Source callsign:	KJ4ERJ-AP
Comment:	-6 N4FWP !GP!
Location:	39°27.74' N 77°29.72' W - ตำแหน่ง FM19GL00NX - show map 4.9 km เหนือ bearing 8° มาจาก Braddock Heights, Frederick County, Maryland, United States [?] 5.7 km ตะวันตก bearing 277° มาจาก Clover Hill, Frederick County, Maryland, United States 74.4 km ตะวันตกเฉียงเหนือ bearing 328° มาจาก Washington, D. C., Washington, D.C., United States 78.2 km ตะวันตก bearing 284° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-20 05:57:01 UTC (5d 5h32m ago) 2025-12-20 00:57:01 EST เวลาท้องถิ่น Braddock Heights, United States [?]
Last path:	KJ4ERJ-AP>APWW11 via TCPIP*,qAC,T2BC
Positions stored:	4
Others sourced by KJ4ERJ-AP:	GDHILLORG GP-AOMTN GP-BGFLAT GP-BOVINA GP-CAMLBK GP-COMERS GP-EQUNOX GP-GDHILL GP-GRYLCK GP-HWKSBL GP-KATHDN GP-KUWOHI GP-MTWASH GP-ROAN GP-SAMSPT GP-SPRNGR GP-SUGARL GP-WHTRCK

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.