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Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station RS0ISS - show graphs
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Last status: ARISS - International Space Station
Last beacon: CMD(B/H/J/K/KM/L/M/R/S/SB/SP/ST/SR/V/?)>
Location: 41°53.73' N 12°28.34' E - locator JN61FV64QW - show map - static map
0.6 miles West bearing 275° from Roma, Provincia di Roma, Latium, Italy [?]
1.1 miles Southeast bearing 116° from Vatican City, Vatican
37.1 miles Northwest bearing 323° from Latina, Provincia di Latina, Latium, Italy
Last position: 2019-10-28 04:06:41 EDT (85d 18h14m ago)
2019-10-28 09:06:41 CET local time at Roma, Italy [?]
Device: Open Source: APRSdroid (app, Android)
Last path: RS0ISS>APDR15 via TCPIP*,qAC,T2DENMARK
Positions stored: 28
Packet rate: 681 seconds between packets on average during 6128 seconds.
APRS digipeater – Statistics for 2020-01:
Stations heard directly: 122 on radio path – show map
Last heard a station directly: 2020-01-21 20:59:01 EST (22m8s ago)
Normal receiver range estimate: 5903 miles (Updated: 2018-12-19 14:36:31 EST)
Position packets heard directly: 1062 on radio path
Stations near current position of RS0ISS - show more
callsign distance last heard - EST      callsign distance last heard - EST
IW2KWS0.4 miles 168°2020-01-04 03:09:02 IV3HXO-70.5 miles 287°2020-01-21 16:23:41
IV3HXO-50.6 miles 263°2020-01-06 10:54:22 I0TVL0.9 miles 144°2020-01-21 21:08:42
IW0HKN-101.0 miles 70°2020-01-19 21:32:39 IZ0ROX-H11.1 miles 109°2020-01-08 02:00:11
IK0VPR-11.2 miles 24°2020-01-02 12:23:29 IZ0VRV-DP1.2 miles 316°2019-12-23 01:24:15
IZ0XBM1.4 miles 3°2020-01-18 06:00:02 IZ0MXY-H51.5 miles 78°2020-01-04 17:00:24
LA9PMA-71.6 miles 94°2019-12-26 16:22:31 IZ0ANF-H01.8 miles 187°2020-01-21 19:01:10
IU0NEJ2.1 miles 226°2020-01-08 13:48:24 IZ0YCB-72.1 miles 339°2020-01-17 05:47:26
IU0NEJ-12.1 miles 226°2020-01-08 13:48:30 IW8REA-102.2 miles 234°2020-01-21 17:10:38
IZ0FKE2.2 miles 11°2020-01-21 21:12:08 IW0FXN B2.3 miles 308°2020-01-21 21:17:12
IW0FXN-B2.3 miles 308°2020-01-21 21:17:22 IW0FXN-H02.3 miles 308°2020-01-21 21:01:26
Stations heard directly by RS0ISS
callsign pkts first heard - EST last heard longest (rx => tx) longest at - EST
LU8YY 1 2020-01-13 15:57:48 2020-01-13 15:57:48 FF77JP > JN61FV 7104.3 miles 238° 2020-01-13 15:57:48
OE5RPP 1 2020-01-19 14:50:56 2020-01-19 14:50:56 JN67RW > JN61FV 420.2 miles 6° 2020-01-19 14:50:56
SV2CPH 1 2020-01-19 11:41:49 2020-01-19 11:41:49 KN00VH > JN61FV 496.9 miles 100° 2020-01-19 11:41:49
PD0RLX 11 2020-01-01 01:12:18 2020-01-21 14:52:20 JO11SL > JN61FV 783.6 miles 331° 2020-01-21 14:52:20
SV2CPH-4 1 2020-01-21 11:39:53 2020-01-21 11:39:53 KN00VH > JN61FV 496.9 miles 100° 2020-01-21 11:39:53
CE3QC-1 11 2020-01-02 21:28:40 2020-01-18 15:09:26 FF46QI > JN61FV 7400.3 miles 240° 2020-01-18 15:09:26
JA0CAW 1 2020-01-10 15:59:50 2020-01-10 15:59:50 PM97NW > JN61FV 5976.3 miles 39° 2020-01-10 15:59:50
9H1FF 2 2020-01-03 02:53:37 2020-01-05 02:52:31 JM75FV > JN61FV 426.3 miles 165° 2020-01-05 02:52:31
CX1TH 1 2020-01-06 10:13:35 2020-01-06 10:13:35 GF25VI > JN61FV 6758.4 miles 230° 2020-01-06 10:13:35
YO8RBY 2 2020-01-19 14:54:34 2020-01-21 16:31:23 KN36EX > JN61FV 768.5 miles 58° 2020-01-21 16:31:23
W8JES-9 11 2020-01-02 08:12:02 2020-01-21 19:24:41 EN81EB > JN61FV 4677.9 miles 306° 2020-01-07 07:27:16
VK6CO-2 42 2020-01-01 01:46:00 2020-01-19 01:56:16 OF78XC > JN61FV 8285.9 miles 108° 2020-01-19 01:56:16
DL7VTX-2 1 2020-01-11 18:02:25 2020-01-11 18:02:25 JO62TM > JN61FV 736.9 miles 4° 2020-01-11 18:02:25
PE1NTN 57 2020-01-03 22:47:44 2020-01-21 16:28:13 JO22JL > JN61FV 814.3 miles 337° 2020-01-21 16:28:13
IZ7XIQ 3 2020-01-05 19:34:11 2020-01-14 15:37:32 JN81FG > JN61FV 209.2 miles 101° 2020-01-14 15:37:32
KJ4ZMQ-9 1 2020-01-03 10:34:01 2020-01-03 10:34:01 DM79NN > JN61FV 5571.0 miles 316° 2020-01-03 10:34:01
HS6KLJ-2 5 2020-01-04 10:54:31 2020-01-19 16:51:53 OK03CN > JN61FV 5478.4 miles 81° 2020-01-19 16:51:53
HS6KLJ-8 14 2020-01-01 23:09:26 2020-01-19 05:21:02 OK03IN > JN61FV 5500.8 miles 81° 2020-01-17 06:55:45
ON7BRT 2 2020-01-13 18:02:06 2020-01-14 17:14:04 JO11UB > JN61FV 755.3 miles 330° 2020-01-14 17:14:04
K3DQB 9 2020-01-03 07:26:48 2020-01-19 19:26:08 FM19OT > JN61FV 4434.8 miles 301° 2020-01-19 19:26:08
IS0EBO-4 14 2020-01-02 00:22:51 2020-01-19 21:15:49 JN40GR > JN61FV 218.9 miles 250° 2020-01-19 21:15:49
HS6KLJ-4 4 2020-01-07 10:05:48 2020-01-18 06:05:49 NK97WG > JN61FV 5296.5 miles 79° 2020-01-18 06:05:49
KH2PM 1 2020-01-05 00:58:34 2020-01-05 00:58:34 FM05NN > JN61FV 4697.5 miles 299° 2020-01-05 00:58:34
K0KOC-7 53 2020-01-01 02:31:01 2020-01-21 19:27:47 FM19HJ > JN61FV 4478.2 miles 301° 2020-01-21 19:27:47
N3FCX-4 35 2020-01-01 05:46:42 2020-01-13 04:16:45 FM29IV > JN61FV 4365.3 miles 301° 2020-01-13 04:16:45
N0AGI 1 2020-01-06 03:21:08 2020-01-06 03:21:08 EN34GP > JN61FV 4908.8 miles 314° 2020-01-06 03:21:08
SV3CIX 15 2020-01-01 01:17:29 2020-01-19 13:15:26 KM17KM > JN61FV 628.2 miles 115° 2020-01-19 13:15:26
IZ0ZSZ-9 1 2020-01-03 02:52:52 2020-01-03 02:52:52 JN61DS > JN61FV 14.2 miles 230° 2020-01-03 02:52:52
KE4SYV 2 2020-01-10 21:44:30 2020-01-13 20:56:33 EM65RS > JN61FV 5028.0 miles 303° 2020-01-13 20:56:33
K1WY 11 2020-01-05 02:34:02 2020-01-19 02:41:58 FN31PS > JN61FV 4182.7 miles 301° 2020-01-19 02:41:58
AI9IN 1 2020-01-07 07:27:33 2020-01-07 07:27:33 EM79JI > JN61FV 4814.3 miles 305° 2020-01-07 07:27:33
OE6PWE 189 2019-12-31 21:56:49 2020-01-21 19:43:03 JN76RX > JN61FV 380.9 miles 22° 2020-01-21 19:43:03
W0JW-6 1 2020-01-21 20:59:01 2020-01-21 20:59:01 EN31BE > JN61FV 5082.9 miles 311° 2020-01-21 20:59:01
IW2DMO 1 2020-01-02 00:26:09 2020-01-02 00:26:09 JN45UJ > JN61FV 279.3 miles 331° 2020-01-02 00:26:09
N1NCB-1 1 2020-01-21 17:51:00 2020-01-21 17:51:00 FN53BW > JN61FV 3984.3 miles 302° 2020-01-21 17:51:00
NY2M-6 5 2020-01-03 09:03:55 2020-01-19 02:45:34 FN20VO > JN61FV 4288.7 miles 301° 2020-01-19 02:45:34
9Z4DZ 5 2020-01-02 23:18:37 2020-01-08 20:07:16 FK90FD > JN61FV 4928.1 miles 267° 2020-01-08 20:07:16
KA8YES-6 44 2020-01-01 02:33:46 2020-01-19 02:43:34 EN90RI > JN61FV 4574.5 miles 304° 2020-01-19 02:43:34
IZ0ZSZ 1 2020-01-17 14:50:15 2020-01-17 14:50:15 JN61CS > JN61FV 15.4 miles 231° 2020-01-17 14:50:15
W5SAT-6 1 2020-01-04 11:24:09 2020-01-04 11:24:09 DM26KB > JN61FV 6112.8 miles 320° 2020-01-04 11:24:09
K4KDR-6 25 2020-01-01 02:30:27 2020-01-21 19:24:18 FM17ET > JN61FV 4550.0 miles 300° 2020-01-21 19:24:18
KB2M-4 8 2020-01-05 09:03:00 2020-01-19 04:19:47 EL99JO > JN61FV 5057.6 miles 295° 2020-01-19 04:19:47
N2QKV 4 2020-01-09 22:35:46 2020-01-17 19:27:00 FN20WB > JN61FV 4305.8 miles 300° 2020-01-17 19:27:00
KK6CUS-11 1 2020-01-21 20:55:15 2020-01-21 20:55:15 DM13DN > JN61FV 6337.1 miles 320° 2020-01-21 20:55:15
IZ4IPU 1 2020-01-18 14:03:26 2020-01-18 14:03:26 JN44UU > JN61FV 246.9 miles 327° 2020-01-18 14:03:26
N1RCN 18 2020-01-05 09:05:58 2020-01-21 17:49:29 EL87XA > JN61FV 5209.6 miles 293° 2020-01-21 17:49:29
OE5RPP-1 1 2020-01-14 15:38:02 2020-01-14 15:38:02 JN67RW > JN61FV 420.2 miles 6° 2020-01-14 15:38:02
KB6IGK 1 2020-01-18 20:06:19 2020-01-18 20:06:19 EM10CJ > JN61FV 5754.9 miles 305° 2020-01-18 20:06:19
SM3XLY-1 18 2020-01-07 19:36:18 2020-01-21 16:31:14 JP80OQ > JN61FV 1311.6 miles 7° 2020-01-21 16:31:14
RV4CQ-6 8 2020-01-01 01:13:46 2020-01-21 14:55:57 LO31AM > JN61FV 1704.1 miles 55° 2020-01-21 14:55:57
KI4ASK-7 1 2020-01-04 09:52:03 2020-01-04 09:52:03 EM73SM > JN61FV 5034.9 miles 300° 2020-01-04 09:52:03
KB6LTY-3 22 2020-01-01 12:10:51 2020-01-19 22:34:37 DM14JL > JN61FV 6267.6 miles 321° 2020-01-19 22:34:37
K3RRR 2 2020-01-06 01:42:23 2020-01-06 01:42:59 FM19LL > JN61FV 4458.2 miles 301° 2020-01-06 01:42:59
KE4AZZ 4 2020-01-02 09:50:36 2020-01-14 21:49:36 EL87WA > JN61FV 5215.0 miles 294° 2020-01-14 21:49:36
KK4YEL-1 1 2020-01-05 22:30:45 2020-01-05 22:30:45 EL98PK > JN61FV 5085.5 miles 294° 2020-01-05 22:30:45
KC7BXS-7 3 2020-01-04 03:15:07 2020-01-04 03:16:27 DM33WN > JN61FV 6148.7 miles 317° 2020-01-04 03:16:27
DB1DT-7 4 2020-01-02 02:01:03 2020-01-21 14:52:50 JN49XC > JN61FV 510.8 miles 347° 2020-01-21 14:52:50
DO5MMH-9 1 2020-01-19 18:04:04 2020-01-19 18:04:04 JO31MK > JN61FV 708.0 miles 341° 2020-01-19 18:04:04
N6UTC-9 4 2020-01-14 00:05:26 2020-01-14 23:17:27 DM03VV > JN61FV 6335.0 miles 321° 2020-01-14 23:17:27
EI7BFB 8 2020-01-17 16:26:20 2020-01-21 18:03:38 IO63UJ > JN61FV 1173.1 miles 319° 2020-01-21 18:03:38
KD9JJR-7 5 2020-01-02 08:12:07 2020-01-21 19:25:14 EN52XW > JN61FV 4775.2 miles 310° 2020-01-21 19:25:14
KE4AZZ-6 25 2020-01-01 10:40:55 2020-01-17 19:22:36 EL87WA > JN61FV 5215.0 miles 294° 2020-01-17 19:22:36
VE7FED-12 13 2020-01-04 09:44:00 2020-01-19 22:32:13 CN88GN > JN61FV 5631.6 miles 332° 2020-01-19 22:32:13
W9QO 18 2020-01-02 03:19:43 2020-01-17 19:24:01 EM84CD > JN61FV 4976.2 miles 300° 2020-01-17 19:24:01
K4SQC-6 1 2020-01-07 07:27:59 2020-01-07 07:27:59 EM74VB > JN61FV 4999.4 miles 300° 2020-01-07 07:27:59
F8FFP-10 2 2020-01-21 14:50:14 2020-01-21 14:51:24 JN36DV > JN61FV 462.1 miles 321° 2020-01-21 14:51:24
IK1COA-1 7 2020-01-01 02:48:31 2020-01-05 02:51:32 JN44OI > JN61FV 236.1 miles 317° 2020-01-05 02:51:32
EA1JN-6 29 2020-01-02 03:34:54 2020-01-21 14:49:51 IN52RU > JN61FV 1073.0 miles 281° 2020-01-21 14:49:51
SP7DAD-3 16 2020-01-09 18:01:49 2020-01-19 16:27:47 JO91RT > JN61FV 758.8 miles 23° 2020-01-19 16:27:47
ON4BN-5 1 2020-01-12 17:14:35 2020-01-12 17:14:35 JO21QB > JN61FV 716.8 miles 334° 2020-01-12 17:14:35
N0BPI-7 2 2020-01-04 08:11:10 2020-01-19 21:01:38 EN34KR > JN61FV 4894.6 miles 314° 2020-01-19 21:01:38
E24TVS-2 2 2020-01-08 20:49:25 2020-01-19 06:56:27 OK17KV > JN61FV 5416.8 miles 76° 2020-01-19 06:56:27
N4TRQ-9 1 2020-01-06 08:17:24 2020-01-06 08:17:24 FM16WU > JN61FV 4522.0 miles 298° 2020-01-06 08:17:24
G4DCQ-7 7 2020-01-14 18:50:56 2020-01-19 19:42:09 JO02PW > JN61FV 919.7 miles 330° 2020-01-19 19:42:09
KK6OTJ 2 2020-01-14 23:17:10 2020-01-14 23:18:26 DM04NH > JN61FV 6333.0 miles 322° 2020-01-14 23:18:26
VK4ZQ 3 2020-01-18 01:13:35 2020-01-18 01:16:02 QG62MO > JN61FV 10003.6 miles 78° 2020-01-18 01:16:02
TA5AHO-4 2 2020-01-19 11:40:12 2020-01-19 11:40:52 KM76CM > JN61FV 1217.5 miles 101° 2020-01-19 11:40:52
KI7WKZ-9 2 2020-01-13 00:54:19 2020-01-13 00:55:32 CN85QH > JN61FV 5801.0 miles 330° 2020-01-13 00:55:32
JO1MVU-6 1 2020-01-10 07:52:38 2020-01-10 07:52:38 PM96QK > JN61FV 6067.7 miles 40° 2020-01-10 07:52:38
9Z4DZ-2 4 2020-01-03 22:28:38 2020-01-19 02:51:30 FK90GD > JN61FV 4923.8 miles 267° 2020-01-19 02:51:30
WN9M 1 2020-01-19 21:01:49 2020-01-19 21:01:49 EN55DE > JN61FV 4742.9 miles 312° 2020-01-19 21:01:49
KL7JKC-6 11 2020-01-01 09:02:38 2020-01-18 20:12:37 EM77NK > JN61FV 4881.8 miles 303° 2020-01-18 20:12:37
AI4LL-2 5 2020-01-05 00:56:33 2020-01-19 02:42:53 EM97XA > JN61FV 4689.1 miles 301° 2020-01-08 23:23:13
IK2TIF 5 2020-01-02 01:59:43 2020-01-13 16:25:23 JN45HR > JN61FV 326.4 miles 326° 2020-01-13 16:25:23
PC1L-2 2 2020-01-19 14:47:58 2020-01-21 14:50:26 JO20UU > JN61FV 695.7 miles 335° 2020-01-21 14:50:26
IT9FTP 7 2020-01-04 20:21:37 2020-01-17 18:06:29 JM77AO > JN61FV 308.5 miles 164° 2020-01-17 18:06:29
IZ1ZPJ-3 17 2020-01-06 00:27:35 2020-01-21 14:52:44 JN46DB > JN61FV 355.3 miles 325° 2020-01-21 14:52:44
VE2NGO-6 1 2020-01-10 23:25:14 2020-01-10 23:25:14 FN35GL > JN61FV 4084.2 miles 305° 2020-01-10 23:25:14
ON2VHF-1 2 2020-01-13 18:00:52 2020-01-14 20:26:47 JO20EL > JN61FV 706.7 miles 330° 2020-01-14 20:26:47
JA3FWT 4 2020-01-10 07:51:08 2020-01-14 06:16:34 PM74UW > JN61FV 6024.3 miles 43° 2020-01-14 06:16:34
EA1CIU-6 35 2019-12-31 21:51:54 2020-01-21 14:49:23 IN52QK > JN61FV 1078.4 miles 279° 2020-01-21 14:49:23
VE7OK-7 3 2020-01-12 01:43:40 2020-01-20 00:10:02 CN89LA > JN61FV 5596.4 miles 332° 2020-01-20 00:10:02
HS6KLJ-6 15 2020-01-04 10:50:38 2020-01-19 06:54:10 OK03CM > JN61FV 5477.9 miles 81° 2020-01-19 06:54:10
DL8BU-7 6 2020-01-01 22:46:08 2020-01-19 14:52:28 JN48FF > JN61FV 477.8 miles 337° 2020-01-19 14:52:28
N4DJC 2 2020-01-05 09:04:06 2020-01-05 09:06:41 EM84PN > JN61FV 4908.7 miles 300° 2020-01-05 09:06:41
XE2OCM 17 2020-01-01 12:15:47 2020-01-21 19:21:52 DL95UP > JN61FV 6098.7 miles 304° 2020-01-21 19:21:52
KN4LQN-6 2 2020-01-01 02:33:07 2020-01-01 04:07:29 FM17EI > JN61FV 4569.6 miles 300° 2020-01-01 04:07:29
VK1AMG 3 2020-01-07 21:52:47 2020-01-10 19:26:26 QF44NM > JN61FV 10075.9 miles 94° 2020-01-10 19:26:26
EA2BJM 4 2020-01-13 16:23:26 2020-01-19 14:48:38 IN91NQ > JN61FV 686.4 miles 273° 2020-01-19 14:48:38
KJ7HZD 5 2020-01-06 04:53:41 2020-01-19 04:13:08 CN98AM > JN61FV 5597.9 miles 331° 2020-01-19 04:13:08
KD7YZ-15 2 2020-01-03 09:03:13 2020-01-12 06:41:42 EM88LL > JN61FV 4757.9 miles 303° 2020-01-12 06:41:42
UA1WBM 2 2020-01-11 16:26:05 2020-01-11 16:27:18 KO38XT > JN61FV 1345.5 miles 24° 2020-01-11 16:27:18
KK5MV-14 5 2020-01-13 22:30:57 2020-01-19 20:59:06 EM02IE > JN61FV 5731.4 miles 308° 2020-01-19 20:59:06
DU6DKL-5 18 2020-01-15 06:09:11 2020-01-19 06:57:27 EP01CW > JN61FV 4338.4 miles 331° 2020-01-19 06:57:27
N0HQ 3 2020-01-12 23:21:03 2020-01-19 20:58:27 DM79NO > JN61FV 5571.7 miles 316° 2020-01-19 20:58:27
N4WXB-2 5 2020-01-01 02:30:20 2020-01-07 00:58:42 EM64DS > JN61FV 5121.3 miles 303° 2020-01-07 00:58:42
AD7FC 2 2020-01-04 11:20:31 2020-01-19 22:34:06 CN96RO > JN61FV 5673.3 miles 330° 2020-01-19 22:34:06
AD7FC-7 8 2020-01-09 02:30:09 2020-01-17 22:34:38 CN96RO > JN61FV 5673.3 miles 330° 2020-01-17 22:34:38
WA6RLR-1 1 2020-01-05 10:39:01 2020-01-05 10:39:01 DM13EK > JN61FV 6341.1 miles 320° 2020-01-05 10:39:01
K5ANE 1 2020-01-11 22:31:05 2020-01-11 22:31:05 EM12PX > JN61FV 5585.0 miles 307° 2020-01-11 22:31:05
PE1NSQ-2 3 2020-01-06 03:12:05 2020-01-06 04:42:05 PK10LR > JN61FV 6737.5 miles 68° 2020-01-06 04:42:05
ON4BN-1 1 2020-01-11 19:37:01 2020-01-11 19:37:01 JO21QB > JN61FV 716.8 miles 334° 2020-01-11 19:37:01
W6FX 1 2020-01-19 20:55:09 2020-01-19 20:55:09 DM12JR > JN61FV 6367.8 miles 320° 2020-01-19 20:55:09
KG4WOJ 6 2020-01-11 22:37:22 2020-01-19 02:47:11 FM16UQ > JN61FV 4533.5 miles 298° 2020-01-19 02:47:11
N2RRJ 1 2020-01-10 23:22:25 2020-01-10 23:22:25 FN20WA > JN61FV 4309.4 miles 300° 2020-01-10 23:22:25
NC3C-7 3 2020-01-13 02:31:55 2020-01-14 01:43:36 CN87XR > JN61FV 5645.3 miles 331° 2020-01-14 01:43:36
K0SWE-9 3 2020-01-14 00:07:52 2020-01-14 23:22:02 DM79LV > JN61FV 5560.3 miles 316° 2020-01-14 23:22:02
DL8ZLG-7 1 2020-01-14 20:27:42 2020-01-14 20:27:42 JO52OU > JN61FV 758.9 miles 356° 2020-01-14 20:27:42
MM0GYG-2 1 2020-01-12 15:53:55 2020-01-12 15:53:55 IO85JW > JN61FV 1195.1 miles 329° 2020-01-12 15:53:55
KE0QLX-7 1 2020-01-13 22:33:31 2020-01-13 22:33:31 EM29SB > JN61FV 5204.3 miles 310° 2020-01-13 22:33:31
EA1HLH-6 5 2020-01-17 22:48:59 2020-01-21 16:26:48 IN53QG > JN61FV 1072.0 miles 282° 2020-01-21 16:26:48
N7EGY-7 1 2020-01-17 22:34:05 2020-01-17 22:34:05 DN33XO > JN61FV 5597.1 miles 323° 2020-01-17 22:34:05

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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