Source callsign:	KM4JRF-S
Comment:	70cm Voice (D-Star) 443.00000MHz +0.0000MHz
Location:	39°30.60' N 76°21.60' W - ตำแหน่ง FM19TM62TJ - show map 3.3 km ใต้ bearing 187° มาจาก North Bel Air, Harford County, Maryland, United States [?] 4.4 km ตะวันออก bearing 97° มาจาก Fallston, Harford County, Maryland, United States 32.6 km ตะวันออกเฉียงเหนือ bearing 42° มาจาก Baltimore, City of Baltimore, Maryland, United States 113.4 km ตะวันตกเฉียงใต้ bearing 245° มาจาก Philadelphia, Philadelphia County, Pennsylvania, United States
Last position:	2025-06-11 20:03:35 UTC (8d 17h30m ago) 2025-06-11 16:03:35 EDT เวลาท้องถิ่น North Bel Air, United States [?]
Altitude:	3 m
Last path:	KM4JRF-S>APDG01 via TCPIP*,qAC,KM4JRF-GS
Positions stored:	2

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.