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 BA8DX-4 - show graphs
Map loading...
Comment: Si Chuan APRS 438.6500 mhz 14.2V
Location: 30°18.03' N 106°48.44' E - locator OM30JH62VC - show map - static map
5.5 miles South bearing 158° from Shuanghejiedao, Sichuan, China [?]
7.6 miles West bearing 250° from Dingping, Sichuan, China
53.2 miles North bearing 17° from Chongqing, Chongqing Shi, China
54.9 miles Southeast bearing 128° from Nanchong, Sichuan, China
Last position: 2019-11-13 04:55:47 EST (1m24s ago)
2019-11-13 17:55:47 CST local time at Shuanghejiedao, China [?]
Last telemetry: 2018-03-02 14:38:28 EST (620d 14h18m ago) – show telemetry
Ch 1: 414, Ch 2: 609, Ch 3: 0, Ch 4: 0, Ch 5: 0
 1     2     3     4     5     6     7     8 
Last path: BA8DX-4>AP51DW via BH8FNJ-1,WIDE1*,WIDE2-1,qAR,BH8FNJ-10 (good)
Positions stored: 2
Packet rate: 120 seconds between packets on average during 5882 seconds.
Other SSIDs: BA8DX-2 BA8DX-5 BA8DX-7 BA8DX-9
APRS digipeater – Statistics for 2019-11:
Stations heard directly: 4 on radio path – show map
Last heard a station directly: 2019-11-13 03:25:01 EST (1h32m ago)
Normal receiver range estimate: 186 miles (Updated: 2019-10-31 18:31:06 EDT)
Position packets heard directly: 1817 on radio path
Stations near current position of BA8DX-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
BI8BRD-114.2 miles 321°2019-10-18 04:55:22
Stations which heard BA8DX-4 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
BA8DX-2 438 2019-10-31 23:00:41 2019-11-13 04:03:48 OM30JH > OL19PM 215.1 miles 256° 2019-11-13 04:03:48
BH8FNJ-1 5625 2019-10-31 20:00:27 2019-11-13 04:55:47 OM30JH > OM22XL 159.5 miles 342° 2019-11-13 04:55:47
BG8FKL-10 341 2019-11-04 04:14:02 2019-11-12 13:59:20 OM30JH > OM20DV 156.7 miles 286° 2019-11-12 13:59:20
BY8DX-3 3797 2019-10-31 20:30:30 2019-11-13 04:39:48 OM30JH > OM10OP 216.5 miles 277° 2019-11-13 04:39:48
BY8DX-1 336 2019-11-01 03:25:03 2019-11-11 14:00:18 OM30JH > OM21BP 186.3 miles 301° 2019-11-11 14:00:18

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.
Stations heard directly by BA8DX-4
callsign pkts first heard - EST last heard longest (rx => tx) longest at - EST
BA8DX-2 1779 2019-10-31 20:02:03 2019-11-13 03:25:01 OL19PM > OM30JH 215.1 miles 256° 2019-11-13 03:25:01
BH8ESR-9 2 2019-11-10 23:31:08 2019-11-10 23:40:04 OM22XL > OM30JH 159.5 miles 342° 2019-11-10 23:40:04
BY8DX-3 12 2019-11-01 00:47:24 2019-11-07 03:12:49 OM10OP > OM30JH 216.5 miles 277° 2019-11-07 03:12:49
BY8DX-1 24 2019-11-01 00:32:18 2019-11-07 03:41:48 OM21BP > OM30JH 186.3 miles 301° 2019-11-07 03:41:48

Only stations from which a position packet has been heard 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