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APRS station BY4SZ-10 - show graphs
Comment: SuZhou BY4SZ APRS iGate 144.640Mhz 13.5V
Location: 31°14.44' N 120°34.45' E - locator PM01GF87VS - show map
1.8 miles North bearing 341° from Yuexi, Jiangsu Sheng, China [?]
3.4 miles East bearing 108° from Mudu, Jiangsu Sheng, China
52.2 miles West bearing 272° from Shanghai, Shanghai Shi, China
69.8 miles North bearing 20° from Hangzhou, Zhejiang Sheng, China
Last position: 2025-02-06 10:01:09 EST (34s ago)
2025-02-06 23:01:09 CST local time at Yuexi, China [?]
Device: Telemetry devices
Last path: BY4SZ-10>APET51 via WIDE1-1,WIDE2-1,qAS,BH4FEN-10 (good)
Positions stored: 11
Packet rate: 278 seconds between packets on average during 13628 seconds.
APRS digipeater – Statistics for 2025-02:
Stations heard directly: 23 on radio path – show map
Last heard a station directly: 2025-02-06 09:49:44 EST (11m59s ago)
Normal receiver range estimate: 118 miles (Updated: 2025-01-31 17:14:13 EST)
Position packets heard directly: 2623 on radio path
Stations near current position of BY4SZ-10 - show more
callsign distance last heard - EST      callsign distance last heard - EST
BI4RSI-81.6 miles 106°2025-02-01 21:59:19 BI9CAZ-101.8 miles 285°2025-02-02 17:03:08
BD4VQH-91.9 miles 328°2025-01-26 18:18:45 BD4WMA-72.4 miles 168°2025-01-09 04:22:19
BA4QFT-52.8 miles 33°2025-02-02 07:10:51 BD4ULL-93.3 miles 340°2025-01-26 21:32:17
BD4WMA-103.4 miles 66°2025-02-06 09:52:23 BD4WMA-13.5 miles 67°2025-01-18 09:00:42
BD4UJU-93.5 miles 28°2025-02-06 09:43:18 BH4SRC-N3.6 miles 31°2025-02-05 19:10:02
BH4SRC B3.6 miles 31°2025-02-06 09:57:18 BH4SRC-B3.6 miles 31°2025-02-06 09:57:21
BD4WMC-93.8 miles 303°2025-02-04 09:39:26 BH4SFY-104.0 miles 320°2025-01-30 22:48:48
BI4TSH-94.0 miles 278°2025-02-06 09:49:44 BI4TSH-74.0 miles 278°2025-01-28 08:15:37
BD4KEY-R4.2 miles 5°2025-02-03 20:26:32 BA4QHB-154.3 miles 114°2025-01-31 04:12:33
BD4TZY-15.6 miles 97°2025-02-06 06:02:49 bi4rsi-45.6 miles 177°2025-02-06 10:00:59
Stations which heard BY4SZ-10 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
BH4URE-10 18 2025-01-31 19:04:10 2025-02-05 19:57:42 PM01GF > PM02GJ 79.6 miles 359° 2025-02-05 19:57:42
BI4VTX-3 17 2025-02-05 05:35:34 2025-02-05 20:06:57 PM01GF > PM02NB 64.8 miles 28° 2025-02-05 20:06:57
BH4TPJ-10 82 2025-02-01 00:28:29 2025-02-04 10:16:48 PM01GF > PM01EV 46.7 miles 343° 2025-02-04 10:16:48
BG4GTL-10 45 2025-02-01 10:17:00 2025-02-06 00:12:32 PM01GF > PM01RI 54.9 miles 80° 2025-02-06 00:12:32
BH4CRV 3 2025-02-04 17:50:57 2025-02-05 05:12:23 PM01GF > PM01OG 37.6 miles 86° 2025-02-05 05:12:23
BH5HQJ-8 1 2025-02-05 05:23:30 2025-02-05 05:23:30 PM01GF > PM00AH 70.4 miles 206° 2025-02-05 05:23:30
bi4rsi-4 1 2025-02-06 06:32:37 2025-02-06 06:32:37 PM01GF > PM01GD 5.6 miles 177° 2025-02-06 06:32:37
BD4RGM-3 222 2025-01-31 19:04:04 2025-02-06 02:26:58 PM01GF > PM02KA 56.2 miles 16° 2025-02-06 02:26:58
BH4FEN-10 1533 2025-01-31 19:04:03 2025-02-06 10:01:09 PM01GF > PM01QD 49.6 miles 98° 2025-02-06 10:01:09
BI4SSB-10 3 2025-01-31 22:41:52 2025-02-05 17:29:17 PM01GF > PM01DV 48.7 miles 342° 2025-02-05 17:29:17
BD4WNX-3 4 2025-02-01 02:28:58 2025-02-02 22:21:30 PM01GF > PM02KB 58.9 miles 16° 2025-02-02 22:21:30
BH5HSG-10 6 2025-02-01 21:42:58 2025-02-05 20:25:28 PM01GF > PM00DK 56.9 miles 196° 2025-02-04 19:28:15
BH4GZK-10 12 2025-02-01 04:43:22 2025-02-05 15:38:02 PM01GF > PM01QD 48.5 miles 99° 2025-02-05 15:38:02
BH4HGH-10 5 2025-01-31 22:09:26 2025-02-05 09:08:43 PM01GF > PM00RW 58.4 miles 111° 2025-02-05 09:08:43
BD4WMA-10 32 2025-01-31 21:27:43 2025-02-06 03:13:16 PM01GF > PM01HG 3.4 miles 66° 2025-02-06 03:13:16
BG5DAH-3 4 2025-02-03 00:22:01 2025-02-06 00:31:05 PM01GF > PL09KN 118.1 miles 171° 2025-02-06 00:31:05
BH4GMY-10 19 2025-01-31 19:17:57 2025-02-06 02:59:22 PM01GF > PM01NR 45.0 miles 42° 2025-02-06 02:59:22
BH4FCY-10 3 2025-02-01 06:32:07 2025-02-03 07:38:16 PM01GF > PM01NH 33.5 miles 82° 2025-02-03 07:38:16
BH4CRV-15 6 2025-02-05 05:36:18 2025-02-06 01:26:41 PM01GF > PM01RF 54.4 miles 90° 2025-02-06 01:26:41

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 BY4SZ-10
callsign pkts first heard - EST last heard longest (rx => tx) longest at - EST
BI4VTX-3 1 2025-02-05 17:22:17 2025-02-05 17:22:17 PM02NB > PM01GF 64.8 miles 28° 2025-02-05 17:22:17
BH4WCW-8 3 2025-02-01 15:54:26 2025-02-06 00:30:34 OM92UB > PM01GF 78.4 miles 318° 2025-02-06 00:30:34
BI4TSH-9 1293 2025-01-31 19:00:30 2025-02-06 09:49:44 PM01GF > PM01GF 4.0 miles 278° 2025-02-06 09:49:44
BH5EJL-9 10 2025-01-31 19:12:53 2025-02-05 18:42:54 PM00LT > PM01GF 36.9 miles 146° 2025-02-03 03:03:07
BH4FDE-9 3 2025-02-02 05:54:05 2025-02-02 06:17:46 PM00KV > PM01GF 29.2 miles 145° 2025-02-02 06:16:36
BI4RSI-8 3 2025-02-01 21:09:36 2025-02-01 21:42:56 PM01HF > PM01GF 1.6 miles 106° 2025-02-01 21:42:56
BD4SDX-10 207 2025-01-31 19:05:05 2025-02-06 03:43:14 PM00HV > PM01GF 23.7 miles 168° 2025-02-06 03:43:14
BG5HNP-10 13 2025-02-04 17:02:33 2025-02-05 16:57:46 PM00BE > PM01GF 76.8 miles 199° 2025-02-05 16:57:46
BH4FLP-9 14 2025-02-02 04:54:05 2025-02-05 20:46:06 PM01GS > PM01GF 35.5 miles 360° 2025-02-02 04:54:05
BH4FEN-10 59 2025-01-31 19:01:07 2025-02-06 02:18:09 PM01QD > PM01GF 49.6 miles 98° 2025-02-06 02:18:09
BD4TSK-10 5 2025-02-01 21:48:11 2025-02-05 21:53:56 PM01FT > PM01GF 41.0 miles 349° 2025-02-05 21:53:56
BH4FBI-10 2 2025-02-03 07:50:31 2025-02-03 08:40:26 PM01PM > PM01GF 44.1 miles 66° 2025-02-03 08:40:26
BG4BPN-8 1 2025-02-05 19:56:04 2025-02-05 19:56:04 PM01RQ > PM01GF 61.2 miles 60° 2025-02-05 19:56:04
BH4GNI-9 1 2025-02-05 19:27:55 2025-02-05 19:27:55 PM01RD > PM01GF 52.9 miles 98° 2025-02-05 19:27:55
BD4TZY-1 49 2025-02-03 00:20:47 2025-02-06 06:02:49 PM01KI > PM01GF 19.3 miles 66° 2025-02-03 00:20:47
BG5AEU-9 13 2025-02-05 21:00:41 2025-02-06 01:25:00 PM00CQ > PM01GF 44.0 miles 209° 2025-02-05 21:00:41
BD4WMC-9 769 2025-02-01 09:58:32 2025-02-04 09:39:26 PM01GG > PM01GF 3.8 miles 303° 2025-02-04 09:39:26
BA4QVC 83 2025-01-31 20:12:42 2025-02-06 04:12:01 PM01FU > PM01GF 43.8 miles 353° 2025-02-05 22:50:30
BH4HGH-9 2 2025-02-05 19:15:40 2025-02-05 19:19:51 PM01RE > PM01GF 50.9 miles 93° 2025-02-05 19:19:51
BG4KAT-2 6 2025-01-31 21:51:27 2025-01-31 21:57:51 PM01NB > PM01GF 35.3 miles 111° 2025-01-31 21:57:51
BG5DAH-3 35 2025-01-31 19:41:54 2025-02-06 00:22:40 PL09KN > PM01GF 118.1 miles 171° 2025-02-06 00:22:40
BI4ABF-9 48 2025-01-31 21:28:50 2025-02-01 02:16:57 PM01OF > PM01GF 39.5 miles 92° 2025-02-01 02:16:57
BH4DBZ-9 3 2025-02-05 17:38:24 2025-02-05 17:43:27 PM01OG > PM01GF 37.3 miles 87° 2025-02-05 17:38:24

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.
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