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 BY4SZ-2 - show graphs
Map loading...
Comment: PHG5590SuZhou Amateur DMR TrunKing 438.090 -5 Code1,Slot1,Rx Group1,All Call,User ID Any, By4Sz.Com
Location: 31°16.28' N 120°37.41' E - locator PM01HG45TC - show map - static map
2.8 miles Southeast bearing 144° from Suzhou, Jiangsu Sheng, China [?]
3.9 miles Southeast bearing 119° from Shishan, Jiangsu Sheng, China
49.4 miles West bearing 274° from Shanghai, Shanghai Shi, China
72.9 miles North bearing 22° from Hangzhou, Zhejiang Sheng, China
Last position: 2019-06-16 22:49:25 EDT (4m35s ago)
2019-06-17 10:49:25 CST local time at Suzhou, China [?]
Device: Telemetry devices
Last path: BY4SZ-2>APET51 via WIDE1-1,WIDE2-1,qAS,BI4QZW (good)
Positions stored: 21
Packet rate: 291 seconds between packets on average during 14269 seconds.
Other SSIDs: BY4SZ-10 BY4SZ-3 BY4SZ-9
Stations near current position of BY4SZ-2 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
BY4SZ-340.1 yards 180°2019-06-16 22:49:25 Z-340.1 yards 180°2019-06-13 08:41:51
BI4QZW1.3 miles 342°2019-06-16 22:49:25 BH4SRC-71.4 miles 322°2019-06-01 02:56:58
BI4QZW-21.8 miles 269°2019-06-16 22:49:25 CETRU1.9 miles 297°2019-06-15 07:59:17
BG4QWS-71.9 miles 292°2019-05-22 04:46:38 BY4SZ-102.4 miles 357°2019-06-16 22:53:27
SZ-102.4 miles 357°2019-06-12 14:15:17 BI4XDT-92.4 miles 357°2019-05-23 21:39:36
BI4SDT2.6 miles 296°2019-06-16 22:49:25 I4SDT2.6 miles 296°2019-06-12 12:14:53
BD4SX-103.1 miles 315°2019-06-16 22:49:25 BI4RSI-43.1 miles 236°2019-06-11 03:50:38
BI4RSI-103.1 miles 236°2019-06-11 03:58:29 BH6ABO-74.4 miles 347°2019-06-12 19:47:23
BI4SRA-94.5 miles 30°2019-05-30 21:03:10 BI4RSI-94.9 miles 236°2019-06-11 22:57:41
BI4SQM-136.1 miles 72°2019-06-12 19:28:28 BI4RGI-76.1 miles 48°2019-06-01 23:37:02
Stations which heard BY4SZ-2 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
BI4QZW 4675 2019-05-31 20:00:25 2019-06-16 22:49:25 PM01HG > PM01HG 1.3 miles 342° 2019-06-16 22:49:25

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