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*
Web station BI4WTX-7 - show graphs
Map loading...
Comment: 直频438.500MHz
Location: 31°10.00' N 120°30.00' E - locator PM01GE00AA - show map - static map
1.9 miles West bearing 258° from Hengjing, Jiangsu Sheng, China [?]
6.0 miles Southwest bearing 236° from Yuexi, Jiangsu Sheng, China
56.7 miles West bearing 266° from Shanghai, Shanghai Shi, China
63.5 miles North bearing 18° from Hangzhou, Zhejiang Sheng, China
Last position: 2020-07-05 23:28:41 EDT (1d 8h54m ago)
2020-07-06 11:28:41 CST local time at Hengjing, China [?]
Position ambiguous: Precision reduced at transmitter by 3 digits, position resolution approximately 11.5 miles.
Course: 49°
Speed: 1 MPH
Last path: BI4WTX-7>aprs.fi via aprsfi-iOS
Positions stored: 30
Stations near current position of BI4WTX-7 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
BD4SPI-104.1 miles 355°2020-07-07 08:22:47 BD4SPI-134.5 miles 356°2020-07-07 08:22:28
BD4SPI-94.6 miles 350°2020-07-07 08:22:30 BI4TSH5.6 miles 7°2020-06-22 09:45:21
BI4TSH-105.7 miles 4°2020-07-07 08:23:10 BI4TSH-95.7 miles 4°2020-07-04 06:17:41
BI4TSH-76.3 miles 12°2020-07-06 19:53:29 BI4RSI-96.6 miles 62°2020-07-07 08:09:18
BD4SDW-88.0 miles 20°2020-06-17 20:19:20 BD4SQX-88.1 miles 15°2020-07-07 07:14:08
BD4SQS-88.1 miles 15°2020-06-22 06:21:13 BD4SDW8.4 miles 17°2020-07-07 08:23:05
BD4SQI-58.7 miles 69°2020-07-07 07:07:30 BD4SQI-88.7 miles 69°2020-07-04 05:38:04
BH4SRC-79.7 miles 28°2020-06-10 02:52:42 BI4QZW-59.9 miles 23°2020-06-16 06:36:19
BY4SZ-1010.0 miles 48°2020-07-07 08:22:33 EBY4SZ-1010.0 miles 48°2020-07-04 09:20:41
BD4SPA-910.0 miles 82°2020-07-06 21:05:52 BI4QMU-910.1 miles 44°2020-07-07 06:02:38
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