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 object BI4TRM B - show graphs
Map loading...
Source callsign: BI4TRM-S
Comment: 440 Voice 433.12500MHz +0.0000MHz
Location: 31°34.08' N 120°17.94' E - locator PM01DN56VH - show map - static map
2.5 miles West bearing 274° from Changjianglu, Jiangsu Sheng, China [?]
4.2 miles West bearing 254° from Dongting, Jiangsu Sheng, China
25.2 miles Northwest bearing 316° from Suzhou, Jiangsu Sheng, China
72.4 miles West bearing 290° from Shanghai, Shanghai Shi, China
Last position: 2018-02-14 07:50:43 EST (248d 4h1m ago)
2018-02-14 20:50:43 CST local time at Changjianglu, China [?]
Last path: BI4TRM-S>APDG01 via TCPIP*,qAC,BI4TRM-GS
Positions stored: 2
Stations near current position of BI4TRM B - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
BD4RGV-i1.5 miles 20°2018-10-13 20:42:05 BI4XLS-N1.5 miles 56°2018-10-16 04:47:16
BH4TDV-62.0 miles 93°2018-10-20 09:10:18 BH4TDV-102.0 miles 83°2018-10-20 12:50:57
test-102.3 miles 83°2018-10-09 01:53:00 BD4TJ-52.6 miles 202°2018-09-29 22:41:44
oOCALL-102.7 miles 79°2018-10-07 04:57:10 BH4TDV-133.0 miles 71°2018-10-20 12:51:04
BH4TDV-93.1 miles 74°2018-10-10 23:38:03 BH4TDV-53.1 miles 74°2018-10-07 23:25:07
BH4TDV-123.1 miles 74°2018-10-03 03:47:43 BH4RSN-83.1 miles 243°2018-10-20 05:36:04
BH4RSN3.3 miles 245°2018-10-18 04:47:15 BH4TDV-113.8 miles 132°2018-10-05 04:32:06
PS-BG4TGO4.3 miles 194°2018-10-20 12:00:28 BH4TDV-74.3 miles 61°2018-10-20 09:01:27
BG4JHJ-134.3 miles 61°2018-10-20 12:51:18 B4T-94.3 miles 61°2018-09-26 02:13:10
SP5MGS-94.3 miles 61°2018-10-17 11:32:21 BG4TGO B4.3 miles 194°2018-10-20 11:52:30
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