Source callsign:	K6AEM-S
Comment:	440 Voice 443.20000MHz +0.0000MHz
Location:	37°41.81' N 122°05.64' W - locator CM87WQ87RF - show map 737.9 m Northwest bearing 294° from Castro Valley, Alameda County, California, United States [?] 1.8 km East bearing 82° from Ashland, Alameda County, California, United States 29.9 km East bearing 107° from San Francisco, San Francisco County, California, United States 43.4 km Northwest bearing 336° from San Jose, Santa Clara County, California, United States
Last position:	2025-05-17 22:23:27 UTC (3m35s ago) 2025-05-17 15:23:27 PDT local time at Castro Valley, United States [?]
Altitude:	3 m
Last path:	K6AEM-S>APDG01 via TCPIP*,qAC,K6AEM-GS
Positions stored:	5
Others sourced by K6AEM-S:	0 0

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.