Comment:	aprs.fi for iOS
Location:	41°49.52' N 87°51.35' W - ตำแหน่ง EN61BT78GC - show map 5.9 km ตะวันตกเฉียงใต้ bearing 242° มาจาก Berwyn, Cook County, Illinois, United States [?] 8.9 km ตะวันตกเฉียงใต้ bearing 222° มาจาก Oak Park, Cook County, Illinois, United States 17.3 km ตะวันตก bearing 261° มาจาก Chicago, Cook County, Illinois, United States 39.1 km ตะวันออก bearing 79° มาจาก Aurora, Kane County, Illinois, United States
Last position:	2025-09-21 20:50:08 UTC (14h32m ago) 2025-09-21 15:50:08 CDT เวลาท้องถิ่น Berwyn, United States [?]
ความเร็ว:	-4 km/h
Last path:	WA9SGF>aprs.fi via aprsfi-iOS
Positions stored:	78
Other SSIDs:	WA9SGF-2

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.