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APRS station AA4SI-9 - show graphs
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Comment: 147.240MHz
Mic-E message: In service
Location: 38°38.50' N 77°19.40' W - locator FM18IP14EA - show map - static map
8.2 km North bearing 3° from Dumfries, Prince William County, Virginia, United States [?]
9.4 km Northwest bearing 328° from Cherry Hill, Prince William County, Virginia, United States
37.6 km Southwest bearing 222° from Washington, D. C., Washington, D.C., United States
94.7 km Southwest bearing 221° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2021-06-09 17:57:28 UTC (133d 17h20m ago)
2021-06-09 13:57:28 EDT local time at Dumfries, United States [?]
Altitude: 88 m
Course: 183°
Speed: 6 km/h
Device: Kenwood: TM-D710 (rig)
Last path: AA4SI-9>S8SX5P via W4KEL-12*,WIDE1*,WIDE2-1,qAR,KA4RRU (good)
Positions stored: 43329
Other SSIDs: AA4SI-7
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.
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