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APRS station BY1CRA-10 - show graphs
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Comment: www.crac.org.cn
Location: 39°55.48' N 116°20.88' E - locator OM89EW11SW - show map - static map
2.9 miles Northwest bearing 294° from Beijing, Beijing, China [?]
13.4 miles West bearing 276° from Tongzhou, Beijing, China
69.8 miles Northwest bearing 321° from Tianjin, Tianjin Shi, China
Last position: 2017-07-21 00:41:16 EDT (4m54s ago)
2017-07-21 12:41:16 CST local time at Beijing, China [?]
Device: Telemetry devices
Last path: BY1CRA-10>APET51 via TCPIP*,qAC,T2TOKYO3
Positions stored: 3
Packet rate: 587 seconds between packets on average during 29359 seconds.
APRS igate – Statistics for 2017-07:
Stations heard directly: 38 on radio path – show map
Last heard a station directly: 2017-07-20 22:07:07 EDT (2h39m ago)
Normal receiver range estimate: 25 miles (Updated: 2017-05-31 19:51:08 EDT)
Position packets heard directly: 1290 on radio path
Position packets sent to APRS-IS: 1784 – show map
Stations near current position of BY1CRA-10 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
BD1MMR-9170.5 yards 90°2017-07-14 23:49:27 BH1RXA-90.8 miles 182°2017-07-19 07:27:24
BH1FDN-ios1.4 miles 163°2017-07-14 23:04:05 BH1FDN-91.5 miles 176°2017-07-14 11:13:03
BH1FDN-111.5 miles 163°2017-07-01 04:11:45 BH1FDN-101.5 miles 164°2017-07-21 00:42:16
BH1FDN-41.5 miles 163°2017-07-21 00:43:02 BH1FDN-71.6 miles 176°2017-07-01 06:12:29
BY1CW-61.8 miles 341°2017-07-15 12:02:34 BY1BJ-101.8 miles 341°2017-07-03 10:23:33
BH1IGB-102.1 miles 203°2017-06-25 18:06:38 BG7HHB2.5 miles 294°2017-07-07 23:09:51
BY1CW-12.6 miles 116°2017-07-21 00:38:09 BH1RDX2.6 miles 270°2017-07-12 21:18:26
BH1OSW-12.9 miles 127°2017-07-21 00:45:39 SONIC-153.1 miles 101°2017-07-08 19:01:23
BH1NWL-103.3 miles 3°2017-07-21 00:41:16 BH4JGD-113.4 miles 102°2017-07-19 10:53:03
BH1QVZ-113.7 miles 18°2017-07-20 23:58:37 BH3QBY-33.8 miles 109°2017-07-17 03:09:09
Stations which heard BY1CRA-10 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
BY1WJ 19 2017-07-08 12:10:35 2017-07-20 21:31:18 OM89EW > ON80FA 8.0 miles 47° 2017-07-20 21:31:18
BH1NWL-10 2 2017-06-30 20:20:28 2017-06-30 21:50:01 OM89EW > OM89EX 3.3 miles 3° 2017-06-30 21:50:01
BA1GG-10 1 2017-07-18 01:51:56 2017-07-18 01:51:56 OM89EW > OM89EX 4.0 miles 37° 2017-07-18 01:51:56
BA1GG-1 3 2017-07-01 04:50:29 2017-07-10 20:01:09 OM89EW > OM89EX 5.6 miles 32° 2017-07-10 20:01:09
BA1GM-10 12 2017-07-09 07:10:04 2017-07-20 21:21:20 OM89EW > OM89FV 8.5 miles 111° 2017-07-20 21:21:20
BH1SUV-10 2 2017-07-18 04:41:43 2017-07-18 09:01:36 OM89EW > ON80HE 23.9 miles 42° 2017-07-18 09:01:36
BY1CW-6 1 2017-07-13 02:21:02 2017-07-13 02:21:02 OM89EW > OM89EW 1.8 miles 341° 2017-07-13 02:21:02
BY1CW-1 6 2017-07-05 02:51:29 2017-07-12 06:31:00 OM89EW > OM89EV 2.6 miles 116° 2017-07-12 06:31:00
BY1BJ-10 1 2017-07-03 07:39:27 2017-07-03 07:39:27 OM89EW > OM89EW 2.2 miles 354° 2017-07-03 07:39:27

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 BY1CRA-10
callsign pkts first heard - EDT last heard longest (rx => tx) longest at - EDT
BH1GJT-9 112 2017-07-02 19:45:07 2017-07-20 04:24:14 ON80AI > OM89EW 34.2 miles 329° 2017-07-20 04:24:14
BD1LV-9 283 2017-07-01 02:38:50 2017-07-16 20:50:08 ON80EA > OM89EW 8.0 miles 19° 2017-07-05 02:11:24
BH1GC-9 22 2017-07-04 23:26:10 2017-07-20 19:53:08 OM89FX > OM89EW 9.2 miles 58° 2017-07-06 05:23:26
BH1RXA-9 50 2017-07-13 20:09:52 2017-07-19 07:27:24 OM89FV > OM89EW 4.9 miles 100° 2017-07-13 20:40:32
BA1GM-9 2 2017-07-15 10:59:20 2017-07-16 05:51:14 ON80BG > OM89EW 25.8 miles 332° 2017-07-15 10:59:20
BA1GG-9 33 2017-07-14 22:15:00 2017-07-20 21:44:08 OM89FX > OM89EW 8.5 miles 53° 2017-07-16 22:18:17
BD1MMR-9 3 2017-07-14 23:47:47 2017-07-14 23:49:27 OM89EW > OM89EW 313.0 yards 33° 2017-07-14 23:47:47
BH1VCS-9 62 2017-06-30 20:43:29 2017-07-19 04:20:54 OM89BW > OM89EW 12.4 miles 275° 2017-07-05 20:09:51
BG6ICN-9 5 2017-07-15 21:40:37 2017-07-18 21:03:30 ON80DA > OM89EW 7.1 miles 330° 2017-07-18 20:35:19
BH1UVS-9 4 2017-07-06 23:36:23 2017-07-06 23:58:02 OM89FW > OM89EW 5.9 miles 85° 2017-07-06 23:58:02
BA1GG-8 2 2017-07-07 18:53:35 2017-07-07 18:57:39 OM89DU > OM89EW 6.1 miles 230° 2017-07-07 18:57:39
BH1VCS-8 1 2017-07-09 20:44:03 2017-07-09 20:44:03 OM89AV > OM89EW 14.5 miles 258° 2017-07-09 20:44:03
BH1UPO-9 1 2017-07-04 04:37:14 2017-07-04 04:37:14 OM89DS > OM89EW 11.0 miles 201° 2017-07-04 04:37:14
BH1TLD-9 115 2017-07-01 02:36:41 2017-07-19 08:54:11 OM89GU > OM89EW 9.6 miles 114° 2017-07-15 03:13:11
BH1OSW-9 5 2017-07-05 01:48:57 2017-07-15 21:35:11 OM89CX > OM89EW 10.1 miles 300° 2017-07-15 21:35:11
BA1GG-1 60 2017-07-02 06:52:37 2017-07-20 15:51:09 OM89EX > OM89EW 5.6 miles 32° 2017-07-20 15:51:09
BA1AK-15 17 2017-07-08 11:32:46 2017-07-12 20:17:45 OM89FX > OM89EW 8.5 miles 54° 2017-07-08 23:07:56
BG1EAO-9 24 2017-07-04 02:19:17 2017-07-11 00:39:45 OM89FV > OM89EW 5.6 miles 114° 2017-07-07 01:23:14
BG6IMI-9 44 2017-07-02 22:11:21 2017-07-20 15:07:43 OM89HX > OM89EW 14.6 miles 80° 2017-07-02 22:11:21
BD1KV-9 25 2017-07-05 00:22:01 2017-07-15 11:38:39 OM89GV > OM89EW 10.4 miles 100° 2017-07-07 19:44:19
BI3OGV-1 3 2017-07-02 18:12:03 2017-07-07 17:16:43 OM99IR > OM89EW 125.0 miles 95° 2017-07-07 17:16:43
BH1QVZ-11 6 2017-07-20 20:37:11 2017-07-20 22:07:07 OM89EX > OM89EW 4.1 miles 38° 2017-07-20 22:07:07
BH1GJT-10 16 2017-07-14 17:15:26 2017-07-20 18:27:44 OM89HV > OM89EW 14.9 miles 95° 2017-07-20 18:27:44
BH1HUK-7 2 2017-07-04 19:50:50 2017-07-04 22:55:08 OM89EW > OM89EW 1.5 miles 72° 2017-07-04 22:55:08
BH1GJT-7 1 2017-07-19 17:53:36 2017-07-19 17:53:36 OM89EW > OM89EW 0.7 miles 5° 2017-07-19 17:53:36
BH1ORH-9 57 2017-07-03 18:12:28 2017-07-03 23:28:43 OM89HV > OM89EW 14.9 miles 98° 2017-07-03 23:28:43
BY1CW-5 229 2017-07-01 05:05:48 2017-07-20 21:39:14 ON80BB > OM89EW 16.6 miles 304° 2017-07-20 21:39:14
SONIC-15 1 2017-07-08 19:01:23 2017-07-08 19:01:23 OM89EV > OM89EW 3.1 miles 101° 2017-07-08 19:01:23
BG1QJE-9 5 2017-07-04 01:20:09 2017-07-04 01:33:48 OM89FV > OM89EW 5.0 miles 116° 2017-07-04 01:20:09
BY1AS-3 2 2017-07-17 12:01:24 2017-07-17 17:52:40 OM89AU > OM89EW 15.6 miles 255° 2017-07-17 17:52:40
BH1JSS 1 2017-07-19 03:54:34 2017-07-19 03:54:34 OM89DX > OM89EW 4.4 miles 330° 2017-07-19 03:54:34
BH1VFG-9 1 2017-07-07 21:47:01 2017-07-07 21:47:01 OM89EW > OM89EW 1.2 miles 3° 2017-07-07 21:47:01
BH1QPY-9 72 2017-07-01 23:25:59 2017-07-20 02:28:01 OM89FV > OM89EW 7.5 miles 107° 2017-07-05 04:40:59
BH1TZO-9 5 2017-07-04 04:58:45 2017-07-04 05:25:42 OM89CU > OM89EW 8.1 miles 231° 2017-07-04 05:25:42
BH1NGP-9 13 2017-07-01 22:03:42 2017-07-07 22:24:19 OM89EW > OM89EW 2.6 miles 31° 2017-07-07 22:21:44
BH3QBY-3 1 2017-07-16 11:15:20 2017-07-16 11:15:20 OM89GV > OM89EW 10.2 miles 97° 2017-07-16 11:15:20
BH9BWQ-9 3 2017-07-20 04:17:42 2017-07-20 04:40:08 OM89GV > OM89EW 10.3 miles 99° 2017-07-20 04:17:42
BG1CIW-8 2 2017-07-15 05:08:18 2017-07-15 05:18:59 OM89FV > OM89EW 7.8 miles 112° 2017-07-15 05:08:18

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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