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 N4SEM-4 - show graphs
Map loading...
Mic-E message: Off duty
Location: 28°00.02' N 82°08.66' W - locator EL88WA20QB - show map - static map
2.3 miles Southwest bearing 237° from Plant City, Hillsborough County, Florida, United States [?]
4.6 miles East bearing 85° from Dover, Hillsborough County, Florida, United States
19.5 miles East bearing 79° from Tampa, Hillsborough County, Florida, United States
36.3 miles Northeast bearing 64° from Saint Petersburg, Pinellas County, Florida, United States
Last position: 2017-09-22 13:50:05 EDT (2d 23h17m ago)
2017-09-22 13:50:05 EDT local time at Plant City, United States [?]
Altitude: 148 ft
Course: 262°
Speed: 9 MPH
Device: Kenwood: TM-D710 (rig)
Last path: N4SEM-4>RXPP0R via WC4PEM-8,WIDE1,KK4ONE-2*,WIDE2-1,qAR,WC4PEM-10 (good)
Positions stored: 565
Packet rate: 36 seconds between packets on average during 1792 seconds.
Stations near current position of N4SEM-4 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
n4sem-4-i31.5 yards 298°2017-09-17 22:46:44 EW88483.5 miles 64°2017-09-25 13:03:03
CW33677.9 miles 219°2017-09-25 13:04:36 DW52597.9 miles 55°2017-09-25 12:59:47
EW81328.1 miles 232°2017-09-25 13:04:23 K1LCH-28.8 miles 217°2017-09-23 17:35:33
KC4NGO8.9 miles 42°2017-09-25 11:16:42 K1LCH-19.0 miles 217°2017-09-24 17:37:36
AE4RM-79.8 miles 103°2017-09-03 19:49:23 DW192310.2 miles 189°2017-09-10 18:52:39
AF4AS10.6 miles 246°2017-09-23 18:13:55 N4DLW-410.8 miles 241°2017-09-25 12:34:38
KJ4SFE10.9 miles 92°2017-09-11 09:20:13 WC4PEM-711.2 miles 124°2017-09-25 13:07:42
N4WDH-911.3 miles 263°2017-09-25 08:22:37 EW179811.5 miles 290°2017-09-03 17:50:08
W4PUH-511.7 miles 78°2017-09-20 11:17:14 KM4TXF12.0 miles 206°2017-09-25 12:59:58
KF7WKS-512.1 miles 60°2017-09-10 19:20:47 K4LKL-1012.3 miles 70°2017-09-25 13:02:47
Stations which heard N4SEM-4 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
KG4YZY-10 9 2017-09-11 20:00:01 2017-09-14 15:33:52 EL88UA > EL88PG 32.7 miles 304° 2017-09-11 20:46:19
WC4PEM-9 1 2017-09-16 05:07:33 2017-09-16 05:07:33 EL88WA > EL98CE 25.5 miles 58° 2017-09-16 05:07:33
NI4CE-10 5 2017-09-11 19:22:29 2017-09-14 15:48:27 EL88TA > EL87VJ 43.3 miles 172° 2017-09-14 15:48:27
WC4PEM-10 270 2017-09-08 20:42:02 2017-09-22 13:48:23 EL88SB > EL97CV 39.7 miles 110° 2017-09-11 20:22:36
WC4PEM-14 7 2017-09-09 13:18:30 2017-09-16 05:05:28 EL87WW > EL98EG 35.8 miles 53° 2017-09-11 18:59:24
WC4PEM-12 8 2017-09-16 05:05:11 2017-09-22 05:55:08 EL88WA > EL97FS 39.0 miles 115° 2017-09-22 05:42:41
WC4PEM-11 19 2017-09-11 18:51:24 2017-09-22 13:49:20 EL88UA > EL97BR 29.7 miles 128° 2017-09-11 20:45:49
WB4DPC-10 7 2017-09-11 20:00:17 2017-09-11 20:22:33 EL88TB > EL88SC 4.8 miles 281° 2017-09-11 20:00:17
W4KPR 3 2017-09-09 01:06:33 2017-09-09 02:25:11 EL87UW > EL87TR 16.8 miles 200° 2017-09-09 02:25:11
NI4CE-12 40 2017-09-09 00:56:29 2017-09-18 21:27:51 EL88VA > EL87UT 14.3 miles 185° 2017-09-14 16:07:20
N4RTD 4 2017-09-09 01:06:03 2017-09-09 02:27:57 EL87UW > EL87UT 9.9 miles 195° 2017-09-09 01:06:03
W4TKB 9 2017-09-09 00:45:15 2017-09-22 05:48:10 EL87WX > EL88VI 25.7 miles 347° 2017-09-16 10:39:37
WC4PEM-8 169 2017-09-08 20:49:04 2017-09-22 13:50:05 EL88SB > EL88XD 25.8 miles 77° 2017-09-14 15:22:09
WC4PEM-7 99 2017-09-08 20:49:23 2017-09-22 13:25:10 EL87UW > EL97AV 20.8 miles 92° 2017-09-11 19:58:00
NI4CE-14 21 2017-09-11 19:08:32 2017-09-14 15:45:19 EL87VW > EL87QV 25.6 miles 260° 2017-09-11 19:08:32

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.
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.
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