Comment:	ETC R4 WINLINK
Location:	38°53.00' N 77°01.00' W - ตำแหน่ง FM18LV71XX - show map 2.1 km ตะวันออกเฉียงใต้ bearing 128° มาจาก Washington, D. C., Washington, D.C., United States [?] 10.8 km ตะวันออกเฉียงใต้ bearing 145° มาจาก Friendship Village, Montgomery County, Maryland, United States 57.1 km ตะวันตกเฉียงใต้ bearing 218° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-21 22:10:34 UTC (143d 8h24m ago) 2025-07-21 18:10:34 EDT เวลาท้องถิ่น Washington, D. C., United States [?]
Device:	KA2DDO: YAAC (software)
Last path:	K3BLK>APJYC1 via KV3B-2*,WIDE1*,WIDE2-1,qAR,W4KEL-12
Positions stored:	2
Other SSIDs:	K3BLK-9

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.