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 BD4CG-9 - show graphs
Map loading...
Comment: Ham Tracker from KramStuff
Location: 19°43.16' N 110°12.27' E - locator OK59CR42MP - show map - static map
2.1 miles South bearing 163° from Yongfa, Hainan, China [?]
2.9 miles Southwest bearing 219° from Dongshan, Hainan, China
20.3 miles South bearing 197° from Xiuying, Hainan, China
24.2 miles South bearing 202° from Haikou, Hainan, China
Last position: 2017-02-18 23:15:39 EST (8h1m ago)
2017-02-19 12:15:39 CST local time at Yongfa, China [?]
Device: kramstuff.com: Ham Tracker (app, ios)
Last path: BD4CG-9>APKRAM via TCPIP*,qAC,AE5PL-JF
Positions stored: 34753
Other SSIDs: BD4CG BD4CG-13 BD4CG-2 BD4CG-3 BD4CG-7 BD4CG-8
Last heard a station directly: 2016-09-25 08:50:49 EDT (146d 23h26m ago)
Stations near current position of BD4CG-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
BG7YU-70.0 yards 0°2017-02-19 03:09:40 BG7YU-140.0 yards 0°2017-02-19 06:48:32
BD4CG-2445.7 yards 50°2017-02-19 07:13:24 BD4CG-130.5 miles 61°2017-02-19 07:02:20
EL-BD4CG1.7 miles 314°2017-02-19 07:09:53 BG7YBW-32.2 miles 338°2017-02-19 07:13:34
BD4CG-ios2.3 miles 65°2017-02-12 06:54:05 BG7YU-919.6 miles 17°2017-02-01 09:05:02
BG7YU-319.7 miles 16°2017-02-08 01:56:05 BG7YN820.2 miles 27°2017-02-18 09:21:10
BD7YA-720.2 miles 14°2017-02-05 23:43:23 BG7YR-920.5 miles 17°2017-02-10 22:06:28
BG7YII-520.7 miles 19°2017-02-19 06:57:02 BG7YN-820.8 miles 31°2017-02-18 23:01:38
BG7YQ-921.5 miles 17°2017-02-18 12:46:35 BG7YII-721.9 miles 19°2017-02-18 07:58:21
ZJHK22.5 miles 49°2017-02-19 07:03:37 BG7YBW-924.1 miles 39°2017-02-10 20:23:41
Stations which heard BD4CG-9 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
BD4CG-2 1 2017-02-11 09:36:53 2017-02-11 09:36:53 OK59CR > OK59CR 458.3 yards 48° 2017-02-11 09:36:53

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.
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