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 W4TDO-7 - show graphs
Comment: 146.520MHz W4TDO.COM
Mic-E message: In service
Location: 34°30.00' N 112°30.00' W - locator DM34SM00AA - show map
5.3 km Southwest bearing 213° from Prescott, Yavapai County, Arizona, United States [?]
18.8 km Southwest bearing 238° from Prescott Valley, Yavapai County, Arizona, United States
110.7 km North bearing 345° from Glendale, Maricopa County, Arizona, United States
123.2 km Northwest bearing 333° from Scottsdale, Maricopa County, Arizona, United States
Last position: 2024-11-01 00:53:11 UTC (101d 9h15m ago)
2024-10-31 17:53:11 MST local time at Prescott, United States [?]
Altitude: 1144 m
Position ambiguous: Precision reduced at transmitter by 4 digits, position resolution approximately 111.1 km.
Course: 125°
Speed: 0 km/h
Device: Kenwood: TH-D75 (ht)
Last path: W4TDO-7>S4ZZZZ via UNION,WIDE1*,WIDE2-1,qAR,AA7ON-1 (good)
Positions stored: 16
Other SSIDs: W4TDO-i W4TDO
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