Comment:	aprs.fi for iOS
Location:	39°36.73' N 76°45.61' W - ตำแหน่ง FM19OO86SV - show map 7.7 km ตะวันออก bearing 84° มาจาก Hampstead, Carroll County, Maryland, United States [?] 12.0 km ตะวันออกเฉียงใต้ bearing 117° มาจาก Manchester, Carroll County, Maryland, United States 37.9 km เหนือ bearing 340° มาจาก Baltimore, City of Baltimore, Maryland, United States 83.1 km เหนือ bearing 17° มาจาก Washington, D. C., Washington, D.C., United States
Last position:	2025-12-24 02:24:39 UTC (15d 12h59m ago) 2025-12-23 21:24:39 EST เวลาท้องถิ่น Hampstead, United States [?]
Altitude:	187 m
ความเร็ว:	0 km/h
Last path:	KD4IZ-14>aprs.fi via aprsfi-iOS
Positions stored:	91
Other SSIDs:	KD4IZ-13 KD4IZ-1 KD4IZ KD4IZ-7 KD4IZ-9 KD4IZ-B

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.