Comment:	KM4HRR SharkRF 4 Pro
Location:	38°56.25' N 77°17.50' W - ตำแหน่ง FM18IW45XA - show map 547.4 m ตะวันตกเฉียงใต้ bearing 242° มาจาก Wolf Trap, Fairfax County, Virginia, United States [?] 5.5 km ตะวันออกเฉียงใต้ bearing 129° มาจาก Reston, Fairfax County, Virginia, United States 22.6 km ตะวันตก bearing 282° มาจาก Washington, D. C., Washington, D.C., United States 70.5 km ตะวันตกเฉียงใต้ bearing 236° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-08-31 23:25:17 UTC (100d 13h4m ago) 2025-08-31 19:25:17 EDT เวลาท้องถิ่น Wolf Trap, United States [?]
Altitude:	0 m
Device:	SharkRF: openSPOT4 (gadget)
Last path:	KM4HRR>APOSB4 via TCPIP*,qAC,T2PERTH
Positions stored:	3
Other SSIDs:	KM4HRR-9 KM4HRR-7 KM4HRR-i
Last heard a station directly:	2025-05-25 15:25:34 UTC (198d 21h4m ago)

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.