Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station K6JRO-3 - show graphs
Location: 37°41.46' N 120°57.50' W - locator CM97MQ55AU - show map
8.2 km North bearing 17° from Bystrom, Stanislaus County, California, United States [?]
9.1 km North bearing 19° from Shackelford, Stanislaus County, California, United States
91.3 km Northeast bearing 64° from San Jose, Santa Clara County, California, United States
148.3 km Northwest bearing 315° from Fresno, Fresno County, California, United States
Last position: 2026-01-10 19:42:12 UTC (21d 23h57m ago)
2026-01-10 11:42:12 PST local time at Bystrom, United States [?]
Altitude: 40 m
Course: 214°
Speed: 0 km/h
Device: Unknown: Unknown
Last path: K6JRO-3>APRS via SUMMIT*,WIDE2-2,qAR,WA6ODP-3 (good)
Positions stored: 1
Other SSIDs: K6JRO-1 K6JRO-2
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS