Source callsign:	W4HFH-S
Comment:	440 Voice 442.060 +5.00
Location:	38°49.36' N 77°06.33' W - locator FM18KT77IK - show map 5.4 km West bearing 291° from Alexandria, City of Alexandria, Virginia, United States [?] 9.3 km West bearing 273° from Glassmanor, Prince George's County, Maryland, United States 10.0 km Southwest bearing 217° from Washington, D. C., Washington, D.C., United States 67.2 km Southwest bearing 219° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-10-02 16:38:53 UTC (12m8s ago) 2025-10-02 12:38:53 EDT local time at Alexandria, United States [?]
Last path:	W4HFH-S>APJIO4 via TCPIP*,qAC,W4HFH-GS
Positions stored:	3
Others sourced by W4HFH-S:	W4HFH A W4HFH AD W4HFH C

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.