Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station CHLSEA - show graphs
Comment: W8FSM Chelsea MI Digi/Igate U=12.3V,T=85.0C/185.0F
Last status: W8FSM
Location: 42°22.42' N 84°04.17' W - locator EN72XI19PQ - show map
4.6 miles Northwest bearing 327° from Chelsea, Washtenaw County, Michigan, United States [?]
9.5 miles West bearing 285° from Dexter, Washtenaw County, Michigan, United States
52.3 miles West bearing 274° from Detroit, Wayne County, Michigan, United States
55.7 miles Northwest bearing 332° from Toledo, Lucas County, Ohio, United States
Last position: 2025-01-20 06:16:38 EST (3m34s ago)
2025-01-20 06:16:38 EST local time at Chelsea, United States [?]
Last telemetry: 2025-01-20 06:17:33 EST (2m39s ago) – show telemetry
Vin: 12.375 Volt, Rx1h: 440 Pkt, Dg1h: 170 Pkt, Eff1h: 71 Pcnt, Temp1: 0 F
 O1     O2     O3     O4     I1     I2     I3     I4 
Device: Microsat: WX3in1 Plus 2.0
Last path: CHLSEA>APMI06 via TCPIP*,qAC,W8FSM-MI
Positions stored: 225
Packet rate: 147 seconds between packets on average during 7217 seconds.
APRS igate – Statistics for 2025-01:
Stations heard directly: 121 on radio path – show map
Last heard a station directly: 2025-01-20 06:19:39 EST (33s ago)
Normal receiver range estimate: 87 miles (Updated: 2025-01-20 06:07:15 EST)
Position packets heard directly: 14062 on radio path
Position packets sent to APRS-IS: 15413 – show map
Stations near current position of CHLSEA - show more
callsign distance last heard - EST      callsign distance last heard - EST
W8CMN-91.8 miles 127°2025-01-20 05:25:06 FW84182.9 miles 75°2025-01-20 06:15:46
KE8GJZ-14.5 miles 58°2025-01-20 06:18:06 KC8MKR5.7 miles 157°2025-01-15 12:13:32
NX0H-105.8 miles 78°2025-01-20 06:09:31 W2GLD-18.3 miles 27°2025-01-20 06:04:29
W2GLD-Y8.3 miles 27°2025-01-20 06:04:04 W2GLD X8.3 miles 27°2025-01-20 06:05:11
W2GLD-X8.3 miles 27°2025-01-20 06:05:21 W2GLD Z8.3 miles 27°2025-01-20 06:06:14
W2GLD-Z8.3 miles 27°2025-01-20 06:06:24 W2GLD Y8.3 miles 27°2025-01-20 06:04:03
W2GLD-48.3 miles 27°2024-12-28 22:33:57 W2GLD-58.4 miles 27°2025-01-15 20:15:12
W2GLD-78.4 miles 27°2025-01-19 09:59:46 W2GLD-138.4 miles 27°2025-01-20 06:15:05
W2GLD W8.4 miles 27°2025-01-20 06:19:53 W2GLD-W8.4 miles 27°2025-01-20 06:20:03
W2GLD-158.4 miles 27°2024-12-28 17:23:45 KE8TRL8.6 miles 62°2025-01-06 20:07:23
Stations heard directly by CHLSEA
callsign pkts first heard - EST last heard longest (rx => tx) longest at - EST
K8TIH 10 2025-01-05 01:11:20 2025-01-19 08:41:18 EN81EJ > EN72XI 72.0 miles 162° 2025-01-19 08:41:18
KA8SPW-15 110 2025-01-15 17:33:11 2025-01-17 15:22:12 EN72RW > EN72XI 43.9 miles 329° 2025-01-17 15:22:12
KC8ORT-9 87 2025-01-02 20:05:57 2025-01-16 19:15:29 EN82EW > EN72XI 44.2 miles 30° 2025-01-14 18:16:59
W8KRF-1 8 2025-01-10 02:07:00 2025-01-19 01:23:32 EN91CK > EN72XI 132.7 miles 118° 2025-01-19 01:23:32
VA3KMS 6 2025-01-07 13:42:13 2025-01-11 19:40:34 EN94NN > EN72XI 221.3 miles 45° 2025-01-11 19:40:34
W9GO-3 2 2025-01-18 09:01:13 2025-01-18 09:41:13 EN60WL > EN72XI 169.1 miles 220° 2025-01-18 09:41:13
W8JES 2 2025-01-05 22:28:05 2025-01-10 04:28:14 EN81EB > EN72XI 93.4 miles 166° 2025-01-10 04:28:14
K8WNJ-1 5 2025-01-04 18:54:18 2025-01-17 01:24:28 EN63VF > EN72XI 125.2 miles 299° 2025-01-17 01:24:28
MICON-4 3 2025-01-02 16:39:47 2025-01-13 15:23:55 EN83DA > EN72XI 48.2 miles 24° 2025-01-05 11:32:05
N8OZB 5 2025-01-05 22:17:44 2025-01-17 14:58:26 EN80BJ > EN72XI 136.4 miles 175° 2025-01-17 14:58:26
K8YSE-1 6 2025-01-08 02:34:37 2025-01-17 02:07:43 EN91DH > EN72XI 140.0 miles 120° 2025-01-17 02:07:43
VE3SPR 5 2025-01-05 03:22:29 2025-01-18 19:06:29 EN82QA > EN72XI 78.3 miles 107° 2025-01-18 19:06:29
-9 1 2025-01-02 11:38:23 2025-01-02 11:38:23 EN82EK > EN72XI 21.6 miles 76° 2025-01-02 11:38:23
W8KPU-9 26 2025-01-01 10:22:03 2025-01-13 16:25:06 EN82DX > EN72XI 45.7 miles 22° 2025-01-08 11:20:29
W8AGT 1 2025-01-15 21:07:05 2025-01-15 21:07:05 EN73FC > EN72XI 90.5 miles 303° 2025-01-15 21:07:05
VE3OMP 3 2025-01-07 04:59:30 2025-01-08 10:51:54 EN82TX > EN72XI 96.5 miles 64° 2025-01-08 10:51:54
WA8LMF-4 128 2024-12-31 21:26:42 2025-01-04 05:35:46 EN72TR > EN72XI 30.4 miles 327° 2025-01-04 05:35:46
K8COP-1 1 2025-01-09 17:24:53 2025-01-09 17:24:53 EN73AL > EN72XI 120.2 miles 310° 2025-01-09 17:24:53
K8COP-3 19 2025-01-06 07:03:11 2025-01-18 07:43:20 EN63TJ > EN72XI 135.0 miles 303° 2025-01-18 07:43:20
WA8LMF-14 1268 2024-12-31 19:34:20 2025-01-18 14:58:58 EN72TR > EN72XI 30.4 miles 327° 2025-01-18 14:58:58
KA8MZJ 2 2025-01-06 04:22:13 2025-01-07 08:53:37 EN81HK > EN72XI 73.7 miles 150° 2025-01-07 08:53:37
W9INX-1 17 2025-01-05 02:33:46 2025-01-19 00:04:02 EN71KE > EN72XI 98.4 miles 213° 2025-01-19 00:04:02
NEWBRY 6 2025-01-08 07:18:25 2025-01-11 22:04:55 EN91IL > EN72XI 155.8 miles 113° 2025-01-11 22:04:55
NM8W-9 6 2025-01-10 14:04:47 2025-01-17 16:25:11 EN81GV > EN72XI 45.3 miles 135° 2025-01-10 14:04:47
W8VFR-8 2 2025-01-11 04:16:36 2025-01-12 06:12:12 EM79QW > EN72XI 171.8 miles 190° 2025-01-12 06:12:12
W8VWY 20 2025-01-01 13:14:02 2025-01-19 12:03:26 EN82FG > EN72XI 28.6 miles 106° 2025-01-07 10:39:56
BRYEOC 1 2025-01-09 07:46:44 2025-01-09 07:46:44 EN72JO > EN72XI 61.9 miles 286° 2025-01-09 07:46:44
N8HKU-9 12 2025-01-01 14:05:02 2025-01-15 17:54:51 EN82HF > EN72XI 38.3 miles 104° 2025-01-15 17:48:48
WIXOM 150 2025-01-01 02:15:25 2025-01-20 02:25:51 EN82FM > EN72XI 29.8 miles 70° 2025-01-20 02:25:51
WB8HRO 2 2025-01-07 05:58:55 2025-01-11 23:44:39 EN72TQ > EN72XI 27.7 miles 322° 2025-01-11 23:44:39
W8XM-9 3 2025-01-02 19:07:33 2025-01-07 05:57:37 EN82DF > EN72XI 19.3 miles 121° 2025-01-02 19:07:33
N8NOE-1 9 2025-01-05 14:52:32 2025-01-15 15:39:52 EN82HQ > EN72XI 41.1 miles 59° 2025-01-15 13:29:46
METMOR 1 2025-01-10 04:18:37 2025-01-10 04:18:37 EN82IW > EN72XI 54.4 miles 45° 2025-01-10 04:18:37
K4VQV-9 11 2025-01-02 15:36:01 2025-01-02 16:39:07 EN82HQ > EN72XI 40.3 miles 59° 2025-01-02 15:36:01
MICON-3 9 2025-01-13 10:59:55 2025-01-14 12:49:25 EN82HS > EN72XI 43.7 miles 53° 2025-01-14 10:55:04
WB0KWJ-10 870 2024-12-31 19:03:08 2025-01-19 08:40:25 EN81DV > EN72XI 37.5 miles 151° 2025-01-19 08:40:25
KD8MJJ-9 7 2025-01-06 05:07:57 2025-01-16 19:02:08 EN72QR > EN72XI 36.6 miles 310° 2025-01-09 05:54:04
N8HKU-5 127 2025-01-10 01:46:34 2025-01-18 23:58:33 EN82EE > EN72XI 25.0 miles 122° 2025-01-18 23:58:33
WB8ILI 61 2025-01-08 20:28:53 2025-01-18 23:03:04 EN82PQ > EN72XI 70.7 miles 72° 2025-01-18 23:03:04
K8OE 1 2025-01-07 14:14:17 2025-01-07 14:14:17 EN73IO > EN72XI 105.2 miles 325° 2025-01-07 14:14:17
N8TMG-1 6 2025-01-04 22:41:41 2025-01-09 20:44:11 EN73HE > EN72XI 86.7 miles 311° 2025-01-09 20:44:11
KB8WLN-9 23 2025-01-01 07:47:20 2025-01-19 07:45:09 EN82IH > EN72XI 40.4 miles 95° 2025-01-17 07:11:20
K8GAH-9 41 2025-01-11 07:33:09 2025-01-18 19:14:24 EN81DT > EN72XI 43.2 miles 153° 2025-01-11 08:52:23
N8PVL-9 16 2025-01-05 09:04:52 2025-01-19 12:30:27 EN82HI > EN72XI 35.6 miles 92° 2025-01-19 08:56:53
VE3WRC 115 2024-12-31 21:38:28 2025-01-20 02:24:49 EN82LH > EN72XI 52.9 miles 94° 2025-01-20 02:24:49
W8QT-1 5 2025-01-06 22:29:17 2025-01-17 22:19:10 EN91LQ > EN72XI 162.0 miles 106° 2025-01-17 22:19:10
KE8WSH 1 2025-01-14 20:46:53 2025-01-14 20:46:53 EN72OT > EN72XI 47.8 miles 310° 2025-01-14 20:46:53
W8TEK-9 2 2025-01-03 17:27:56 2025-01-03 17:30:53 EN72PQ > EN72XI 38.0 miles 307° 2025-01-03 17:27:56
K0BBQ-9 1 2025-01-12 16:18:39 2025-01-12 16:18:39 EN72RT > EN72XI 37.7 miles 324° 2025-01-12 16:18:39
N8QYG-1 31 2024-12-31 19:39:20 2025-01-18 12:59:18 EN82GH > EN72XI 30.1 miles 97° 2025-01-18 12:59:18
NO8C 1 2025-01-16 16:50:16 2025-01-16 16:50:16 EN71WC > EN72XI 87.8 miles 182° 2025-01-16 16:50:16
KE8DDT-7 1773 2025-01-01 02:13:53 2025-01-20 05:42:35 EN82DH > EN72XI 19.2 miles 107° 2025-01-20 05:42:35
KE8KBC-9 211 2024-12-31 19:25:36 2025-01-19 20:22:25 EN82GS > EN72XI 39.8 miles 48° 2025-01-01 12:07:37
N8SOJ-9 2 2025-01-02 10:35:20 2025-01-02 12:15:29 EN81HV > EN72XI 48.2 miles 132° 2025-01-02 12:15:29
WB0KWJ-9 12 2025-01-06 12:51:39 2025-01-15 13:09:43 EN81DV > EN72XI 37.8 miles 151° 2025-01-14 12:29:28
K8JTT 100 2025-01-02 22:36:24 2025-01-20 04:17:52 EN82ID > EN72XI 44.7 miles 112° 2025-01-20 04:17:52
W2GLD-13 1 2025-01-03 00:15:41 2025-01-03 00:15:41 EN82AL > EN72XI 8.4 miles 27° 2025-01-03 00:15:41
N8AYY-4 6141 2024-12-31 19:00:28 2025-01-20 06:19:39 EN72WD > EN72XI 16.0 miles 187° 2025-01-20 06:19:39
KE8CGS-9 3 2025-01-04 16:15:44 2025-01-04 16:24:39 EN82CM > EN72XI 19.2 miles 57° 2025-01-04 16:22:33
KG7ELS 2 2025-01-01 14:39:38 2025-01-07 16:06:20 EN82EO > EN72XI 28.3 miles 54° 2025-01-07 16:06:20
KC1ICS-9 4 2025-01-10 17:55:22 2025-01-10 18:24:30 EN81DW > EN72XI 35.1 miles 145° 2025-01-10 17:55:22
W8JFL-7 3 2025-01-17 18:49:35 2025-01-18 02:02:16 EN82CH > EN72XI 14.8 miles 112° 2025-01-18 02:02:16
W9JCA-1 2 2025-01-12 01:58:12 2025-01-17 19:04:40 EN70ML > EN72XI 139.1 miles 200° 2025-01-17 19:04:40
KC8BPF 3 2025-01-01 09:49:16 2025-01-01 10:07:45 DM79NJ > EN72XI 1101.8 miles 266° 2025-01-01 10:07:45
N8LPD 2 2025-01-16 16:06:57 2025-01-18 07:06:54 EN82HJ > EN72XI 35.6 miles 88° 2025-01-18 07:06:54
W8RJD-9 4 2025-01-07 17:03:22 2025-01-15 12:31:16 EN82JQ > EN72XI 49.1 miles 63° 2025-01-07 17:03:22
N8KAM-3 1 2025-01-18 12:15:29 2025-01-18 12:15:29 EN82IF > EN72XI 42.7 miles 102° 2025-01-18 12:15:29
KB8SCS-14 1 2025-01-07 21:47:52 2025-01-07 21:47:52 EN70SK > EN72XI 135.4 miles 189° 2025-01-07 21:47:52
KC8GWH-7 4 2025-01-05 17:38:38 2025-01-10 17:53:10 EN81GP > EN72XI 58.6 miles 147° 2025-01-07 07:40:36
N8KAM 1 2025-01-10 23:04:36 2025-01-10 23:04:36 EN82IF > EN72XI 42.7 miles 102° 2025-01-10 23:04:36
K8RDN 46 2025-01-01 17:38:02 2025-01-19 12:58:28 EN72RU > EN72XI 41.1 miles 322° 2025-01-06 14:31:41
K9TLD-9 99 2025-01-12 15:50:03 2025-01-20 03:30:49 EN81HX > EN72XI 46.6 miles 127° 2025-01-15 02:04:38
VE3XFD 3 2025-01-05 03:35:07 2025-01-10 11:37:42 EN82QA > EN72XI 79.1 miles 106° 2025-01-10 11:37:42
N9KE-1 5 2025-01-05 08:27:19 2025-01-18 20:13:28 EN70MW > EN72XI 109.7 miles 206° 2025-01-18 20:13:28
KE8WAX-7 2 2025-01-10 08:38:02 2025-01-10 12:58:41 EN72RT > EN72XI 38.3 miles 324° 2025-01-10 12:58:41
KC0MYP 318 2025-01-01 08:20:34 2025-01-20 06:16:21 EN72RN > EN72XI 29.4 miles 299° 2025-01-20 06:16:21
KE8WKQ-9 2 2025-01-02 16:48:47 2025-01-17 07:10:26 EN82LI > EN72XI 51.7 miles 90° 2025-01-17 07:10:26
KE8OOD-10 3 2025-01-06 21:21:56 2025-01-17 06:36:00 EN64WO > EN72XI 185.3 miles 327° 2025-01-17 06:36:00
W9TNC-8 2 2025-01-09 15:05:35 2025-01-09 15:23:16 EN82CG > EN72XI 16.1 miles 113° 2025-01-09 15:23:16
KD8MJJ-14 2 2025-01-02 13:38:47 2025-01-02 13:45:45 EN72QT > EN72XI 40.8 miles 317° 2025-01-02 13:38:47
KE8MUJ-7 2 2025-01-17 05:39:12 2025-01-18 04:24:20 EN72RP > EN72XI 31.7 miles 309° 2025-01-18 04:24:20
AE8SP-9 22 2025-01-09 09:03:15 2025-01-13 21:08:13 EN82HQ > EN72XI 42.2 miles 57° 2025-01-09 09:37:51
N8OE 34 2025-01-04 07:20:58 2025-01-17 09:45:22 EN73FV > EN72XI 127.2 miles 325° 2025-01-17 09:45:22
W8RSM-9 179 2025-01-04 17:14:27 2025-01-19 15:55:49 EN81DU > EN72XI 42.3 miles 151° 2025-01-04 17:14:27
N1OF-9 8 2025-01-10 16:30:53 2025-01-10 17:16:15 EN81GU > EN72XI 49.4 miles 137° 2025-01-10 16:30:53
KE8YGW 5 2025-01-01 15:08:12 2025-01-01 17:08:04 EN82LH > EN72XI 51.5 miles 95° 2025-01-01 15:41:36
W2GLD-1 803 2024-12-31 19:54:36 2025-01-20 06:04:29 EN82AL > EN72XI 8.3 miles 27° 2025-01-20 06:04:29
VA3FTC-9 3 2025-01-01 14:20:39 2025-01-06 17:47:37 EN82LH > EN72XI 54.0 miles 93° 2025-01-01 14:20:39
NN5N-9 2 2025-01-17 17:27:13 2025-01-17 18:42:33 EN82HS > EN72XI 42.9 miles 51° 2025-01-17 17:27:13
ERIELK 14 2025-01-05 20:16:47 2025-01-19 06:26:48 EN82JG > EN72XI 45.8 miles 100° 2025-01-19 06:26:48
N8PUG-9 1 2025-01-07 17:23:58 2025-01-07 17:23:58 EN82DX > EN72XI 45.1 miles 23° 2025-01-07 17:23:58
W8KNX-9 248 2025-01-04 12:28:13 2025-01-19 15:57:07 EN82FM > EN72XI 28.9 miles 70° 2025-01-11 14:42:39
KD8IWS 3 2025-01-15 17:21:12 2025-01-16 16:34:09 JE07AF > EN72XI 7849.9 miles 127° 2025-01-16 16:34:09
KE8HOL-7 1 2025-01-08 20:14:57 2025-01-08 20:14:57 EN82JR > EN72XI 48.4 miles 61° 2025-01-08 20:14:57
N8JRD 75 2025-01-02 14:01:25 2025-01-06 18:58:15 EN82EK > EN72XI 21.5 miles 76° 2025-01-06 18:58:15
N8JRD-1 153 2025-01-01 11:56:46 2025-01-19 13:45:06 EN82CQ > EN72XI 26.1 miles 37° 2025-01-03 15:02:26
KA1JKB-7 12 2025-01-07 19:25:54 2025-01-07 21:16:13 EN72WF > EN72XI 9.8 miles 208° 2025-01-07 21:16:13
WS4JM-3 1 2025-01-01 12:57:34 2025-01-01 12:57:34 EN82IA > EN72XI 46.3 miles 122° 2025-01-01 12:57:34
KF8BOT 6 2024-12-31 20:14:22 2025-01-17 19:53:05 EN82GP > EN72XI 37.6 miles 58° 2025-01-07 18:45:45
W8UPR-7 8 2024-12-31 21:02:21 2025-01-01 15:52:35 EN82EI > EN72XI 21.0 miles 93° 2025-01-01 15:20:11
N8JRD-3 54 2025-01-04 09:44:29 2025-01-09 19:02:36 EN82FL > EN72XI 28.5 miles 73° 2025-01-05 12:29:59
KE8RIJ-9 6 2025-01-03 14:55:52 2025-01-10 16:13:56 EN81HW > EN72XI 45.0 miles 130° 2025-01-08 14:27:17
KI9NG-9 117 2025-01-13 15:13:04 2025-01-14 17:05:26 EN81HW > EN72XI 46.6 miles 128° 2025-01-14 11:09:02
KC8LOQ 3 2025-01-12 08:49:03 2025-01-12 10:03:21 EN72RP > EN72XI 32.7 miles 308° 2025-01-12 10:03:21
N8TEN-2 79 2025-01-01 16:07:16 2025-01-18 22:07:17 EN82CE > EN72XI 19.5 miles 132° 2025-01-18 22:07:17
KA1JKB-9 20 2024-12-31 22:34:07 2025-01-19 08:41:06 EN72SD > EN72XI 25.2 miles 228° 2024-12-31 22:58:04
KC1KTJ-9 13 2025-01-01 18:48:27 2025-01-05 15:51:36 EN82GJ > EN72XI 33.2 miles 85° 2025-01-01 18:48:27
N8UI 102 2025-01-06 16:54:02 2025-01-18 10:41:48 EN82GI > EN72XI 29.8 miles 92° 2025-01-18 10:41:48
N8RAJ-6 5 2025-01-07 18:05:33 2025-01-14 17:30:55 EN82IQ > EN72XI 46.1 miles 61° 2025-01-07 18:05:33
W8APS-1 18 2024-12-31 19:34:35 2025-01-01 13:04:35 EN82IT > EN72XI 50.9 miles 52° 2025-01-01 13:04:35
W8LRC-4 4 2025-01-07 02:10:33 2025-01-10 06:40:20 EN72HW > EN72XI 77.0 miles 300° 2025-01-10 06:40:20
KF8BRD-4 1 2025-01-04 02:31:44 2025-01-04 02:31:44 EN72PS > EN72XI 43.3 miles 307° 2025-01-04 02:31:44
WO5ABN-9 16 2025-01-03 15:37:25 2025-01-14 12:45:34 EN72RQ > EN72XI 32.5 miles 310° 2025-01-14 12:45:34
KE8CZD-3 1 2025-01-05 22:03:19 2025-01-05 22:03:19 EN82GO > EN72XI 33.8 miles 64° 2025-01-05 22:03:19
KE8CZD 3 2025-01-05 21:25:15 2025-01-05 22:25:17 EN82GO > EN72XI 33.8 miles 64° 2025-01-05 22:25:17
K8BSR-10 3 2025-01-04 05:32:34 2025-01-06 16:34:55 EN71VP > EN72XI 50.9 miles 186° 2025-01-06 16:34:55
N8JRD-9 3 2025-01-03 13:41:13 2025-01-03 13:47:53 EN82EK > EN72XI 21.8 miles 75° 2025-01-03 13:41:13
KE8SZL-9 7 2025-01-06 17:12:31 2025-01-10 15:04:49 EN71RQ > EN72XI 54.4 miles 207° 2025-01-10 08:25:11
N8JRD-10 10 2025-01-04 20:16:52 2025-01-05 21:26:11 EN82EK > EN72XI 21.5 miles 76° 2025-01-05 21:26:11
KD8GXA-15 7 2025-01-11 11:10:47 2025-01-11 23:12:09 EN82GN > EN72XI 31.7 miles 68° 2025-01-11 11:10:47
N1KRD-9 3 2025-01-16 19:31:52 2025-01-17 09:49:49 EN82JL > EN72XI 45.3 miles 80° 2025-01-17 08:34:47

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