Source callsign:	KV3B-S
Comment:	440 Voice 449.2 +5.00 MHz
Location:	39°10.39' N 77°16.30' W - ตำแหน่ง FM19IE71JN - show map 11.4 km ตะวันตกเฉียงเหนือ bearing 303° มาจาก Derwood, Montgomery County, Maryland, United States [?] 14.3 km ตะวันตกเฉียงเหนือ bearing 314° มาจาก Rockville, Montgomery County, Maryland, United States 37.0 km ตะวันตกเฉียงเหนือ bearing 327° มาจาก Washington, D. C., Washington, D.C., United States 58.2 km ตะวันตก bearing 257° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-07 10:54:29 UTC (3m6s ago) 2025-12-07 05:54:29 EST เวลาท้องถิ่น Derwood, United States [?]
Last path:	KV3B-S>APJIO4 via TCPIP*,qAC,KV3B-GS
Positions stored:	1

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.