Comment:	monitoring 144.200 ssb/cw 146.350 fm
Location:	38°10.48' N 76°53.15' W - ตำแหน่ง FM18NE31QW - show map 10.0 km ใต้ bearing 201° มาจาก Cobb Island, Charles County, Maryland, United States [?] 11.2 km ตะวันออกเฉียงใต้ bearing 143° มาจาก Colonial Beach, Westmoreland County, Virginia, United States 80.8 km ใต้ bearing 166° มาจาก Arlington, Arlington County, Virginia, United States 81.1 km ใต้ bearing 171° มาจาก Washington, D. C., Washington, D.C., United States
Last position:	2025-10-17 11:30:56 UTC (52d 19h28m ago) 2025-10-17 07:30:56 EDT เวลาท้องถิ่น Cobb Island, United States [?]
Device:	KJ4ERJ: APRSIS32 (software, Windows)
Last path:	KA3OCS-1>APWW11 via TCPIP*,qAC,T2CHILE
Positions stored:	27
Items and objects originated:	146.745 WARC
Last heard a station directly:	2025-10-10 18:55:30 UTC (59d 12h3m ago)
Normal receiver range estimate:	160 km (Updated: 2025-09-29 19:08:29 UTC)

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.