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 BI4TRC-3 - show graphs
Map loading...
Comment: APRS DIGI 144.640Mhz 4.3V54% 32.8C
Last status: F52801090C4E25 APRS-51DW300-20180417
Location: 31°56.70' N 120°18.70' E - locator PM01DW76JT - show map - static map
3.2 miles Northeast bearing 32° from Yaosai, Jiangsu Sheng, China [?]
5.8 miles North bearing 345° from Yunting, Jiangsu Sheng, China
47.3 miles North bearing 339° from Suzhou, Jiangsu Sheng, China
83.9 miles Northwest bearing 307° from Shanghai, Shanghai Shi, China
Last position: 2018-09-27 09:20:38 EDT (19d 13h17m ago)
2018-09-27 21:20:38 CST local time at Yaosai, China [?]
Last path: BI4TRC-3>AP51DW via TCPIP*,qAC,T2TOKYO3
Positions stored: 10
Other SSIDs: BI4TRC BI4TRC-10 BI4TRC-13 BI4TRC-4 BI4TRC-5 BI4TRC-7 BI4TRC-9
Last heard a station directly: 2018-06-22 18:41:52 EDT (116d 3h56m ago)
Stations near current position of BI4TRC-3 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
BI4TRC-100.4 miles 263°2018-10-13 22:24:52 BI4TRC-90.4 miles 262°2018-10-16 09:34:55
BI4TRC-130.4 miles 286°2018-10-16 22:37:28 BI4VNM B1.4 miles 208°2018-10-16 22:25:56
BI4VNM-B1.4 miles 208°2018-10-16 22:26:06 BI4VNM-71.4 miles 211°2018-09-21 10:33:05
BI4VNM-101.4 miles 211°2018-10-05 22:12:24 BI4VNM-131.5 miles 212°2018-10-06 03:52:04
BD4TS-93.5 miles 239°2018-10-16 22:36:25 BH4TNQ-103.7 miles 246°2018-10-15 00:06:24
BH4TNQ3.7 miles 245°2018-10-15 04:06:12 BH4TNQ-53.7 miles 245°2018-10-15 04:59:41
BH4QBV-139.1 miles 246°2018-10-16 11:15:06 BD4TS-79.3 miles 249°2018-10-04 03:11:43
BH4QKZ-511.5 miles 139°2018-10-05 05:39:34 BY4SHX-1016.3 miles 94°2018-10-16 22:34:40
BY4SHX-1316.3 miles 94°2018-10-16 22:34:43 BH4SCF-816.3 miles 94°2018-10-16 19:22:06
BI4SCC-1016.4 miles 114°2018-10-07 05:56:44 BH4QFI-1018.4 miles 272°2018-10-16 22:35:11
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