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 AD7ZJ-11 - show graphs
Comment: Txc=034
Location: 34°40.28' N 112°24.07' W - locator DM34TQ11UC - show map
10.7 km Southeast bearing 153° from Chino Valley, Yavapai County, Arizona, United States [?]
12.9 km East bearing 99° from Williamson, Yavapai County, Arizona, United States
15.8 km Northeast bearing 23° from Prescott, Yavapai County, Arizona, United States
90.0 km Southwest bearing 230° from Flagstaff, Coconino County, Arizona, United States
Last position: 2025-08-20 02:27:42 UTC (1d 14h20m ago)
2025-08-19 19:27:42 MST local time at Chino Valley, United States [?]
Altitude: 1617 m
Course: 223°
Speed: 111 km/h
Last telemetry: 2025-08-20 02:26:42 UTC (1d 14h21m ago) – show telemetry
Ch 1: 1233, Ch 2: 102, Ch 3: 0, Ch 4: 0, Ch 5: 0
 1     2     3     4     5     6     7     8 
Device: Unknown: Unknown
Last path: AD7ZJ-11>APRS via WIDE2-1,qAR,KI6GPG-2 (good)
Positions stored: 3171
Other SSIDs: AD7ZJ-7 AD7ZJ-9
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