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APRS station SR9NWC - show graphs
Comment: W3,SPn 80km Lubon W. alt=1040 Jerzy SP9FBT
Last status: PLXDigi: Digi SR9NWC na Luboniu Wielkim kolo Rabki
Location: 49°39.19' N 19°59.53' E - locator JN99XP96BS - show map
3.1 miles Northwest bearing 328° from Olszówka, Powiat limanowski, Lesser Poland Voivodeship, Poland [?]
3.3 miles North bearing 21° from Rabka-Zdrój, Powiat nowotarski, Lesser Poland Voivodeship, Poland
29.9 miles South bearing 174° from Kraków, Lesser Poland Voivodeship, Poland
59.9 miles Southeast bearing 134° from Katowice, Silesian Voivodeship, Poland
Last position: 2024-11-21 09:17:40 EST (1m3s ago)
2024-11-21 15:17:40 CET local time at Olszówka, Poland [?]
Last WX report: 2023-12-08 21:17:39 EST (348d 12h1m ago) – show weather charts
4.0 MPH Northwest
Last telemetry: 2024-11-21 09:07:35 EST (11m8s ago) – show telemetry
Temp: 27 C, Rx1h: 950 Pkt, Tx1h: 180 Pkt, Eff1h: 66 Pcnt, Eff: 66 Pcnt
 O1     O2     O3     O4     I1     I2     I3     I4 
Device: Microsat: PLXDigi
Last path: SR9NWC>APMI03 via qAO,SP9IPZ-13
Positions stored: 19
Packet rate: 197 seconds between packets on average during 9654 seconds.
Other SSIDs: SR9NWC-6
APRS digipeater – Statistics for 2024-11:
Stations heard directly: 52 on radio path – show map
Last heard a station directly: 2024-11-21 09:18:05 EST (38s ago)
Normal receiver range estimate: 43 miles (Updated: 2024-11-21 09:02:32 EST)
Position packets heard directly: 3858 on radio path
Stations near current position of SR9NWC - show more
callsign distance last heard - EST      callsign distance last heard - EST
SP/BZ-03148.2 yards 326°2024-11-11 10:37:05 SR9VHF0.4 miles 356°2024-11-09 16:00:01
3Z9VI/P2.6 miles 19°2024-11-16 07:08:40 SQ9DDL-D5.1 miles 212°2024-11-20 15:43:05
SQ9DDL B5.1 miles 212°2024-11-20 15:46:35 SQ9DDL-B5.1 miles 212°2024-11-20 15:46:45
SP/BZ-0585.5 miles 319°2024-11-01 04:10:02 SQ9FCI/P6.9 miles 82°2024-11-17 08:25:34
SO9AHM/P8.4 miles 21°2024-10-27 05:35:27 SP9OKZ/P8.4 miles 21°2024-11-17 05:40:26
SP/BZ-0599.1 miles 332°2024-11-01 03:51:20 SQ9PG-R9.2 miles 108°2024-11-15 14:27:14
SP/BZ-0249.2 miles 75°2024-11-16 03:42:36 SP9MA/P9.9 miles 124°2024-11-17 06:17:47
SP/BZ-0069.9 miles 124°2024-11-17 05:29:32 SQ9APD/P10.7 miles 39°2024-11-10 06:53:48
SR9UVP B11.0 miles 306°2024-11-21 09:03:43 SR9UVP-B11.0 miles 306°2024-11-21 09:03:53
SR9P11.4 miles 304°2024-11-21 09:00:02 SQ9OKR-1211.4 miles 216°2024-11-21 09:09:47
Stations which heard SR9NWC directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
OE6XTR 2 2024-10-31 20:33:22 2024-10-31 21:42:23 JN99XP > JN77VN 239.5 miles 235° 2024-10-31 21:42:23
SR3DPN 1 2024-11-10 03:15:11 2024-11-10 03:15:11 JN99XP > JO82KL 235.5 miles 327° 2024-11-10 03:15:11
SR6NWS 2 2024-11-10 06:06:15 2024-11-16 01:43:29 JN99XP > JO80FQ 170.5 miles 296° 2024-11-16 01:43:29
SR5DRA-10 15 2024-10-31 21:55:29 2024-11-10 06:50:32 JN99XP > KO01NJ 131.3 miles 22° 2024-11-10 06:50:32
SR3NJE 14 2024-10-31 20:41:41 2024-11-10 14:46:07 JN99XP > JO72PI 276.5 miles 314° 2024-11-10 14:46:07
SP7PGK-15 10 2024-11-06 04:51:47 2024-11-08 20:53:33 JN99XP > JO91RR 146.2 miles 352° 2024-11-08 20:53:33
SR4NWU 17 2024-11-08 13:29:04 2024-11-10 14:21:44 JN99XP > KO03WW 306.3 miles 14° 2024-11-10 14:21:44
OK0BCA-1 12 2024-11-04 16:53:46 2024-11-16 02:58:11 JN99XP > JO70UQ 202.7 miles 292° 2024-11-16 02:58:11
SR9NDJ 2 2024-11-10 03:15:16 2024-11-10 05:33:23 JN99XP > JO90RN 66.9 miles 339° 2024-11-10 05:33:23
SR6NKB 40 2024-10-31 21:12:12 2024-11-19 14:24:17 JN99XP > JO80RG 121.2 miles 291° 2024-11-19 14:24:17
SR3NKI 6 2024-10-31 20:41:25 2024-11-10 17:50:02 JN99XP > JO81HU 211.9 miles 317° 2024-11-10 17:50:02
SP9DLM 85 2024-10-31 22:51:25 2024-11-21 06:43:32 JN99XP > JO90KH 67.2 miles 313° 2024-11-21 06:43:32
SR7NST 454 2024-11-01 05:49:42 2024-11-20 21:29:05 JN99XP > KO00MN 78.5 miles 37° 2024-11-20 21:29:05
SR5NWR 25 2024-11-01 05:19:52 2024-11-12 07:03:14 JN99XP > KO02QV 231.2 miles 15° 2024-11-12 07:03:14
SP2GG-4 3 2024-11-10 04:16:08 2024-11-11 04:26:42 JN99XP > JO83VA 251.3 miles 338° 2024-11-11 04:26:42
SP7XFF-1 22 2024-10-31 20:10:13 2024-11-08 16:29:04 JN99XP > KO01NJ 129.8 miles 22° 2024-11-08 16:29:04
SP7PZS-2 6 2024-10-31 20:56:25 2024-11-11 02:39:38 JN99XP > JO91LO 141.3 miles 342° 2024-11-11 02:39:38
SR8NPU 94 2024-10-31 20:56:20 2024-11-16 10:25:58 JN99XP > KO01XH 144.5 miles 36° 2024-11-16 10:25:58
SR9NSK 107 2024-11-06 08:30:50 2024-11-18 02:21:04 JN99XP > JN99MQ 43.0 miles 273° 2024-11-18 02:21:04
SR5ZU 1 2024-11-08 18:15:17 2024-11-08 18:15:17 JN99XP > JO93WB 235.6 miles 359° 2024-11-08 18:15:17
SP9UVG-13 1477 2024-10-31 20:33:15 2024-11-21 08:52:50 JN99XP > JO90OE 49.6 miles 317° 2024-11-21 08:52:50
SR9POD 27 2024-11-02 01:43:00 2024-11-18 11:55:49 JN99XP > KO00CA 26.7 miles 25° 2024-11-18 11:55:49
OK0DJ-1 1 2024-11-16 00:39:15 2024-11-16 00:39:15 JN99XP > JO70LR 233.5 miles 291° 2024-11-16 00:39:15
OK1TZL-1 1 2024-10-31 20:10:16 2024-10-31 20:10:16 JN99XP > JO60KI 318.3 miles 282° 2024-10-31 20:10:16
SR8NPU-10 4 2024-11-01 13:26:14 2024-11-05 10:26:39 JN99XP > KO01XH 144.5 miles 36° 2024-11-05 10:26:39
SR4SU-15 2 2024-11-09 20:33:42 2024-11-10 09:35:27 JN99XP > KO14KE 336.7 miles 20° 2024-11-10 09:35:27
SR5NWA 11 2024-10-31 20:04:19 2024-11-09 19:57:46 JN99XP > KO02MD 178.7 miles 14° 2024-11-09 19:57:46
UR7D-1 7 2024-11-08 06:01:28 2024-11-08 09:52:41 JN99XP > KN18JT 140.1 miles 114° 2024-11-08 09:52:41
SR9NFB 7 2024-11-05 07:55:25 2024-11-15 11:31:39 JN99XP > KN09GL 28.3 miles 117° 2024-11-15 11:31:39
SR5AWG 1 2024-11-12 10:04:25 2024-11-12 10:04:25 JN99XP > KO01TV 170.9 miles 24° 2024-11-12 10:04:25
SR9GM-2 16 2024-11-04 16:47:42 2024-11-18 23:26:27 JN99XP > JN99JQ 52.4 miles 273° 2024-11-18 23:26:27
SQ9IWS 440 2024-11-03 15:55:06 2024-11-20 12:55:31 JN99XP > JO90OD 49.9 miles 313° 2024-11-20 12:55:31
SR9WXM 116 2024-11-02 23:51:07 2024-11-20 15:18:38 JN99XP > JN99NS 39.4 miles 283° 2024-11-20 15:18:38
DO9HM-10 2 2024-11-16 00:39:17 2024-11-16 01:59:28 JN99XP > JN59UV 369.6 miles 276° 2024-11-16 01:59:28
SQ9CH 504 2024-10-31 22:32:37 2024-11-20 18:41:05 JN99XP > JO90NH 58.5 miles 319° 2024-11-20 18:41:05
SP9SVH-10 165 2024-11-11 12:38:05 2024-11-19 15:16:15 JN99XP > JO90VC 33.1 miles 345° 2024-11-19 15:16:15
SR9KFZ 790 2024-10-31 20:10:16 2024-11-21 07:05:33 JN99XP > JO90NU 90.5 miles 336° 2024-11-21 07:05:33
DB0LOS 33 2024-10-31 23:37:27 2024-11-10 07:28:27 JN99XP > JO72AH 317.5 miles 308° 2024-11-10 07:28:27
LY1BWB-2 38 2024-11-09 15:44:31 2024-11-10 13:37:53 JN99XP > KO15FL 416.4 miles 13° 2024-11-10 13:37:53
SR9NH 336 2024-11-01 02:09:29 2024-11-17 08:41:11 JN99XP > JO90XC 30.4 miles 358° 2024-11-17 08:41:11
SQ9NKX-10 751 2024-10-31 21:01:11 2024-11-20 10:55:30 JN99XP > JO90QL 62.8 miles 335° 2024-11-20 10:55:30
SR9WXP 10 2024-11-07 10:56:33 2024-11-11 14:10:15 JN99XP > JN99PM 31.2 miles 255° 2024-11-11 14:10:15
SQ5BUJ-15 1 2024-10-31 22:51:22 2024-10-31 22:51:22 JN99XP > KO02IB 169.2 miles 10° 2024-10-31 22:51:22
SR6NWR 1 2024-10-31 22:18:15 2024-10-31 22:18:15 JN99XP > JO81LC 167.4 miles 308° 2024-10-31 22:18:15
ALLURA 154 2024-11-13 18:31:07 2024-11-14 18:33:31 JN99XP > JO90QN 69.9 miles 336° 2024-11-14 18:33:31
SP9INZ-7 5 2024-11-02 15:54:49 2024-11-09 09:59:11 JN99XP > JO90OH 57.0 miles 321° 2024-11-07 10:47:29
SR5DRK 459 2024-10-31 23:37:32 2024-11-21 08:36:51 JN99XP > KO01GI 120.5 miles 12° 2024-11-21 08:36:51
SR9LC-1 27 2024-11-02 14:18:34 2024-11-03 04:54:28 JN99XP > JO90HQ 93.7 miles 321° 2024-11-03 04:54:28
SP3KQV-1 34 2024-10-31 22:28:28 2024-11-11 03:12:40 JN99XP > JO91AR 167.2 miles 331° 2024-11-11 03:12:40
SR7NSI 90 2024-10-31 20:04:20 2024-11-13 00:43:06 JN99XP > JO91IO 144.9 miles 338° 2024-11-13 00:43:06
SP9ZCF-10 347 2024-11-05 15:02:55 2024-11-20 09:17:10 JN99XP > JO90MF 60.1 miles 314° 2024-11-20 09:17:10
SR9NWT 97 2024-11-01 11:30:11 2024-11-21 08:55:40 JN99XP > JN99XH 23.1 miles 184° 2024-11-21 08:55:40
SR7EOP 11 2024-10-31 20:28:09 2024-11-01 04:36:42 JN99XP > KO01DI 119.1 miles 6° 2024-11-01 04:36:42
OE3XIR-10 1 2024-11-16 04:40:35 2024-11-16 04:40:35 JN99XP > JN78VD 218.2 miles 243° 2024-11-16 04:40:35
SR9NSK-4 5 2024-11-01 02:20:40 2024-11-11 02:39:28 JN99XP > JN99MQ 43.0 miles 273° 2024-11-11 02:39:28
SR9NH-1 859 2024-10-31 20:04:18 2024-11-21 09:06:40 JN99XP > KO00AB 29.2 miles 3° 2024-11-21 09:06:40
SP9NGL-12 64 2024-11-06 03:44:34 2024-11-16 09:16:50 JN99XP > JO90XB 27.8 miles 353° 2024-11-16 09:16:50
SP9BOT-1 28 2024-11-02 15:35:39 2024-11-14 09:35:19 JN99XP > KO00AC 31.3 miles 2° 2024-11-14 09:35:19
SP9GC 113 2024-10-31 21:19:17 2024-11-21 05:15:27 JN99XP > JO90XA 25.2 miles 359° 2024-11-21 05:15:27
SQ3WUC-1 4 2024-11-05 05:50:26 2024-11-08 02:08:21 JN99XP > JO91EU 167.1 miles 335° 2024-11-08 02:08:21
SR6AJG 5 2024-11-04 19:59:44 2024-11-08 15:57:23 JN99XP > JO70VW 206.7 miles 297° 2024-11-08 15:57:23
SR5KAC 5 2024-11-10 00:40:06 2024-11-13 16:49:14 JN99XP > KO01TT 165.2 miles 25° 2024-11-13 16:49:14
SR5KAC-2 1 2024-11-12 10:07:24 2024-11-12 10:07:24 JN99XP > KO01RL 141.3 miles 26° 2024-11-12 10:07:24
SP9IPZ-13 60 2024-11-02 08:04:13 2024-11-21 09:17:40 JN99XP > JO90QF 47.7 miles 324° 2024-11-21 09:17:40
SR9SRC-1 1 2024-11-09 22:12:47 2024-11-09 22:12:47 JN99XP > JO90BC 88.0 miles 292° 2024-11-09 22:12:47
SP6PTT-10 8 2024-10-31 22:18:20 2024-11-09 23:26:02 JN99XP > JO81SI 160.1 miles 318° 2024-11-09 23:26:02
SQ9DHF-10 1 2024-11-01 09:02:03 2024-11-01 09:02:03 JN99XP > JO90OA 43.4 miles 305° 2024-11-01 09:02:03

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 SR9NWC
callsign pkts first heard - EST last heard longest (rx => tx) longest at - EST
SQ7OWN-9 5 2024-11-01 06:51:21 2024-11-20 04:21:16 JO90XC > JN99XP 32.2 miles 358° 2024-11-01 06:51:21
SQ9APL-9 8 2024-11-02 10:55:45 2024-11-20 08:19:13 JO90WD > JN99XP 34.6 miles 351° 2024-11-02 10:55:45
SP9HZI-1 173 2024-11-01 02:09:40 2024-11-20 11:42:56 JO90WB > JN99XP 29.3 miles 352° 2024-11-20 11:42:56
SP8XCE-9 7 2024-11-21 07:53:18 2024-11-21 09:18:05 JO90WC > JN99XP 31.1 miles 350° 2024-11-21 09:07:25
SQ9IAB-9 36 2024-11-01 08:52:00 2024-11-19 21:42:17 KN09GU > JN99XP 27.7 miles 58° 2024-11-01 09:21:19
SR9POD 442 2024-10-31 20:06:18 2024-11-21 06:45:52 KO00CA > JN99XP 26.7 miles 25° 2024-11-21 06:45:52
SP9HSQ-9 29 2024-11-01 16:15:38 2024-11-20 11:52:05 KO00CB > JN99XP 30.2 miles 22° 2024-11-20 11:36:28
F5GJJ-9 14 2024-11-04 09:18:16 2024-11-08 08:47:11 JO90QD > JN99XP 42.9 miles 323° 2024-11-08 08:47:11
SP9MOA-3 593 2024-10-31 20:05:53 2024-11-20 21:33:24 KO00DA > JN99XP 30.7 miles 29° 2024-11-20 21:33:24
SR9NFB 1 2024-11-15 06:18:58 2024-11-15 06:18:58 KN09GL > JN99XP 28.3 miles 117° 2024-11-15 06:18:58
SQ9MEE-9 77 2024-11-01 09:27:49 2024-11-20 02:24:23 KO00FC > JN99XP 37.9 miles 35° 2024-11-15 19:17:23
SQ9GEE-9 86 2024-11-01 03:53:01 2024-11-17 14:16:42 JN99VX > JN99XP 24.9 miles 338° 2024-11-17 14:16:42
SP9ORD-9 25 2024-11-01 11:58:26 2024-11-20 13:05:56 JO90RE > JN99XP 43.3 miles 328° 2024-11-01 11:58:26
SP5XTF-7 1 2024-11-11 10:07:06 2024-11-11 10:07:06 JO90WC > JN99XP 33.0 miles 351° 2024-11-11 10:07:06
SP9SVH-10 228 2024-11-10 12:04:04 2024-11-21 07:01:29 JO90VC > JN99XP 33.1 miles 345° 2024-11-21 07:01:29
SP9PAP-9 8 2024-11-14 11:07:43 2024-11-14 11:41:51 KO00BC > JN99XP 31.3 miles 11° 2024-11-14 11:21:09
SQ5LTL-9 23 2024-11-04 03:07:52 2024-11-07 10:35:29 KO00AI > JN99XP 47.9 miles 4° 2024-11-07 10:35:29
SP9SVH-15 2 2024-11-10 17:48:31 2024-11-10 17:50:37 JO90VC > JN99XP 32.8 miles 345° 2024-11-10 17:50:37
SP9APV-9 4 2024-11-01 06:56:51 2024-11-01 07:58:40 JO90WB > JN99XP 27.8 miles 352° 2024-11-01 07:58:40
TA4AQG-2 6 2024-11-05 14:56:24 2024-11-11 09:03:10 JO90WB > JN99XP 29.3 miles 353° 2024-11-05 14:56:24
SR9NH 554 2024-10-31 20:05:09 2024-11-19 12:59:23 JO90XC > JN99XP 30.4 miles 358° 2024-11-19 12:59:23
SQ3RCH 12 2024-11-18 12:42:54 2024-11-19 04:02:34 JO90RB > JN99XP 36.8 miles 320° 2024-11-18 12:42:54
SP9POL-9 2 2024-11-15 07:58:22 2024-11-15 08:08:02 KO00AH > JN99XP 45.2 miles 2° 2024-11-15 07:58:22
SP7TQ-8 14 2024-11-08 12:52:53 2024-11-11 13:09:27 KO00AI > JN99XP 48.0 miles 4° 2024-11-11 12:30:12
SP9INZ-7 376 2024-11-04 01:34:07 2024-11-21 09:07:56 JO90PF > JN99XP 49.5 miles 321° 2024-11-04 09:24:36
SP9BOT-7 6 2024-11-11 04:27:55 2024-11-11 09:59:20 JN99SN > JN99XP 21.3 miles 255° 2024-11-11 07:16:15
SP9LPK-9 132 2024-11-02 13:25:30 2024-11-18 06:07:59 JO90XB > JN99XP 28.2 miles 358° 2024-11-18 05:13:35
SQ9KWX-7 23 2024-11-01 12:34:28 2024-11-14 11:07:05 JO90QG > JN99XP 49.5 miles 327° 2024-11-01 12:34:28
SP9EPI-9 113 2024-11-12 23:40:14 2024-11-19 16:31:41 KO00DB > JN99XP 29.6 miles 23° 2024-11-18 17:23:17
SP9NGL-7 73 2024-11-05 17:31:18 2024-11-17 08:49:41 JO90WC > JN99XP 31.9 miles 348° 2024-11-10 09:29:37
SP9SPM-7 1 2024-11-02 09:20:16 2024-11-02 09:20:16 JO90XB > JN99XP 29.0 miles 0° 2024-11-02 09:20:16
SP5ATP-9 9 2024-11-01 08:57:52 2024-11-03 12:56:38 KO00AH > JN99XP 44.7 miles 2° 2024-11-03 12:56:38
SP9SPM 31 2024-11-02 08:56:46 2024-11-17 12:28:11 KO00CA > JN99XP 27.4 miles 20° 2024-11-17 12:28:11
SP9PET-9 219 2024-11-04 12:20:06 2024-11-21 07:01:29 JO90WC > JN99XP 31.9 miles 349° 2024-11-07 02:13:48
SP9SPM-9 23 2024-11-02 07:48:00 2024-11-17 10:48:05 JO90RD > JN99XP 40.7 miles 324° 2024-11-17 09:47:53
SQ8L-4 76 2024-11-12 01:40:43 2024-11-20 20:39:30 JO90XC > JN99XP 30.1 miles 354° 2024-11-20 20:39:30
SQ9PXB-7 1 2024-11-16 16:29:16 2024-11-16 16:29:16 JO90XA > JN99XP 25.0 miles 356° 2024-11-16 16:29:16
SR9NH-1 263 2024-10-31 20:11:06 2024-11-19 23:59:10 KO00AB > JN99XP 29.2 miles 3° 2024-11-19 23:59:10
SP9RIK-7 6 2024-10-31 23:19:27 2024-11-01 00:23:17 JN99SN > JN99XP 20.6 miles 255° 2024-11-01 00:23:17
SP9IPZ-9 8 2024-11-05 09:12:57 2024-11-15 07:16:48 JO90QF > JN99XP 47.7 miles 324° 2024-11-15 07:16:48
SP9AWF-7 10 2024-11-09 13:38:33 2024-11-09 14:04:37 JO90XC > JN99XP 30.3 miles 0° 2024-11-09 14:04:37
SP9DAT-1 14 2024-10-31 23:26:34 2024-11-11 10:06:45 JO90WB > JN99XP 28.6 miles 348° 2024-11-11 10:06:45
SP9KON-9 6 2024-11-04 07:37:27 2024-11-09 05:53:22 JO90PE > JN99XP 49.5 miles 320° 2024-11-09 05:53:22
SP9NGL-9 15 2024-11-04 14:18:49 2024-11-04 15:19:54 JO90XB > JN99XP 28.2 miles 354° 2024-11-04 15:19:54
SP5LEG-3 20 2024-11-09 12:14:25 2024-11-09 16:47:08 KO00AI > JN99XP 48.7 miles 5° 2024-11-09 16:47:08
HF9T 2 2024-11-07 05:35:01 2024-11-11 14:59:54 JO90QD > JN99XP 42.1 miles 321° 2024-11-11 14:59:54
SQ9WDZ-3 27 2024-11-05 01:37:48 2024-11-07 10:09:31 JO90XB > JN99XP 29.1 miles 357° 2024-11-07 09:23:42
SP9DAT-9 43 2024-11-09 01:02:42 2024-11-16 13:30:33 KO00AE > JN99XP 37.0 miles 1° 2024-11-09 03:32:06
SO9DZP-7 3 2024-11-01 13:55:35 2024-11-01 14:46:32 KO00AC > JN99XP 32.3 miles 4° 2024-11-01 14:39:03
SP4AV-7 1 2024-11-11 06:55:26 2024-11-11 06:55:26 JO90WB > JN99XP 28.8 miles 352° 2024-11-11 06:55:26
SP9MON-7 4 2024-11-04 07:33:02 2024-11-04 08:08:25 JO90WD > JN99XP 34.5 miles 351° 2024-11-04 08:08:25
OM1ACK-7 3 2024-11-15 10:15:41 2024-11-15 10:32:11 KN09CH > JN99XP 26.6 miles 160° 2024-11-15 10:32:11

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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