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 W-4 - show graphs
Map loading...
Comment: /TinyTrak4 Alpha
Mic-E message: Off duty
Location: 33°55.84' N 117°39.78' W - locator DM13EW03KI - show map - static map
3.9 miles Southeast bearing 138° from Los Serranos, San Bernardino County, California, United States [?]
5.8 miles South bearing 165° from Chino, San Bernardino County, California, United States
32.2 miles East bearing 69° from Long Beach, Los Angeles County, California, United States
34.3 miles East bearing 104° from Los Angeles, Los Angeles County, California, United States
Last position: 2018-10-29 20:02:31 EDT (20d 12h12m ago)
2018-10-29 17:02:31 PDT local time at Los Serranos, United States [?]
Altitude: 607 ft
Course: 263°
Last WX report: 2018-07-29 01:15:27 EDT (113d 6h59m ago) – show weather charts
74 °F 68% 996.0 mbar 0.0 MPH Northeast
Last path: W-4>SSUUXT via KELLER,WIDE1,KF6ILA-10,WIDE2*,qAO,W3SN-10 (good)
Positions stored: 12
Stations near current position of W-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
DW25852.5 miles 309°2018-11-19 07:10:04 CW09872.8 miles 302°2018-11-19 06:53:29
W5MIN-13.2 miles 55°2018-10-21 16:35:26 76MIN-13.3 miles 56°2018-11-07 00:39:21
KM6BCD3.9 miles 8°2018-11-18 02:09:55 KC6ZZG B4.4 miles 212°2018-11-16 17:45:10
KC6ZZG-B4.4 miles 212°2018-11-16 17:45:20 KC6ZZG4.4 miles 212°2018-11-18 22:46:55
KC6ZZG-DP4.4 miles 212°2018-11-18 22:38:41 KM6ESE-94.5 miles 67°2018-10-30 11:29:56
K7BOH-94.5 miles 93°2018-11-04 12:04:13 KM6QQB-N4.7 miles 321°2018-11-19 07:03:00
KM6QQB4.8 miles 315°2018-11-18 20:26:38 KD6IOW4.9 miles 211°2018-11-14 19:36:25
DW04905.0 miles 223°2018-11-19 07:10:29 W6ELL5.2 miles 246°2018-11-19 07:02:17
N6MIK-25.2 miles 219°2018-11-19 07:12:01 N6MIK5.2 miles 220°2018-11-19 07:07:19
N6MIK-95.4 miles 222°2018-10-21 18:38:02 N6UK5.5 miles 355°2018-11-18 17:17:23
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