Source callsign:	WB6DTB-S
Comment:	440 Voice 432.70000MHz +0.0000MHz
Location:	37°59.37' N 121°44.20' W - ตำแหน่ง CM97DX17OL - show map 2.3 km ตะวันตกเฉียงใต้ bearing 247° มาจาก Oakley, Contra Costa County, California, United States [?] 6.3 km ตะวันออก bearing 106° มาจาก Antioch, Contra Costa County, California, United States 64.5 km ตะวันออก bearing 68° มาจาก San Francisco, San Francisco County, California, United States 73.6 km เหนือ bearing 11° มาจาก San Jose, Santa Clara County, California, United States
Last position:	2025-06-20 12:24:12 UTC (5m45s ago) 2025-06-20 05:24:12 PDT เวลาท้องถิ่น Oakley, United States [?]
Last path:	WB6DTB-S>APDG01 via TCPIP*,qAC,WB6DTB-GS
Positions stored:	1918

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.