Source callsign:	AB3ZW-S
Comment:	2m Voice (D-Star) 144.81500MHz +0.0000MHz
Location:	39°28.32' N 76°19.92' W - ตำแหน่ง FM19UL03DG - show map 2.5 km ตะวันออกเฉียงเหนือ bearing 52° มาจาก Joppatowne, Harford County, Maryland, United States [?] 3.8 km ใต้ bearing 196° มาจาก Bel Air South, Harford County, Maryland, United States 31.4 km ตะวันออกเฉียงเหนือ bearing 50° มาจาก Baltimore, City of Baltimore, Maryland, United States 113.2 km ตะวันตกเฉียงใต้ bearing 242° มาจาก Philadelphia, Philadelphia County, Pennsylvania, United States
Last position:	2025-06-02 21:36:41 UTC (10m21s ago) 2025-06-02 17:36:41 EDT เวลาท้องถิ่น Joppatowne, United States [?]
Altitude:	3 m
Last path:	AB3ZW-S>APDG01 via TCPIP*,qAC,AB3ZW-GS
Positions stored:	1
Others sourced by AB3ZW-S:	AB3ZW B

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.