Comment:	w4stj@earthlink.net
Location:	18°20.10' N 64°57.13' W - ตำแหน่ง FK78MI50RJ - show map 2.4 km ตะวันตก bearing 251° มาจาก Charlotte Amalie, Saint Thomas Island, U.S. Virgin Islands [?] 16.7 km ตะวันตก bearing 271° มาจาก Cruz Bay, Saint John Island, U.S. Virgin Islands 106.1 km ตะวันออก bearing 93° มาจาก Carolina, Carolina, Puerto Rico 116.2 km ตะวันออก bearing 84° มาจาก Caguas, Caguas, Puerto Rico
Last position:	2025-06-03 16:58:01 UTC (3d 21h47m ago) 2025-06-03 12:58:01 AST เวลาท้องถิ่น Charlotte Amalie, U.S. Virgin Islands [?]
Altitude:	-25 m
Device:	Open Source: APRSdroid (app, Android)
Last path:	W4STJ-7>APDR16 via TCPIP*,qAC,T2NORWAY
Positions stored:	20
Other SSIDs:	W4STJ-9 W4STJ W4STJ-8 W4STJ-4

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.