Location:	37°57.70' N 121°57.08' W - ตำแหน่ง CM97AX50UT - show map 2.7 km ตะวันตกเฉียงเหนือ bearing 329° มาจาก Clayton, Contra Costa County, California, United States [?] 7.2 km ตะวันออก bearing 105° มาจาก Concord, Contra Costa County, California, United States 46.0 km ตะวันออกเฉียงเหนือ bearing 63° มาจาก San Francisco, San Francisco County, California, United States 69.3 km เหนือ bearing 356° มาจาก San Jose, Santa Clara County, California, United States
Last position:	2025-06-04 20:18:48 UTC (53s ago) 2025-06-04 13:18:48 PDT เวลาท้องถิ่น Clayton, United States [?]
ข้อมูลอากาศ (WX) ล่าสุด:	2025-06-04 20:13:47 UTC (5m54s ago) – show weather charts 27.8 °C 41% 1009.2 mbar 0.4 m/s เหนือ
Last path:	EW6555>APN000 via TCPXX*,qAX,CWOP-6
Positions stored:	3

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.