Location:	39°07.30' N 77°12.62' W - ตำแหน่ง FM19JC49SE - show map 4.3 km ตะวันตก bearing 276° มาจาก Derwood, Montgomery County, Maryland, United States [?] 6.5 km ตะวันตกเฉียงเหนือ bearing 310° มาจาก Rockville, Montgomery County, Maryland, United States 29.3 km ตะวันตกเฉียงเหนือ bearing 329° มาจาก Washington, D. C., Washington, D.C., United States 54.8 km ตะวันตก bearing 250° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-06-26 00:25:25 UTC (9m19s ago) 2025-06-25 20:25:25 EDT เวลาท้องถิ่น Derwood, United States [?]
ข้อมูลอากาศ (WX) ล่าสุด:	2025-06-26 00:25:25 UTC (9m19s ago) – show weather charts 27.2 °C 79% 1017.3 mbar 0.0 m/s ตะวันตกเฉียงเหนือ
Device:	Unknown: Unknown
Last path:	DW3949>APRS via TCPXX*,qAX,CWOP-4
Positions stored:	3

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.