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 BY4XRA-1 - show graphs
Comment: Lianyungang APRS_Digi 144.640MHz 13.6V
Location: 34°38.92' N 119°17.67' E - locator OM94PP55IQ - show map
3.7 km South bearing 185° from Chaoyang, Jiangsu Sheng, China [?]
5.6 km East bearing 82° from Huaguoshan, Jiangsu Sheng, China
13.5 km Northeast bearing 66° from Xinpu, Jiangsu Sheng, China
120.5 km North bearing 12° from Huaiyin, Jiangsu Sheng, China
Last position: 2025-02-11 01:28:48 UTC (9m34s ago)
2025-02-11 09:28:48 CST local time at Chaoyang, China [?]
Last path: BY4XRA-1>AP51DW via TCPIP*,qAS,BD4XBH
Positions stored: 10
Last heard a station directly: 2025-01-05 07:10:11 UTC (36d 18h28m ago)
Normal receiver range estimate: 300 km (Updated: 2021-09-30 22:49:33 UTC)
Stations which heard BY4XRA-1 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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