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 N1DDH-9 - show graphs
Comment: 443.850MHz T088 +500 Driving with FTM-500D
Mic-E message: In service
Location: 42°52.56' N 71°27.67' W - locator FN42GV40PF - show map
2.9 km Northeast bearing 65° from Merrimack, Hillsborough County, New Hampshire, United States [?]
3.8 km Northeast bearing 23° from Litchfield, Hillsborough County, New Hampshire, United States
66.2 km Northwest bearing 330° from Boston, Suffolk County, Massachusetts, United States
69.1 km Northwest bearing 331° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2025-02-26 21:27:28 UTC (11d 3h43m ago)
2025-02-26 16:27:28 EST local time at Merrimack, United States [?]
Altitude: 67 m
Course: 358°
Speed: 9 km/h
Device: Yaesu: FTM-500D (rig)
Last path: N1DDH-9>T2UR5V via WIDE1-1,WIDE2-1,qAR,W1DMR-3 (good)
Positions stored: 775
Other SSIDs: N1DDH N1DDH-10 N1DDH-4 N1DDH-7 N1DDH-4 N1DDH-i
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