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 AA3SD-7 - show graphs
Map loading...
Comment: MT-AIO
Mic-E message: In service
Location: 42°30.07' N 71°35.23' W - locator FN42EM90MG - show map - static map
409.5 yards West bearing 289° from Harvard, Worcester County, Massachusetts, United States [?]
6.1 miles Northwest bearing 317° from Stow, Middlesex County, Massachusetts, United States
28.6 miles West bearing 290° from Boston, Suffolk County, Massachusetts, United States
29.8 miles Northwest bearing 293° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2017-12-10 13:04:03 EST (317d 16m ago)
2017-12-10 13:04:03 EST local time at Harvard, United States [?]
Altitude: 390 ft
Course: 58°
Last telemetry: 2017-12-10 13:04:03 EST (317d 16m ago) – show telemetry
Ch 1: 373, Ch 2: 586, Ch 3: 0, Ch 4: 0, Ch 5: 0
 1     2     3     4     5     6     7     8 
Device: Byonics: TinyTrak3 (tracker)
Last path: AA3SD-7>T2SP0W via WIDE1-1,WIDE2-1,qAR,N3LLO-3 (good)
Positions stored: 70
Other SSIDs: AA3SD-8
Stations near current position of AA3SD-7 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
FW28522.0 miles 121°2018-10-23 14:17:51 KB1EMU-23.9 miles 181°2018-10-22 18:36:47
N8VIM-24.0 miles 76°2018-10-23 05:43:39 EW96624.4 miles 321°2018-10-23 14:20:09
EW99684.4 miles 91°2018-10-23 14:16:52 WA1RHP-55.5 miles 336°2018-10-23 13:41:36
EW90365.8 miles 113°2018-10-23 14:15:35 EW94295.9 miles 120°2018-10-23 14:10:30
KA8SCP6.2 miles 59°2018-10-23 08:28:14 EW79876.4 miles 170°2018-10-23 14:15:36
K1MGY-106.5 miles 69°2018-10-07 13:55:51 K1PLH-26.9 miles 193°2018-09-27 18:39:53
W1AGE6.9 miles 60°2018-10-20 09:44:48 KC1IEG7.2 miles 174°2018-10-19 13:41:35
W1RBO7.2 miles 155°2018-10-23 14:15:07 FW11437.3 miles 10°2018-10-23 14:15:07
EW68557.5 miles 124°2018-10-23 14:18:36 K1IG-38.1 miles 57°2018-10-22 12:44:46
EW77458.1 miles 109°2018-10-23 14:10:17 N1CEO8.2 miles 81°2018-09-23 15:29:05
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