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APRS station N4GMT-3 - show graphs
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Comment: Poplar & I-240 East Memphis
Location: 35°06.37' N 89°52.10' W - locator EM55BC55TL - show map - static map
6.8 miles South bearing 177° from Bartlett, Shelby County, Tennessee, United States [?]
10.6 miles East bearing 106° from Memphis, Shelby County, Tennessee, United States
10.7 miles East bearing 83° from New South Memphis, Shelby County, Tennessee, United States
11.2 miles Southwest bearing 220° from Lakeland, Shelby County, Tennessee, United States
Last position: 2020-09-26 22:27:29 EDT (12m8s ago)
2020-09-26 21:27:29 CDT local time at Bartlett, United States [?]
Device: Kantronics: KPC-3
Last path: N4GMT-3>APN383 via WIDE2-2,qAR,KK4IOH-15 (good)
Positions stored: 20
Packet rate: 1531 seconds between packets on average during 74996 seconds.
APRS digipeater – Statistics for 2020-09:
Stations heard directly: 94 on radio path – show map
Last heard a station directly: 2020-09-26 18:01:47 EDT (4h37m ago)
Normal receiver range estimate: 81 miles (Updated: 2020-09-26 18:01:47 EDT)
Position packets heard directly: 5094 on radio path
Stations near current position of N4GMT-3 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
WB4KOG B102.1 yards 180°2020-09-19 21:17:19 WB4KOG C102.1 yards 180°2020-09-19 21:17:19
WB4KOG-B102.1 yards 180°2020-09-19 21:17:04 WB4KOG-C102.1 yards 180°2020-09-19 21:17:04
53.01TN147.5 yards 214°2020-09-26 22:27:11 146.850TN183.0 yards 207°2020-09-26 22:25:11
224.780TN219.5 yards 202°2020-09-26 22:26:11 444.400TN257.0 yards 199°2020-09-26 22:26:11
KX4MQ-41.8 miles 20°2020-09-08 18:12:15 KK4SZO-71.8 miles 169°2020-09-13 13:53:20
KK4SZO-91.9 miles 169°2020-09-26 17:11:39 KN4BCD-92.0 miles 1°2020-09-25 17:06:32
PS-NS4B2.6 miles 139°2020-09-26 22:01:30 K2JLG-73.1 miles 224°2020-09-25 17:01:13
N4GJ B3.3 miles 107°2020-09-26 22:20:34 N4GJ-B3.3 miles 107°2020-09-26 22:20:44
KE5OPL-153.6 miles 107°2020-09-14 22:26:33 WA4HFN3.9 miles 230°2020-09-26 21:03:45
KX4MQ-153.9 miles 107°2020-09-20 11:46:44 443.20+R4.1 miles 281°2020-09-22 15:02:10
Stations which heard N4GMT-3 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
N4XWC 1 2020-09-05 04:24:08 2020-09-05 04:24:08 EM55BC > EM63NU 192.2 miles 116° 2020-09-05 04:24:08
K4TQR-1 1 2020-09-05 06:57:33 2020-09-05 06:57:33 EM55BC > EM63PN 209.7 miles 120° 2020-09-05 06:57:33
AB4KN-2 1 2020-09-05 07:44:37 2020-09-05 07:44:37 EM55BC > EM73RL 322.3 miles 109° 2020-09-05 07:44:37
N9UMJ-10 1 2020-09-06 22:03:58 2020-09-06 22:03:58 EM55BC > EM68QR 307.6 miles 34° 2020-09-06 22:03:58
LTROCK 7 2020-09-06 20:58:05 2020-09-13 09:03:31 EM55BC > EM34ST 150.4 miles 263° 2020-09-13 09:03:31
HOTSPR 4 2020-09-07 04:24:33 2020-09-07 10:14:51 EM55BC > EM34LM 186.6 miles 258° 2020-09-07 10:14:51
W4BS-3 4 2020-09-05 04:50:09 2020-09-25 13:57:36 EM55BC > EM55BF 9.0 miles 351° 2020-09-25 13:57:36
WD4INS-4 1 2020-09-06 10:49:02 2020-09-06 10:49:02 EM55BC > EM67DB 181.0 miles 41° 2020-09-06 10:49:02
MTIDA 2 2020-09-06 02:30:02 2020-09-06 12:30:28 EM55BC > EM34EL 216.3 miles 259° 2020-09-06 12:30:28
K4MSU-5 7 2020-09-06 02:05:49 2020-09-11 04:08:45 EM55BC > EM56WW 159.7 miles 38° 2020-09-11 04:08:45
KJ4AJP-5 75 2020-09-04 05:29:09 2020-09-13 07:48:30 EM55BC > EM56NI 102.2 miles 33° 2020-09-13 07:48:30
WB4KOG-4 8 2020-09-06 09:59:34 2020-09-26 11:37:33 EM55BC > EM55EC 15.4 miles 92° 2020-09-26 11:37:33
KB0WLF-10 1 2020-09-05 06:29:07 2020-09-05 06:29:07 EM55BC > EM47IS 201.1 miles 337° 2020-09-05 06:29:07
HEBERS 8 2020-09-05 03:35:22 2020-09-07 10:59:32 EM55BC > EM35XL 123.9 miles 283° 2020-09-07 10:59:32
WB9EOC-10 1 2020-09-06 22:04:04 2020-09-06 22:04:04 EM55BC > EM69NP 352.7 miles 27° 2020-09-06 22:04:04
W1OB-7 1 2020-09-07 02:40:01 2020-09-07 02:40:01 EM55BC > EM57HN 171.3 miles 10° 2020-09-07 02:40:01
AJ4GY 730 2020-08-31 20:14:24 2020-09-26 21:12:29 EM55BC > EM55BF 8.8 miles 10° 2020-09-26 21:12:29
K3JAE-1 2 2020-09-05 07:44:06 2020-09-06 10:49:00 EM55BC > EM56VA 111.5 miles 54° 2020-09-06 10:49:00
KD5CKP-3 325 2020-08-31 20:39:24 2020-09-08 19:53:49 EM55BC > EM54AT 20.8 miles 200° 2020-09-08 19:53:49
W5TCR 2 2020-09-09 07:58:49 2020-09-14 01:23:16 EM55BC > EM54VS 94.6 miles 103° 2020-09-14 01:23:16
WB4KOG-3 19 2020-09-05 20:14:42 2020-09-26 16:14:14 EM55BC > EM45XD 8.8 miles 285° 2020-09-26 16:14:14
KQ5T-5 1 2020-09-06 06:39:35 2020-09-06 06:39:35 EM55BC > EM32QM 238.9 miles 223° 2020-09-06 06:39:35
KD9IWV-6 5 2020-09-07 03:29:04 2020-09-14 07:58:28 EM55BC > EM57SN 187.7 miles 24° 2020-09-14 07:58:28
KM4USQ-5 93 2020-09-03 23:14:11 2020-09-24 18:47:39 EM55BC > EM55CA 6.6 miles 144° 2020-09-24 18:47:39
KA7UEC-10 26 2020-09-02 22:39:16 2020-09-12 16:23:33 EM55BC > EM55EB 12.1 miles 104° 2020-09-12 16:23:33
W5TCB-10 2 2020-09-05 03:34:06 2020-09-05 05:14:06 EM55BC > EM34KJ 190.7 miles 256° 2020-09-05 05:14:06
W4ZZK-11 3 2020-09-05 06:54:06 2020-09-05 11:04:04 EM55BC > EM64CQ 121.3 miles 103° 2020-09-05 11:04:04
W5HAR-3 4 2020-09-07 04:00:06 2020-09-21 04:07:59 EM55BC > EM44QM 59.5 miles 226° 2020-09-21 04:07:59
KK4IOH-15 199 2020-09-18 22:48:05 2020-09-26 22:27:29 EM55BC > EM45XD 8.7 miles 283° 2020-09-26 22:27:29

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 N4GMT-3
callsign pkts first heard - EDT last heard longest (rx => tx) longest at - EDT
N4XWC 2 2020-09-05 04:09:39 2020-09-05 10:28:55 EM63NU > EM55BC 192.2 miles 116° 2020-09-05 10:28:55
KI4LOA-14 26 2020-09-02 16:25:16 2020-09-14 15:34:02 EM45VF > EM55BC 20.4 miles 291° 2020-09-12 14:24:16
K5ROK-14 300 2020-09-01 08:26:19 2020-09-24 18:17:09 EM45WD > EM55BC 12.6 miles 279° 2020-09-13 11:04:01
AA9QF-14 10 2020-09-09 17:29:40 2020-09-18 15:15:46 EM45WD > EM55BC 14.0 miles 284° 2020-09-09 17:55:10
K4MSU-3 1 2020-09-07 11:09:29 2020-09-07 11:09:29 EM56UO > EM55BC 135.3 miles 39° 2020-09-07 11:09:29
K5DUG-2 4 2020-09-18 06:15:09 2020-09-18 06:32:36 EM45WD > EM55BC 15.5 miles 282° 2020-09-18 06:32:36
W4BS-3 25 2020-09-04 01:42:20 2020-09-08 05:42:53 EM55BF > EM55BC 9.0 miles 351° 2020-09-08 05:42:53
WD4INS-4 5 2020-09-05 13:46:39 2020-09-07 09:21:52 EM67DB > EM55BC 181.0 miles 41° 2020-09-07 09:21:52
KC5DAQ-7 3 2020-09-19 17:34:34 2020-09-19 17:52:50 EM55DF > EM55BC 11.0 miles 43° 2020-09-19 17:52:00
N4WTW-1 14 2020-09-07 16:34:41 2020-09-07 17:22:29 EM45UD > EM55BC 25.4 miles 277° 2020-09-07 17:22:29
KB0ZTX-12 271 2020-09-01 07:28:49 2020-09-19 08:22:23 EM54DT > EM55BC 22.5 miles 151° 2020-09-13 16:19:52
W3TOM-9 13 2020-09-01 19:21:04 2020-09-02 11:22:08 EM54GR > EM55BC 34.0 miles 136° 2020-09-02 11:22:08
K5MDK-1 23 2020-09-08 15:29:52 2020-09-13 09:37:55 EM55GJ > EM55BC 31.8 miles 52° 2020-09-12 22:22:42
WX4EMT-9 86 2020-09-01 08:22:38 2020-09-24 21:55:31 EM55EG > EM55BC 19.4 miles 49° 2020-09-19 21:20:40
K5OLV-14 992 2020-09-07 17:35:30 2020-09-25 16:19:08 EM54DX > EM55BC 13.9 miles 135° 2020-09-07 17:35:30
WA0TOP-1 5 2020-09-05 04:43:56 2020-09-26 09:33:50 EM47KQ > EM55BC 192.7 miles 339° 2020-09-26 09:33:50
WB4KOG-1 15 2020-09-02 02:53:05 2020-09-12 02:52:22 EM55HF > EM55BC 30.9 miles 72° 2020-09-12 02:52:22
WB4KOG-2 1 2020-09-06 05:58:04 2020-09-06 05:58:04 EM55FI > EM55BC 25.9 miles 50° 2020-09-06 05:58:04
KF7UXW-9 6 2020-09-20 09:52:05 2020-09-20 11:06:04 EM44JV > EM55BC 75.9 miles 260° 2020-09-20 09:52:05
NS4X-1 65 2020-09-08 17:52:16 2020-09-24 19:25:07 EM55GD > EM55BC 21.8 miles 81° 2020-09-10 09:07:39
KK4IOH-9 2 2020-09-25 21:13:27 2020-09-25 21:24:14 EM55AD > EM55BC 7.4 miles 281° 2020-09-25 21:13:27
KA0JJH-9 14 2020-09-03 17:38:58 2020-09-03 18:39:02 EM45UH > EM55BC 26.8 miles 304° 2020-09-03 17:38:58
KJ4HRM-10 22 2020-08-31 22:36:30 2020-09-26 16:04:25 EM56IB > EM55BC 73.5 miles 27° 2020-09-26 16:04:25
KA7UEC-7 212 2020-09-03 09:02:02 2020-09-24 10:12:11 EM55DA > EM55BC 11.3 miles 116° 2020-09-20 14:04:00
KE4IVN-7 160 2020-09-11 12:43:02 2020-09-21 19:14:41 EM55DA > EM55BC 12.2 miles 114° 2020-09-11 12:43:02
CASH 3 2020-09-08 04:22:36 2020-09-25 20:21:56 EM45MT > EM55BC 80.0 miles 308° 2020-09-25 20:21:56
KK4SZO-9 58 2020-09-02 19:38:07 2020-09-26 16:48:18 EM55DA > EM55BC 9.6 miles 126° 2020-09-10 14:27:51
KK4SZO-7 83 2020-09-07 21:07:02 2020-09-13 13:53:20 EM55BB > EM55BC 1.8 miles 169° 2020-09-13 13:53:20
HEBERS 8 2020-08-31 21:01:39 2020-09-26 10:58:34 EM35XL > EM55BC 123.9 miles 283° 2020-09-26 10:58:34
AD4CJ-9 6 2020-09-17 16:07:59 2020-09-17 16:31:11 EM55FI > EM55BC 27.0 miles 50° 2020-09-17 16:07:59
KE5OPL-15 8 2020-09-14 21:44:19 2020-09-14 22:14:53 EM54AT > EM55BC 20.5 miles 198° 2020-09-14 21:44:19
N5DDG-9 4 2020-09-07 12:42:12 2020-09-08 18:50:47 EM45VK > EM55BC 30.2 miles 318° 2020-09-07 12:42:12
W1OB-7 2 2020-09-07 09:17:10 2020-09-15 09:12:22 EM57HN > EM55BC 171.7 miles 10° 2020-09-15 09:12:22
AJ4GY-8 132 2020-09-01 08:17:05 2020-09-18 17:43:00 EM55CG > EM55BC 10.7 miles 17° 2020-09-03 20:55:39
KD5CKP-3 81 2020-08-31 23:07:53 2020-09-08 17:23:48 EM54AT > EM55BC 20.8 miles 200° 2020-09-08 17:23:48
AK4IT-14 2 2020-09-10 14:55:30 2020-09-10 15:21:35 EM45WO > EM55BC 36.2 miles 336° 2020-09-10 15:21:35
KM4YSW 15 2020-09-01 15:44:42 2020-09-19 14:30:04 EM55DN > EM55BC 32.3 miles 12° 2020-09-01 16:24:54
WB4KOG-3 12 2020-09-05 12:03:35 2020-09-14 07:43:14 EM45XD > EM55BC 8.8 miles 285° 2020-09-14 07:43:14
KM4TMA-9 17 2020-09-06 14:18:26 2020-09-06 14:45:20 EM45XD > EM55BC 10.3 miles 288° 2020-09-06 14:18:26
K5ROK-1 1 2020-09-08 07:32:29 2020-09-08 07:32:29 EM32MK > EM55BC 256.0 miles 225° 2020-09-08 07:32:29
KD9KSK-7 2 2020-09-06 14:26:17 2020-09-06 14:33:37 EM45WD > EM55BC 14.0 miles 284° 2020-09-06 14:33:37
KM4USQ-5 42 2020-09-05 03:43:45 2020-09-12 14:22:45 EM55CA > EM55BC 6.6 miles 144° 2020-09-12 14:22:45
N4GMF-5 15 2020-09-07 09:19:54 2020-09-23 01:13:26 EM55NQ > EM55BC 68.4 miles 54° 2020-09-23 01:13:26
KD0M-9 2 2020-09-21 12:07:30 2020-09-21 12:13:27 EM56DN > EM55BC 100.1 miles 6° 2020-09-21 12:07:30
WX4BEG-9 5 2020-09-04 07:53:04 2020-09-07 14:55:40 EM55EH > EM55BC 20.5 miles 49° 2020-09-04 07:53:04
KO4MC-9 17 2020-09-05 11:08:55 2020-09-10 12:24:12 EM55DK > EM55BC 24.1 miles 21° 2020-09-10 12:24:12
K3ME-14 1 2020-09-17 12:24:33 2020-09-17 12:24:33 EM55BD > EM55BC 4.0 miles 338° 2020-09-17 12:24:33
KN4RBW-9 15 2020-09-07 16:19:15 2020-09-20 11:36:37 EM45XQ > EM55BC 42.1 miles 346° 2020-09-07 16:19:15
KM4RT-9 258 2020-08-31 20:15:59 2020-09-22 19:35:22 EM55DO > EM55BC 35.9 miles 11° 2020-09-07 10:41:37
KM4RT 13 2020-09-01 21:17:39 2020-09-24 20:39:23 EM55EK > EM55BC 27.1 miles 30° 2020-09-24 20:39:23
WA5CC-7 10 2020-08-31 20:01:14 2020-09-14 04:21:31 EM45PK > EM55BC 51.2 miles 298° 2020-09-14 04:21:31
KI4ZLH-9 11 2020-09-02 19:27:03 2020-09-03 20:52:00 EM55FH > EM55BC 21.7 miles 49° 2020-09-03 19:18:39
K7VR-14 2 2020-08-31 20:06:37 2020-09-22 13:59:43 EM45WP > EM55BC 39.2 miles 342° 2020-08-31 20:06:37
N5OEZ-9 1 2020-09-05 12:41:44 2020-09-05 12:41:44 EM34KC > EM55BC 194.9 miles 251° 2020-09-05 12:41:44
N1MB-7 170 2020-09-02 05:53:50 2020-09-02 10:44:48 EM55CF > EM55BC 10.5 miles 38° 2020-09-02 10:44:48
KW4RM-9 5 2020-09-05 08:11:33 2020-09-18 21:22:16 EM55DK > EM55BC 25.3 miles 18° 2020-09-18 21:15:30
AB0TL-1 2 2020-09-05 10:48:43 2020-09-05 11:13:45 EM47OW > EM55BC 202.3 miles 346° 2020-09-05 11:13:45
K5AE-15 5 2020-09-13 14:46:55 2020-09-13 14:54:50 EM55CE > EM55BC 7.1 miles 33° 2020-09-13 14:46:55
KC5ULR 183 2020-08-31 20:03:51 2020-09-26 14:58:15 EM55EN > EM55BC 32.2 miles 21° 2020-09-13 19:39:59
K4IMW-7 10 2020-09-08 13:50:17 2020-09-08 14:13:51 EM45WD > EM55BC 16.0 miles 282° 2020-09-08 13:50:17
AI4GI-9 107 2020-09-05 11:27:46 2020-09-25 16:15:46 EM55DK > EM55BC 25.1 miles 22° 2020-09-24 13:26:01
KN4VPG-9 3 2020-09-19 09:53:17 2020-09-19 10:28:31 EM45XB > EM55BC 8.9 miles 254° 2020-09-19 10:28:31
KK4IOH-2 105 2020-09-17 17:39:07 2020-09-24 19:40:19 EM45WD > EM55BC 15.2 miles 283° 2020-09-19 20:07:00
KF5SC 1 2020-09-08 06:00:10 2020-09-08 06:00:10 EM52BF > EM55BC 198.7 miles 179° 2020-09-08 06:00:10
KB4CO-9 6 2020-09-03 07:09:50 2020-09-17 13:13:16 EM55AB > EM55BC 6.1 miles 251° 2020-09-03 07:09:50
AA4HV-9 42 2020-09-01 17:21:24 2020-09-22 04:51:39 EM54FT > EM55BC 25.9 miles 138° 2020-09-01 17:21:24
KK5PAC-9 20 2020-09-10 20:02:42 2020-09-19 16:31:50 EM54BW > EM55BC 10.4 miles 181° 2020-09-19 16:31:50
K5OLV-13 9 2020-09-08 20:40:17 2020-09-13 14:57:13 EM54BX > EM55BC 8.3 miles 191° 2020-09-13 14:57:13
W5HAR-3 37 2020-09-02 16:25:09 2020-09-25 06:25:00 EM44QM > EM55BC 59.5 miles 226° 2020-09-25 06:25:00
KB5DMT-11 25 2020-09-14 08:11:33 2020-09-17 18:02:45 EM54AW > EM55BC 14.2 miles 210° 2020-09-15 08:22:45
KM4USQ-9 545 2020-09-01 08:36:57 2020-09-26 12:35:59 EM55AA > EM55BC 10.0 miles 223° 2020-09-24 18:45:05
KJ4MDA-8 16 2020-09-08 19:51:55 2020-09-19 14:48:28 EM54BX > EM55BC 8.8 miles 178° 2020-09-19 14:21:19
KD5NDU-15 21 2020-09-01 09:59:45 2020-09-19 13:23:38 EM54FB > EM55BC 73.7 miles 165° 2020-09-19 13:23:38
KN4BCD-9 1 2020-09-25 17:06:32 2020-09-25 17:06:32 EM55BD > EM55BC 2.0 miles 1° 2020-09-25 17:06:32
AE6US-9 13 2020-09-10 08:37:09 2020-09-19 21:13:05 EM54AK > EM55BC 46.3 miles 184° 2020-09-10 08:37:09
KC4UG-2 1 2020-09-05 09:41:21 2020-09-05 09:41:21 EM63BM > EM55BC 157.3 miles 134° 2020-09-05 09:41:21
K2JLG-7 187 2020-09-01 13:41:32 2020-09-25 16:49:12 EM54BU > EM55BC 16.5 miles 180° 2020-09-09 12:12:24
KN4USN-7 65 2020-09-02 08:09:40 2020-09-25 17:07:15 EM44SV > EM55BC 37.5 miles 249° 2020-09-15 08:17:59
KF5EII-9 21 2020-09-12 18:08:22 2020-09-26 18:01:47 EM44JO > EM55BC 85.2 miles 246° 2020-09-26 18:01:47
KI4IQA 1 2020-08-31 20:43:27 2020-08-31 20:43:27 EM55SX > EM55BC 101.1 miles 52° 2020-08-31 20:43:27
CALLSN-5 3 2020-09-22 15:06:36 2020-09-26 09:59:44 OL63MA > EM55BC 8146.1 miles 336° 2020-09-26 09:59:44
KC9PFW-7 5 2020-09-01 11:50:26 2020-09-01 12:05:23 EM45VE > EM55BC 19.3 miles 283° 2020-09-01 12:05:23
KI4GIU-9 121 2020-09-01 08:21:42 2020-09-25 17:29:24 EM55FF > EM55BC 22.2 miles 68° 2020-09-05 16:02:57
KI4MRH-7 3 2020-09-19 11:51:01 2020-09-19 16:50:57 EM55CF > EM55BC 9.9 miles 41° 2020-09-19 11:51:01
KJ4GZB-9 33 2020-09-05 20:19:23 2020-09-25 13:19:06 EM55CK > EM55BC 23.8 miles 7° 2020-09-15 14:46:40
KI5JFX-9 3 2020-09-10 17:55:41 2020-09-16 19:00:11 EM54CW > EM55BC 11.3 miles 164° 2020-09-14 20:54:54
WB4KOG-5 1 2020-09-21 21:34:16 2020-09-21 21:34:16 EM55HC > EM55BC 27.5 miles 93° 2020-09-21 21:34:16
KF4DVW-7 5 2020-09-18 11:51:29 2020-09-18 12:04:29 EM45XD > EM55BC 11.8 miles 277° 2020-09-18 11:51:29
KD5BS 4 2020-09-08 12:27:07 2020-09-08 14:48:11 EM54BW > EM55BC 10.4 miles 181° 2020-09-08 14:48:11
KD5BS-1 125 2020-08-31 20:22:23 2020-09-08 16:12:55 EM54BW > EM55BC 10.4 miles 181° 2020-09-08 16:12:55
KI4BIY-1 11 2020-09-01 23:12:44 2020-09-15 00:21:55 EM55EL > EM55BC 28.9 miles 24° 2020-09-15 00:21:55
KG5IRU-11 54 2020-09-03 23:19:26 2020-09-23 14:26:00 EM54AT > EM55BC 20.5 miles 199° 2020-09-07 09:40:49
KM4MRS-9 2 2020-09-24 14:38:41 2020-09-24 15:41:08 EM55DE > EM55BC 12.3 miles 55° 2020-09-24 15:41:08
KK4IOH-15 20 2020-09-19 19:18:47 2020-09-24 15:36:56 EM45XD > EM55BC 8.7 miles 283° 2020-09-24 15:36:56

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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