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 N9LSF-9 - show graphs
Comment: aprs.fi for iOS
Location: 42°08.28' N 88°01.36' W - locator EN52XD73GD - show map
7.7 km West bearing 269° from Wheeling, Cook County, Illinois, United States [?]
10.9 km West bearing 252° from Riverwoods, Lake County, Illinois, United States
44.4 km Northwest bearing 316° from Chicago, Cook County, Illinois, United States
100.6 km South bearing 185° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position: 2025-05-14 19:05:56 UTC (10h39m ago)
2025-05-14 14:05:56 CDT local time at Wheeling, United States [?]
Course: 354°
Speed: 19 km/h
Device: aprs.fi: iPhone/iPad app (app, ios)
Last path: N9LSF-9>APFII0 via WIDE1-1,WIDE2-1,qAR,KD9BBB (good)
Positions stored: 5394
Other SSIDs: N9LSF-4 N9LSF-i
APRS igate – Statistics for 2025-05:
Stations heard directly: 9 on radio path – show map
Last heard a station directly: 2025-05-14 22:28:36 UTC (7h17m ago)
Position packets heard directly: 112 on radio path
Position packets sent to APRS-IS: 390 – show map
Stations which heard N9LSF-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

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 N9LSF-9
callsign pkts first heard - UTC last heard longest (rx => tx) longest at - UTC

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