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APRS station NS9RC - show graphs
Comment: W2,ILn - North Shore Radio Club
Location: 42°05.86' N 87°47.87' W - locator EN62CC43GK - show map
0.9 miles West bearing 261° from Northfield, Cook County, Illinois, United States [?]
3.3 miles West bearing 257° from Winnetka, Cook County, Illinois, United States
18.7 miles Northwest bearing 336° from Chicago, Cook County, Illinois, United States
65.2 miles South bearing 175° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position: 2024-05-21 01:00:39 EDT (22m55s ago)
2024-05-21 00:00:39 CDT local time at Northfield, United States [?]
Device: Kantronics: KPC-3
Last path: NS9RC>APN391 via qAO,K9IQP-13
Positions stored: 189
Packet rate: 315 seconds between packets on average during 15421 seconds.
Items and objects originated: 147.345NS 224.320NS 442.725NS
Other SSIDs: NS9RC-10 NS9RC-5 NS9RC-B NS9RC-A NS9RC-9 NS9RC-8 NS9RC-7 NS9RC-11
APRS digipeater – Statistics for 2024-05:
Stations heard directly: 105 on radio path – show map
Last heard a station directly: 2024-05-21 01:21:35 EDT (1m59s ago)
Normal receiver range estimate: 62 miles (Updated: 2024-04-30 18:29:45 EDT)
Position packets heard directly: 2515 on radio path
Stations near current position of NS9RC - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KC9USC-110.7 miles 138°2024-05-18 13:54:14 KC9USC-70.7 miles 137°2024-05-09 16:24:22
W9GAK-60.8 miles 100°2024-05-14 18:56:59 WA9IVH-121.0 miles 77°2024-05-19 18:19:50
W3JFB-91.0 miles 304°2024-05-19 19:20:36 KE9FID-71.1 miles 300°2024-05-15 17:15:20
KK9H-71.2 miles 61°2024-05-20 10:08:36 KK9H1.2 miles 61°2024-05-21 01:17:49
KC9USC-91.3 miles 89°2024-04-29 17:23:07 147.345NS1.6 miles 74°2024-05-21 01:13:41
KD9MSN-91.9 miles 297°2024-05-18 10:43:47 N9IHX2.1 miles 326°2024-05-21 01:20:16
KA9UAJ2.4 miles 156°2024-05-21 01:15:21 FW12032.7 miles 80°2024-05-21 01:18:39
KE9FID-12.9 miles 87°2024-05-21 01:16:15 W4MDD3.1 miles 61°2024-05-18 15:35:50
WO9X3.5 miles 282°2024-05-19 14:22:15 K0CKS-23.6 miles 260°2024-05-20 12:37:09
W8FOH-13.7 miles 105°2024-05-17 00:30:48 WB9YJA-94.0 miles 217°2024-05-20 20:23:51
Stations which heard NS9RC directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
W9RCG-2 3 2024-05-08 19:00:51 2024-05-17 21:00:42 EN62CC > EN53WC 72.3 miles 347° 2024-05-17 21:00:42
K9IQP-13 384 2024-05-01 00:30:55 2024-05-21 01:00:39 EN62CC > EN62AH 16.0 miles 329° 2024-05-21 01:00:39
WA9SGF-2 145 2024-05-01 02:30:55 2024-05-20 18:30:40 EN62CC > EN61BT 19.0 miles 189° 2024-05-20 18:30:40
KC8RFE-3 8 2024-05-03 12:30:53 2024-05-17 07:00:43 EN62CC > EN50PA 149.4 miles 198° 2024-05-17 07:00:43
W9LRT-3 17 2024-05-03 18:00:53 2024-05-19 16:30:41 EN62CC > EN61OP 61.1 miles 120° 2024-05-19 16:30:41
KX9A-1 3 2024-05-03 23:00:53 2024-05-17 07:30:43 EN62CC > EN51SI 60.6 miles 213° 2024-05-17 07:30:43
W9AUV 2 2024-05-06 06:30:50 2024-05-20 00:00:41 EN62CC > EN51TU 33.7 miles 239° 2024-05-20 00:00:41
K9MQ-1 1 2024-05-03 23:30:53 2024-05-03 23:30:53 EN62CC > EN61GL 47.3 miles 158° 2024-05-03 23:30:53
KV3T-10 75 2024-04-30 20:30:56 2024-05-20 23:30:40 EN62CC > EN62DB 4.5 miles 143° 2024-05-20 23:30:40
W9IPA-11 1 2024-05-04 00:30:53 2024-05-04 00:30:53 EN62CC > EN50VC 138.7 miles 189° 2024-05-04 00:30:53
KD9QEN 26 2024-05-14 21:00:46 2024-05-20 04:00:40 EN62CC > EN52WI 23.9 miles 315° 2024-05-20 04:00:40
KC9VIX-2 121 2024-05-01 06:30:55 2024-05-12 18:00:47 EN62CC > EN61AT 22.6 miles 205° 2024-05-12 18:00:47
K9GCP 8 2024-05-03 22:30:53 2024-05-20 05:00:40 EN62CC > EN52UA 25.6 miles 259° 2024-05-20 05:00:40
KB9OIV-2 234 2024-04-30 21:30:56 2024-05-20 21:30:40 EN62CC > EN62BQ 39.6 miles 356° 2024-05-20 21:30:40
KD9BBB 101 2024-05-01 14:00:55 2024-05-21 01:00:39 EN62CC > EN62BD 5.1 miles 324° 2024-05-21 01:00:39
KD9EBK 23 2024-05-04 04:00:52 2024-05-07 13:00:49 EN62CC > EN62BL 27.5 miles 353° 2024-05-07 13:00:49

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 NS9RC
callsign pkts first heard - EDT last heard longest (rx => tx) longest at - EDT
W9MKS-15 3 2024-05-03 23:56:41 2024-05-20 03:38:46 EN51ME > EN62CC 87.5 miles 225° 2024-05-20 03:38:46
K5ROK-14 42 2024-05-01 12:01:37 2024-05-15 22:49:47 EN61AX > EN62CC 11.4 miles 214° 2024-05-15 22:09:46
N104CD 11 2024-05-18 16:34:26 2024-05-18 17:04:11 EN52PU > EN62CC 70.5 miles 318° 2024-05-18 17:04:11
N9NIC-9 3 2024-05-02 12:26:18 2024-05-02 12:36:51 EN62BE > EN62CC 7.3 miles 326° 2024-05-02 12:26:18
WD9HBC-9 4 2024-05-11 22:40:05 2024-05-11 23:09:37 EN61EV > EN62CC 17.5 miles 149° 2024-05-11 22:40:05
NS9RC-5 109 2024-05-04 04:45:42 2024-05-21 01:12:07 EN62CF > EN62CC 8.0 miles 349° 2024-05-21 01:12:07
N9LKH-1 25 2024-05-03 20:20:26 2024-05-20 06:16:55 EN63BB > EN62CC 67.9 miles 356° 2024-05-20 06:16:55
WI9ARC-9 8 2024-05-12 15:33:22 2024-05-12 21:43:14 EN62DB > EN62CC 4.6 miles 106° 2024-05-12 21:30:51
W9AZ-1 23 2024-05-04 02:24:44 2024-05-20 03:25:07 EN61BC > EN62CC 67.5 miles 184° 2024-05-20 03:25:07
KA7RRA-9 2 2024-05-20 14:44:14 2024-05-20 15:09:30 EN61EU > EN62CC 17.8 miles 153° 2024-05-20 15:09:30
KY9H 689 2024-05-01 12:21:43 2024-05-21 01:21:35 EN62BA > EN62CC 6.4 miles 206° 2024-05-21 01:21:35
KC9MNL-12 24 2024-05-01 09:58:24 2024-05-17 19:53:19 EN61AW > EN62CC 12.7 miles 221° 2024-05-17 19:21:30
KC9TS-9 1 2024-05-03 18:17:31 2024-05-03 18:17:31 EN52XB > EN62CC 12.5 miles 258° 2024-05-03 18:17:31
KC9MWQ-9 11 2024-05-17 19:13:35 2024-05-18 16:39:40 EN61AV > EN62CC 14.3 miles 206° 2024-05-18 16:39:40
W8MAI-15 1 2024-05-20 04:26:59 2024-05-20 04:26:59 EN62VB > EN62CC 80.1 miles 92° 2024-05-20 04:26:59
K8COP-3 1 2024-05-03 15:46:39 2024-05-03 15:46:39 EN63TJ > EN62CC 116.8 miles 39° 2024-05-03 15:46:39
KB9KBK-9 4 2024-05-19 14:59:33 2024-05-19 15:06:39 EN62BA > EN62CC 6.8 miles 212° 2024-05-19 14:59:33
N14YT 26 2024-05-18 16:17:01 2024-05-18 17:16:47 EN53ID > EN62CC 106.1 miles 314° 2024-05-18 17:16:47
KD9BBB-7 1 2024-05-10 23:57:02 2024-05-10 23:57:02 EN62BD > EN62CC 5.0 miles 324° 2024-05-10 23:57:02
KD9BBB-9 101 2024-05-01 17:06:29 2024-05-20 17:40:30 EN62AH > EN62CC 16.2 miles 329° 2024-05-13 18:48:52
KA9RXK-9 13 2024-05-01 08:00:38 2024-05-17 17:11:25 EN52XB > EN62CC 12.9 miles 258° 2024-05-09 08:31:19
KV3T-9 6 2024-05-09 17:48:52 2024-05-14 18:29:32 EN62DB > EN62CC 6.2 miles 120° 2024-05-09 17:48:52
KC9USC-11 15 2024-05-03 13:36:04 2024-05-18 13:36:15 EN62CC > EN62CC 0.7 miles 139° 2024-05-18 13:36:15
KD9JSX-14 39 2024-05-02 14:33:09 2024-05-20 16:23:21 EN52WB > EN62CC 15.6 miles 262° 2024-05-07 10:49:06
KA8UGB-9 1 2024-05-01 08:17:43 2024-05-01 08:17:43 EN61EU > EN62CC 18.3 miles 154° 2024-05-01 08:17:43
KN4OMH-9 1 2024-05-04 08:30:21 2024-05-04 08:30:21 EN62BA > EN62CC 8.1 miles 218° 2024-05-04 08:30:21
W9LRT-3 78 2024-05-02 20:17:44 2024-05-20 04:40:39 EN61OP > EN62CC 61.1 miles 120° 2024-05-20 04:40:39
KD9IPG-5 6 2024-05-20 14:38:42 2024-05-20 17:11:25 EN62AC > EN62CC 9.1 miles 281° 2024-05-20 17:11:25
KD9LQG 3 2024-05-19 08:55:06 2024-05-19 09:09:45 EN62BA > EN62CC 6.8 miles 212° 2024-05-19 08:55:06
W9AUV 57 2024-05-03 21:26:06 2024-05-20 06:05:46 EN51TU > EN62CC 33.7 miles 239° 2024-05-20 06:05:46
KC0AHK-8 1 2024-05-20 19:42:05 2024-05-20 19:42:05 EN52WB > EN62CC 15.2 miles 262° 2024-05-20 19:42:05
W9YOY-9 4 2024-05-08 21:50:17 2024-05-08 22:01:08 EN62BE > EN62CC 7.5 miles 326° 2024-05-08 21:50:17
W9RX-9 7 2024-05-04 12:53:11 2024-05-05 10:33:00 EN52XA > EN62CC 12.9 miles 251° 2024-05-05 10:33:00
KD9MSN-9 67 2024-05-04 16:03:34 2024-05-18 10:43:49 EN61DX > EN62CC 8.0 miles 150° 2024-05-05 21:05:19
KA9RXK 233 2024-04-30 21:01:00 2024-05-21 00:29:32 EN61BW > EN62CC 12.2 miles 198° 2024-05-19 01:47:04
W9JFK-9 1 2024-05-09 11:24:06 2024-05-09 11:24:06 EN62BB > EN62CC 4.9 miles 228° 2024-05-09 11:24:06
N9MUC 117 2024-05-02 22:43:23 2024-05-21 01:08:31 EN52SB > EN62CC 33.5 miles 265° 2024-05-21 01:08:31
N9HE-9 54 2024-04-30 22:53:16 2024-05-20 22:41:30 EN61BW > EN62CC 12.6 miles 208° 2024-05-12 17:49:22
KD9QEN 1 2024-05-20 07:08:41 2024-05-20 07:08:41 EN52WI > EN62CC 23.9 miles 315° 2024-05-20 07:08:41
KD9RJR-7 13 2024-05-19 12:30:26 2024-05-19 17:52:05 EN62DC > EN62CC 3.5 miles 101° 2024-05-19 14:10:38
KD9QKZ-1 2 2024-05-16 13:41:26 2024-05-16 13:43:47 EN52XA > EN62CC 12.7 miles 251° 2024-05-16 13:43:47
K9NBG 3 2024-05-17 10:31:05 2024-05-17 10:36:07 EN62BE > EN62CC 6.8 miles 325° 2024-05-17 10:31:05
KC0AHK-11 54 2024-05-02 10:47:19 2024-05-04 16:10:53 EN61EU > EN62CC 18.6 miles 155° 2024-05-02 10:47:19
KD9EOT-9 1 2024-05-08 17:37:10 2024-05-08 17:37:10 EN62BA > EN62CC 5.7 miles 208° 2024-05-08 17:37:10
W9ASS-9 3 2024-05-16 14:32:30 2024-05-16 15:44:34 EN52WB > EN62CC 17.9 miles 263° 2024-05-16 14:32:30
N9KGH-9 6 2024-05-14 11:50:44 2024-05-16 18:10:42 EN61AW > EN62CC 14.3 miles 211° 2024-05-16 11:08:32
K9GCP 1 2024-05-20 02:30:56 2024-05-20 02:30:56 EN52UA > EN62CC 25.6 miles 259° 2024-05-20 02:30:56
K9GCP-2 4 2024-05-17 14:17:29 2024-05-19 14:19:13 EN52XC > EN62CC 11.8 miles 269° 2024-05-17 22:49:31
KD9RBV-9 1 2024-05-17 13:46:12 2024-05-17 13:46:12 EN62AA > EN62CC 10.1 miles 246° 2024-05-17 13:46:12
K9OPE-9 1 2024-05-20 00:45:35 2024-05-20 00:45:35 EN52XJ > EN62CC 26.1 miles 327° 2024-05-20 00:45:35
KD9IOJ-9 33 2024-05-04 15:21:47 2024-05-14 19:44:56 EN61EX > EN62CC 10.4 miles 135° 2024-05-12 21:20:41
K9QA 1 2024-05-14 06:46:24 2024-05-14 06:46:24 EN52XB > EN62CC 12.0 miles 257° 2024-05-14 06:46:24
KD9PDE-9 7 2024-05-13 21:22:49 2024-05-13 22:22:10 EN62AE > EN62CC 12.6 miles 307° 2024-05-13 22:22:10
K9GCP-3 21 2024-05-03 22:50:08 2024-05-20 22:51:07 EN52UB > EN62CC 24.1 miles 264° 2024-05-03 23:09:27
NX9S-9 2 2024-05-15 10:25:30 2024-05-15 10:31:48 EN62BE > EN62CC 7.6 miles 326° 2024-05-15 10:31:48
WA8AQS-9 9 2024-05-03 21:41:02 2024-05-05 16:52:26 EN61EU > EN62CC 19.2 miles 151° 2024-05-04 01:09:48
K9KJ-1 2 2024-05-20 04:42:09 2024-05-20 05:42:08 EN61FM > EN62CC 42.1 miles 160° 2024-05-20 05:42:08
WB9YJA-9 20 2024-05-03 08:34:02 2024-05-20 20:22:54 EN61BX > EN62CC 8.2 miles 213° 2024-05-17 21:58:02
W9BLN-9 19 2024-05-13 16:32:57 2024-05-20 12:50:01 EN52XB > EN62CC 13.9 miles 256° 2024-05-13 17:05:18
WA9IVH-12 124 2024-05-04 10:13:36 2024-05-19 18:19:50 EN62BC > EN62CC 4.8 miles 279° 2024-05-09 20:16:22
K9RST-9 1 2024-05-19 13:29:24 2024-05-19 13:29:24 EN61AW > EN62CC 14.4 miles 214° 2024-05-19 13:29:24
K9TLD-9 1 2024-05-18 11:56:06 2024-05-18 11:56:06 EN62BC > EN62CC 3.8 miles 285° 2024-05-18 11:56:06
W9GAK-6 30 2024-05-14 09:53:55 2024-05-14 18:57:00 EN62BD > EN62CC 4.5 miles 323° 2024-05-14 18:42:05
WD9EPF-9 1 2024-05-10 13:09:08 2024-05-10 13:09:08 EN61BR > EN62CC 25.4 miles 186° 2024-05-10 13:09:08
KD9ICT-9 78 2024-05-02 18:41:12 2024-05-20 19:36:56 EN51XW > EN62CC 16.4 miles 229° 2024-05-02 18:41:12
N9OIG-9 6 2024-05-16 02:01:17 2024-05-19 17:19:21 EN61AW > EN62CC 12.8 miles 209° 2024-05-19 17:04:20
K0CKS-2 7 2024-05-02 19:52:17 2024-05-20 12:37:10 EN62BE > EN62CC 6.8 miles 324° 2024-05-02 19:52:17
WI9ELK-10 5 2024-05-20 00:56:24 2024-05-20 06:27:02 EN52RM > EN62CC 48.8 miles 309° 2024-05-20 06:27:02
KE9FID-7 9 2024-05-01 17:13:00 2024-05-15 17:15:20 EN62DC > EN62CC 3.2 miles 72° 2024-05-01 20:48:34
N9AOT-8 12 2024-05-15 10:34:15 2024-05-20 15:11:32 EN61AV > EN62CC 15.0 miles 205° 2024-05-15 10:55:19
W9NXM-9 3 2024-05-15 10:53:27 2024-05-15 10:59:41 EN52XD > EN62CC 12.8 miles 288° 2024-05-15 10:53:27
KB9RTO-7 3 2024-05-15 20:15:18 2024-05-15 20:30:47 EN61CX > EN62CC 8.9 miles 183° 2024-05-15 20:30:47
K9UUU-9 4 2024-05-15 14:59:38 2024-05-18 10:56:07 EN61BV > EN62CC 14.0 miles 201° 2024-05-18 10:45:50
KE8PJQ-9 9 2024-05-02 18:11:36 2024-05-19 11:37:28 EN61BW > EN62CC 12.5 miles 208° 2024-05-17 20:14:09
AE2MP-9 5 2024-05-19 09:49:05 2024-05-19 10:00:28 EN61BW > EN62CC 11.7 miles 204° 2024-05-19 10:00:28
K9UUU 16 2024-05-10 11:25:50 2024-05-20 10:25:27 EN61CW > EN62CC 12.1 miles 187° 2024-05-20 10:25:27
N9WWR-14 15 2024-05-07 11:24:39 2024-05-14 10:45:40 EN61BV > EN62CC 14.3 miles 203° 2024-05-14 09:33:02
W9POL-9 35 2024-05-03 09:41:48 2024-05-20 21:17:22 EN52WB > EN62CC 17.8 miles 264° 2024-05-03 22:38:23
W5ZF-9 5 2024-05-01 15:02:35 2024-05-10 20:16:53 EN62BE > EN62CC 8.9 miles 327° 2024-05-10 12:46:56
K9AJW 6 2024-05-06 07:14:48 2024-05-20 06:48:39 EN52TE > EN62CC 29.9 miles 282° 2024-05-20 06:48:39
WA9NNN-10 9 2024-05-06 12:38:58 2024-05-20 16:53:51 EN62CE > EN62CC 6.0 miles 359° 2024-05-13 15:29:59
K9FMB-7 1 2024-05-09 20:34:40 2024-05-09 20:34:40 EN62BB > EN62CC 5.9 miles 230° 2024-05-09 20:34:40
K8EGG-10 2 2024-05-03 19:52:55 2024-05-19 09:15:21 EN61BW > EN62CC 11.7 miles 203° 2024-05-19 09:15:21
KD9MXZ-9 3 2024-05-04 12:59:21 2024-05-04 13:20:46 EN62CA > EN62CC 4.5 miles 186° 2024-05-04 12:59:21
KD9VYI-9 1 2024-05-20 11:24:35 2024-05-20 11:24:35 EN62BA > EN62CC 6.8 miles 212° 2024-05-20 11:24:35
N9NTM 1 2024-05-08 23:09:35 2024-05-08 23:09:35 EN51UV > EN62CC 28.2 miles 241° 2024-05-08 23:09:35
KB9WGP-9 7 2024-05-17 15:04:57 2024-05-18 22:04:36 EN52XB > EN62CC 14.4 miles 261° 2024-05-18 22:04:36
KA9I-9 4 2024-05-15 07:18:06 2024-05-17 11:48:44 EN52XD > EN62CC 12.4 miles 288° 2024-05-15 07:21:42
KE8ZBV 1 2024-05-19 16:28:55 2024-05-19 16:28:55 EN62SC > EN62CC 67.1 miles 90° 2024-05-19 16:28:55
KE8ZVB-9 1 2024-05-09 10:30:32 2024-05-09 10:30:32 EN61ET > EN62CC 21.1 miles 156° 2024-05-09 10:30:32
KE9FID-1 31 2024-05-10 22:37:54 2024-05-21 01:16:16 EN62DC > EN62CC 2.9 miles 87° 2024-05-21 01:16:16
N9GOF-9 6 2024-05-05 08:43:36 2024-05-19 16:15:35 EN62AA > EN62CC 9.7 miles 239° 2024-05-19 16:08:32
W3JFB-9 6 2024-05-19 17:47:59 2024-05-19 19:20:36 EN62CB > EN62CC 1.2 miles 177° 2024-05-19 18:46:51
KE9FZ-9 9 2024-05-04 00:32:16 2024-05-20 05:39:59 EN61GM > EN62CC 44.7 miles 155° 2024-05-20 04:34:56
KD9JAW-9 2 2024-05-13 18:06:03 2024-05-13 18:08:43 EN62CA > EN62CC 5.6 miles 182° 2024-05-13 18:08:43
K0OTC-9 1 2024-05-13 19:00:29 2024-05-13 19:00:29 EN61CX > EN62CC 8.0 miles 192° 2024-05-13 19:00:29
W9BBB-1 4 2024-05-04 00:46:37 2024-05-20 03:09:17 EN51SB > EN62CC 77.3 miles 205° 2024-05-20 03:09:17
KD9NKA-9 4 2024-05-05 15:18:20 2024-05-05 15:56:24 EN61BX > EN62CC 10.3 miles 203° 2024-05-05 15:56:24
W9PLH-9 9 2024-05-02 10:06:50 2024-05-20 18:47:27 EN52XC > EN62CC 11.8 miles 267° 2024-05-17 17:27:58
KD9BBB-6 22 2024-05-12 15:13:01 2024-05-12 16:08:28 EN62BD > EN62CC 5.1 miles 324° 2024-05-12 16:08:28
KB8PLR-9 3 2024-05-09 11:24:52 2024-05-09 12:05:51 EN62DC > EN62CC 3.5 miles 69° 2024-05-09 11:31:51
W1LQA-1 1 2024-05-10 05:48:14 2024-05-10 05:48:14 EN52XB > EN62CC 12.2 miles 256° 2024-05-10 05:48:14
KE9ACJ-8 1 2024-05-15 15:40:51 2024-05-15 15:40:51 EN62BE > EN62CC 5.7 miles 329° 2024-05-15 15:40:51
K9FRD-9 1 2024-05-03 09:46:40 2024-05-03 09:46:40 EN61BW > EN62CC 10.5 miles 203° 2024-05-03 09:46:40
K0EKL-9 14 2024-05-15 11:43:37 2024-05-18 21:48:54 EN61AV > EN62CC 16.6 miles 202° 2024-05-18 21:33:28

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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS