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 weather station CW4622 - show graphs
Map loading...
Location: 37°51.00' N 121°57.17' W - locator CM97AU54PA - show map - static map
3.2 miles Northeast bearing 53° from Danville, Contra Costa County, California, United States [?]
4.3 miles East bearing 90° from Alamo, Contra Costa County, California, United States
26.0 miles East bearing 78° from San Francisco, San Francisco County, California, United States
35.4 miles North bearing 355° from San Jose, Santa Clara County, California, United States
Last position: 2017-02-22 09:09:34 EST (1h27m ago)
2017-02-22 06:09:34 PST local time at Danville, United States [?]
Last WX report: 2017-02-22 09:09:34 EST (1h27m ago) – show weather charts
40 °F 91% 1015.6 mbar 0.9 MPH North
Device: Unknown: Unknown
Last path: CW4622>APRS via TCPXX*,qAX,CWOP-4
Positions stored: 1
Stations near current position of CW4622 - show more
callsign distance last heard - EST      callsign distance last heard - EST
EW65412.2 miles 203°2017-02-22 10:35:19 W6CX C2.9 miles 40°2017-02-22 10:17:36
W6CX-C2.9 miles 40°2017-02-22 10:17:21 147.06+MD2.9 miles 40°2017-02-22 10:36:53
W6SAS3.3 miles 132°2017-02-22 10:36:40 AI6AT3.4 miles 283°2017-02-12 23:30:05
AC6JA4.1 miles 143°2017-02-09 18:11:03 EW39754.1 miles 261°2017-02-22 10:34:04
W6CX-34.1 miles 45°2017-02-22 10:31:18 EW22664.5 miles 198°2017-02-22 10:10:31
KH2SR-55.2 miles 219°2017-02-21 15:06:07 EW16285.3 miles 302°2017-02-22 10:35:04
KK6Q-96.0 miles 328°2017-01-31 18:02:38 KC6SSM-96.2 miles 185°2017-02-22 10:36:31
K9BDG6.2 miles 306°2017-01-31 23:48:37 FW02586.3 miles 319°2017-02-22 10:33:08
KJ6APE-96.3 miles 326°2017-02-21 10:55:23 K6BMD-96.4 miles 315°2017-02-22 10:34:35
DW42016.4 miles 177°2017-02-22 10:10:03 K6WL6.8 miles 171°2017-02-22 10:27:14
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.
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