HRD HT
Location: 39°04.14' N 77°09.93' W - locator FM19KB06DN - show map - static map
2.0 km Southwest bearing 213° from Rockville, Montgomery County, Maryland, United States [?]
5.4 km South bearing 184° from Derwood, Montgomery County, Maryland, United States
22.3 km Northwest bearing 330° from Washington, D. C., Washington, D.C., United States
53.6 km Southwest bearing 243° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2022-11-20 19:46:30 UTC (76d 11h12m ago)
2022-11-20 14:46:30 EST local time at Rockville, United States [?]
Altitude: 33 m
Course: 206°
Speed: 0 km/h
Last path: W3HRD-7>APAT81-1 via KV3B-1,WIDE1*,WIDE2-1,qAR,W4VA-10 (good)
Positions stored: 36
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 · AIS sites · Service status · Database statistics · Advertising on · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS